Bill Text: IL HB4937 | 2025-2026 | 104th General Assembly | Introduced

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Bill Title: Amends the Illinois Income Tax Act. Repeals provisions concerning an addition modification related to the business interest deduction taken under specified provisions of the Internal Revenue Code. Effective immediately.

Sponsorship: Partisan Bill (Republican 1)

Status: (Introduced - Dead) 2026-03-27 - Rule 19(a) / Re-referred to Rules Committee [HB4937 Detail]

Download: Illinois-2025-HB4937-Introduced.html

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104TH GENERAL ASSEMBLY State of Illinois 2025 and 2026HB4937 Introduced , by Rep. Amy Elik SYNOPSIS AS INTRODUCED:
35 ILCS 5/203 from Ch. 120, par. 2-203
Amends the Illinois Income Tax Act. Repeals provisions concerning an addition modification related to the business interest deduction taken under specified provisions of the Internal Revenue Code. Effective immediately.
LRB104 17741 HLH 31172 b
A BILL FOR
HB4937 LRB104 17741 HLH 31172 b
AN ACT concerning revenue.
Be it enacted by the People of the State of Illinois,
represented in the General Assembly:
Section 5. The Illinois Income Tax Act is amended by
changing Section 203 as follows:
(35 ILCS 5/203) (from Ch. 120, par. 2-203)
Sec. 203. Base income defined.
(a) Individuals.
(1) In general. In the case of an individual, base
income means an amount equal to the taxpayer's adjusted
gross income for the taxable year as modified by paragraph
(2).
(2) Modifications. The adjusted gross income referred
to in paragraph (1) shall be modified by adding thereto
the sum of the following amounts:
(A) An amount equal to all amounts paid or accrued
to the taxpayer as interest or dividends during the
taxable year to the extent excluded from gross income
in the computation of adjusted gross income, except
stock dividends of qualified public utilities
described in Section 305(e) of the Internal Revenue
Code;
(B) An amount equal to the amount of tax imposed by

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this Act to the extent deducted from gross income in
the computation of adjusted gross income for the
taxable year;
(C) An amount equal to the amount received during
the taxable year as a recovery or refund of real
property taxes paid with respect to the taxpayer's
principal residence under the Revenue Act of 1939 and
for which a deduction was previously taken under
subparagraph (L) of this paragraph (2) prior to July
1, 1991, the retrospective application date of Article
4 of Public Act 87-17. In the case of multi-unit or
multi-use structures and farm dwellings, the taxes on
the taxpayer's principal residence shall be that
portion of the total taxes for the entire property
which is attributable to such principal residence;
(D) An amount equal to the amount of the capital
gain deduction allowable under the Internal Revenue
Code, to the extent deducted from gross income in the
computation of adjusted gross income;
(D-5) An amount, to the extent not included in
adjusted gross income, equal to the amount of money
withdrawn by the taxpayer in the taxable year from a
medical care savings account and the interest earned
on the account in the taxable year of a withdrawal
pursuant to subsection (b) of Section 20 of the
Medical Care Savings Account Act or subsection (b) of

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Section 20 of the Medical Care Savings Account Act of
2000;
(D-10) For taxable years ending after December 31,
1997, an amount equal to any eligible remediation
costs that the individual deducted in computing
adjusted gross income and for which the individual
claims a credit under subsection (l) of Section 201;
(D-15) For taxable years 2001 through 2025, an
amount equal to the bonus depreciation deduction taken
on the taxpayer's federal income tax return for the
taxable year under subsection (k) of Section 168 of
the Internal Revenue Code; for taxable years 2026 and
thereafter, an amount equal to the bonus depreciation
deduction taken on the taxpayer's federal income tax
return for the taxable year under subsection (k) or
(n) of Section 168 of the Internal Revenue Code;
(D-16) If the taxpayer sells, transfers, abandons,
or otherwise disposes of property for which the
taxpayer was required in any taxable year to make an
addition modification under subparagraph (D-15), then
an amount equal to the aggregate amount of the
deductions taken in all taxable years under
subparagraph (Z) with respect to that property.
If the taxpayer continues to own property through
the last day of the last tax year for which a
subtraction is allowed with respect to that property

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under subparagraph (Z) and for which the taxpayer was
allowed in any taxable year to make a subtraction
modification under subparagraph (Z), then an amount
equal to that subtraction modification.
The taxpayer is required to make the addition
modification under this subparagraph only once with
respect to any one piece of property;
(D-17) An amount equal to the amount otherwise
allowed as a deduction in computing base income for
interest paid, accrued, or incurred, directly or
indirectly, (i) for taxable years ending on or after
December 31, 2004, to a foreign person who would be a
member of the same unitary business group but for the
fact that foreign person's business activity outside
the United States is 80% or more of the foreign
person's total business activity and (ii) for taxable
years ending on or after December 31, 2008, to a person
who would be a member of the same unitary business
group but for the fact that the person is prohibited
under Section 1501(a)(27) from being included in the
unitary business group because he or she is ordinarily
required to apportion business income under different
subsections of Section 304. The addition modification
required by this subparagraph shall be reduced to the
extent that dividends were included in base income of
the unitary group for the same taxable year and

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received by the taxpayer or by a member of the
taxpayer's unitary business group (including amounts
included in gross income under Sections 951 through
964 of the Internal Revenue Code and amounts included
in gross income under Section 78 of the Internal
Revenue Code) with respect to the stock of the same
person to whom the interest was paid, accrued, or
incurred. For taxable years ending on and after
December 31, 2025, for purposes of applying this
paragraph in the case of a taxpayer to which Section
163(j) of the Internal Revenue Code applies for the
taxable year, the reduction in the amount of interest
for which a deduction is allowed by reason of Section
163(j) shall be treated as allocable first to persons
who are not foreign persons referred to in this
paragraph and then to such foreign persons.
This For taxable years ending before December 31,
2025, this paragraph shall not apply to the following:
(i) an item of interest paid, accrued, or
incurred, directly or indirectly, to a person who
is subject in a foreign country or state, other
than a state which requires mandatory unitary
reporting, to a tax on or measured by net income
with respect to such interest; or
(ii) an item of interest paid, accrued, or
incurred, directly or indirectly, to a person if

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the taxpayer can establish, based on a
preponderance of the evidence, both of the
following:
(a) the person, during the same taxable
year, paid, accrued, or incurred, the interest
to a person that is not a related member, and
(b) the transaction giving rise to the
interest expense between the taxpayer and the
person did not have as a principal purpose the
avoidance of Illinois income tax, and is paid
pursuant to a contract or agreement that
reflects an arm's-length interest rate and
terms; or
(iii) the taxpayer can establish, based on
clear and convincing evidence, that the interest
paid, accrued, or incurred relates to a contract
or agreement entered into at arm's-length rates
and terms and the principal purpose for the
payment is not federal or Illinois tax avoidance;
or
(iv) an item of interest paid, accrued, or
incurred, directly or indirectly, to a person if
the taxpayer establishes by clear and convincing
evidence that the adjustments are unreasonable; or
if the taxpayer and the Director agree in writing
to the application or use of an alternative method

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of apportionment under Section 304(f).
For taxable years ending on or after December 31,
2025, this paragraph shall not apply to the following:
(i) an item of interest paid, accrued, or
incurred, directly or indirectly, to a person if
the taxpayer can establish, based on a
preponderance of the evidence, both of the
following:
(a) the person, during the same taxable
year, paid, accrued, or incurred, the interest
to a person that is not a related member, and
(b) the transaction giving rise to the
interest expense between the taxpayer and the
person did not have as a principal purpose the
avoidance of Illinois income tax and is paid
pursuant to a contract or agreement that
reflects an arm's-length interest rate and
terms; or
(ii) an item of interest paid, accrued, or
incurred, directly or indirectly, to a person if
the taxpayer establishes by clear and convincing
evidence that the adjustments are unreasonable; or
if the taxpayer and the Director agree in writing
to the application or use of an alternative method
of apportionment under Section 304(f).
Nothing in this subsection shall preclude the

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Director from making any other adjustment otherwise
allowed under Section 404 of this Act for any tax year
beginning after the effective date of this amendment
provided such adjustment is made pursuant to
regulation adopted by the Department and such
regulations provide methods and standards by which the
Department will utilize its authority under Section
404 of this Act;
(D-18) An amount equal to the amount of intangible
expenses and costs otherwise allowed as a deduction in
computing base income, and that were paid, accrued, or
incurred, directly or indirectly, (i) for taxable
years ending on or after December 31, 2004, to a
foreign person who would be a member of the same
unitary business group but for the fact that the
foreign person's business activity outside the United
States is 80% or more of that person's total business
activity and (ii) for taxable years ending on or after
December 31, 2008, to a person who would be a member of
the same unitary business group but for the fact that
the person is prohibited under Section 1501(a)(27)
from being included in the unitary business group
because he or she is ordinarily required to apportion
business income under different subsections of Section
304. The addition modification required by this
subparagraph shall be reduced to the extent that

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dividends were included in base income of the unitary
group for the same taxable year and received by the
taxpayer or by a member of the taxpayer's unitary
business group (including amounts included in gross
income under Sections 951 through 964 of the Internal
Revenue Code and amounts included in gross income
under Section 78 of the Internal Revenue Code) with
respect to the stock of the same person to whom the
intangible expenses and costs were directly or
indirectly paid, incurred, or accrued. The preceding
sentence does not apply to the extent that the same
dividends caused a reduction to the addition
modification required under Section 203(a)(2)(D-17) of
this Act. As used in this subparagraph, the term
"intangible expenses and costs" includes (1) expenses,
losses, and costs for, or related to, the direct or
indirect acquisition, use, maintenance or management,
ownership, sale, exchange, or any other disposition of
intangible property; (2) losses incurred, directly or
indirectly, from factoring transactions or discounting
transactions; (3) royalty, patent, technical, and
copyright fees; (4) licensing fees; and (5) other
similar expenses and costs. For purposes of this
subparagraph, "intangible property" includes patents,
patent applications, trade names, trademarks, service
marks, copyrights, mask works, trade secrets, and

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similar types of intangible assets.
This For taxable years ending before December 31,
2025, this paragraph shall not apply to the following:
(i) any item of intangible expenses or costs
paid, accrued, or incurred, directly or
indirectly, from a transaction with a person who
is subject in a foreign country or state, other
than a state which requires mandatory unitary
reporting, to a tax on or measured by net income
with respect to such item; or
(ii) any item of intangible expense or cost
paid, accrued, or incurred, directly or
indirectly, if the taxpayer can establish, based
on a preponderance of the evidence, both of the
following:
(a) the person during the same taxable
year paid, accrued, or incurred, the
intangible expense or cost to a person that is
not a related member, and
(b) the transaction giving rise to the
intangible expense or cost between the
taxpayer and the person did not have as a
principal purpose the avoidance of Illinois
income tax, and is paid pursuant to a contract
or agreement that reflects arm's-length terms;
or

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(iii) any item of intangible expense or cost
paid, accrued, or incurred, directly or
indirectly, from a transaction with a person if
the taxpayer establishes by clear and convincing
evidence, that the adjustments are unreasonable;
or if the taxpayer and the Director agree in
writing to the application or use of an
alternative method of apportionment under Section
304(f). ;
For taxable years ending on or after December 31,
2025, this paragraph shall not apply to the following:
(i) any item of intangible expense or cost
paid, accrued, or incurred, directly or
indirectly, if the taxpayer can establish, based
on a preponderance of the evidence, both of the
following:
(a) the person during the same taxable
year paid, accrued, or incurred, the
intangible expense or cost to a person that is
not a related member, and
(b) the transaction giving rise to the
intangible expense or cost between the
taxpayer and the person did not have as a
principal purpose the avoidance of Illinois
income tax, and is paid pursuant to a contract
or agreement that reflects arm's-length terms;

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or
(ii) any item of intangible expense or cost
paid, accrued, or incurred, directly or
indirectly, from a transaction with a person if
the taxpayer establishes by clear and convincing
evidence, that the adjustments are unreasonable;
or if the taxpayer and the Director agree in
writing to the application or use of an
alternative method of apportionment under Section
304(f).
Nothing in this subsection shall preclude the
Director from making any other adjustment otherwise
allowed under Section 404 of this Act for any tax year
beginning after the effective date of this amendment
provided such adjustment is made pursuant to
regulation adopted by the Department and such
regulations provide methods and standards by which the
Department will utilize its authority under Section
404 of this Act;
(D-19) For taxable years ending on or after
December 31, 2008, an amount equal to the amount of
insurance premium expenses and costs otherwise allowed
as a deduction in computing base income, and that were
paid, accrued, or incurred, directly or indirectly, to
a person who would be a member of the same unitary
business group but for the fact that the person is

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prohibited under Section 1501(a)(27) from being
included in the unitary business group because he or
she is ordinarily required to apportion business
income under different subsections of Section 304. The
addition modification required by this subparagraph
shall be reduced to the extent that dividends were
included in base income of the unitary group for the
same taxable year and received by the taxpayer or by a
member of the taxpayer's unitary business group
(including amounts included in gross income under
Sections 951 through 964 of the Internal Revenue Code
and amounts included in gross income under Section 78
of the Internal Revenue Code) with respect to the
stock of the same person to whom the premiums and costs
were directly or indirectly paid, incurred, or
accrued. The preceding sentence does not apply to the
extent that the same dividends caused a reduction to
the addition modification required under Section
203(a)(2)(D-17) or Section 203(a)(2)(D-18) of this
Act;
(D-20) For taxable years beginning on or after
January 1, 2002 and ending on or before December 31,
2006, in the case of a distribution from a qualified
tuition program under Section 529 of the Internal
Revenue Code, other than (i) a distribution from a
College Savings Pool created under Section 16.5 of the

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State Treasurer Act or (ii) a distribution from the
Illinois Prepaid Tuition Trust Fund, an amount equal
to the amount excluded from gross income under Section
529(c)(3)(B). For taxable years beginning on or after
January 1, 2007, in the case of a distribution from a
qualified tuition program under Section 529 of the
Internal Revenue Code, other than (i) a distribution
from a College Savings Pool created under Section 16.5
of the State Treasurer Act, (ii) a distribution from
the Illinois Prepaid Tuition Trust Fund, or (iii) a
distribution from a qualified tuition program under
Section 529 of the Internal Revenue Code that (I)
adopts and determines that its offering materials
comply with the College Savings Plans Network's
disclosure principles and (II) has made reasonable
efforts to inform in-state residents of the existence
of in-state qualified tuition programs by informing
Illinois residents directly and, where applicable, to
inform financial intermediaries distributing the
program to inform in-state residents of the existence
of in-state qualified tuition programs at least
annually, an amount equal to the amount excluded from
gross income under Section 529(c)(3)(B).
For the purposes of this subparagraph (D-20), a
qualified tuition program has made reasonable efforts
if it makes disclosures (which may use the term

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"in-state program" or "in-state plan" and need not
specifically refer to Illinois or its qualified
programs by name) (i) directly to prospective
participants in its offering materials or makes a
public disclosure, such as a website posting; and (ii)
where applicable, to intermediaries selling the
out-of-state program in the same manner that the
out-of-state program distributes its offering
materials;
(D-20.5) For taxable years beginning on or after
January 1, 2018, in the case of a distribution from a
qualified ABLE program under Section 529A of the
Internal Revenue Code, other than a distribution from
a qualified ABLE program created under Section 16.6 of
the State Treasurer Act, an amount equal to the amount
excluded from gross income under Section 529A(c)(1)(B)
of the Internal Revenue Code;
(D-21) For taxable years beginning on or after
January 1, 2007, in the case of transfer of moneys from
a qualified tuition program under Section 529 of the
Internal Revenue Code that is administered by the
State to an out-of-state program, an amount equal to
the amount of moneys previously deducted from base
income under subsection (a)(2)(Y) of this Section;
(D-21.5) For taxable years beginning on or after
January 1, 2018, in the case of the transfer of moneys

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from a qualified tuition program under Section 529 or
a qualified ABLE program under Section 529A of the
Internal Revenue Code that is administered by this
State to an ABLE account established under an
out-of-state ABLE account program, an amount equal to
the contribution component of the transferred amount
that was previously deducted from base income under
subsection (a)(2)(Y) or subsection (a)(2)(HH) of this
Section;
(D-22) For taxable years beginning on or after
January 1, 2009, and prior to January 1, 2018, in the
case of a nonqualified withdrawal or refund of moneys
from a qualified tuition program under Section 529 of
the Internal Revenue Code administered by the State
that is not used for qualified expenses at an eligible
education institution, an amount equal to the
contribution component of the nonqualified withdrawal
or refund that was previously deducted from base
income under subsection (a)(2)(y) of this Section,
provided that the withdrawal or refund did not result
from the beneficiary's death or disability. For
taxable years beginning on or after January 1, 2018:
(1) in the case of a nonqualified withdrawal or
refund, as defined under Section 16.5 of the State
Treasurer Act, of moneys from a qualified tuition
program under Section 529 of the Internal Revenue Code

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administered by the State, an amount equal to the
contribution component of the nonqualified withdrawal
or refund that was previously deducted from base
income under subsection (a)(2)(Y) of this Section, and
(2) in the case of a nonqualified withdrawal or refund
from a qualified ABLE program under Section 529A of
the Internal Revenue Code administered by the State
that is not used for qualified disability expenses, an
amount equal to the contribution component of the
nonqualified withdrawal or refund that was previously
deducted from base income under subsection (a)(2)(HH)
of this Section;
(D-23) An amount equal to the credit allowable to
the taxpayer under Section 218(a) of this Act,
determined without regard to Section 218(c) of this
Act;
(D-24) For taxable years ending on or after
December 31, 2017, an amount equal to the deduction
allowed under Section 199 of the Internal Revenue Code
for the taxable year;
(D-25) In the case of a resident, an amount equal
to the amount of tax for which a credit is allowed
pursuant to Section 201(p)(7) of this Act;
and by deducting from the total so obtained the sum of the
following amounts:
(E) For taxable years ending before December 31,

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2001, any amount included in such total in respect of
any compensation (including but not limited to any
compensation paid or accrued to a serviceman while a
prisoner of war or missing in action) paid to a
resident by reason of being on active duty in the Armed
Forces of the United States and in respect of any
compensation paid or accrued to a resident who as a
governmental employee was a prisoner of war or missing
in action, and in respect of any compensation paid to a
resident in 1971 or thereafter for annual training
performed pursuant to Sections 502 and 503, Title 32,
United States Code as a member of the Illinois
National Guard or, beginning with taxable years ending
on or after December 31, 2007, the National Guard of
any other state. For taxable years ending on or after
December 31, 2001, any amount included in such total
in respect of any compensation (including but not
limited to any compensation paid or accrued to a
serviceman while a prisoner of war or missing in
action) paid to a resident by reason of being a member
of any component of the Armed Forces of the United
States and in respect of any compensation paid or
accrued to a resident who as a governmental employee
was a prisoner of war or missing in action, and in
respect of any compensation paid to a resident in 2001
or thereafter by reason of being a member of the

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Illinois National Guard or, beginning with taxable
years ending on or after December 31, 2007, the
National Guard of any other state. The provisions of
this subparagraph (E) are exempt from the provisions
of Section 250;
(F) An amount equal to all amounts included in
such total pursuant to the provisions of Sections
402(a), 402(c), 403(a), 403(b), 406(a), 407(a), and
408 of the Internal Revenue Code, or included in such
total as distributions under the provisions of any
retirement or disability plan for employees of any
governmental agency or unit, or retirement payments to
retired partners, which payments are excluded in
computing net earnings from self employment by Section
1402 of the Internal Revenue Code and regulations
adopted pursuant thereto;
(G) The valuation limitation amount;
(H) An amount equal to the amount of any tax
imposed by this Act which was refunded to the taxpayer
and included in such total for the taxable year;
(I) An amount equal to all amounts included in
such total pursuant to the provisions of Section 111
of the Internal Revenue Code as a recovery of items
previously deducted from adjusted gross income in the
computation of taxable income;
(J) An amount equal to those dividends included in

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such total which were paid by a corporation which
conducts business operations in a River Edge
Redevelopment Zone or zones created under the River
Edge Redevelopment Zone Act, and conducts
substantially all of its operations in a River Edge
Redevelopment Zone or zones. This subparagraph (J) is
exempt from the provisions of Section 250;
(K) An amount equal to those dividends included in
such total that were paid by a corporation that
conducts business operations in a federally designated
Foreign Trade Zone or Sub-Zone and that is designated
a High Impact Business located in Illinois; provided
that dividends eligible for the deduction provided in
subparagraph (J) of paragraph (2) of this subsection
shall not be eligible for the deduction provided under
this subparagraph (K);
(L) For taxable years ending after December 31,
1983, an amount equal to all social security benefits
and railroad retirement benefits included in such
total pursuant to Sections 72(r) and 86 of the
Internal Revenue Code;
(M) With the exception of any amounts subtracted
under subparagraph (N), an amount equal to the sum of
all amounts disallowed as deductions by (i) Sections
171(a)(2) and 265(a)(2) of the Internal Revenue Code,
and all amounts of expenses allocable to interest and

HB4937 - 21 - LRB104 17741 HLH 31172 b
disallowed as deductions by Section 265(a)(1) of the
Internal Revenue Code; and (ii) for taxable years
ending on or after August 13, 1999, Sections
171(a)(2), 265, 280C, and 832(b)(5)(B)(i) of the
Internal Revenue Code, plus, for taxable years ending
on or after December 31, 2011, Section 45G(e)(3) of
the Internal Revenue Code and, for taxable years
ending on or after December 31, 2008, any amount
included in gross income under Section 87 of the
Internal Revenue Code; the provisions of this
subparagraph are exempt from the provisions of Section
250;
(N) An amount equal to all amounts included in
such total which are exempt from taxation by this
State either by reason of its statutes or Constitution
or by reason of the Constitution, treaties or statutes
of the United States; provided that, in the case of any
statute of this State that exempts income derived from
bonds or other obligations from the tax imposed under
this Act, the amount exempted shall be the interest
net of bond premium amortization;
(O) An amount equal to any contribution made to a
job training project established pursuant to the Tax
Increment Allocation Redevelopment Act;
(P) An amount equal to the amount of the deduction
used to compute the federal income tax credit for

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restoration of substantial amounts held under claim of
right for the taxable year pursuant to Section 1341 of
the Internal Revenue Code or of any itemized deduction
taken from adjusted gross income in the computation of
taxable income for restoration of substantial amounts
held under claim of right for the taxable year;
(Q) An amount equal to any amounts included in
such total, received by the taxpayer as an
acceleration in the payment of life, endowment or
annuity benefits in advance of the time they would
otherwise be payable as an indemnity for a terminal
illness;
(R) An amount equal to the amount of any federal or
State bonus paid to veterans of the Persian Gulf War;
(S) An amount, to the extent included in adjusted
gross income, equal to the amount of a contribution
made in the taxable year on behalf of the taxpayer to a
medical care savings account established under the
Medical Care Savings Account Act or the Medical Care
Savings Account Act of 2000 to the extent the
contribution is accepted by the account administrator
as provided in that Act;
(T) An amount, to the extent included in adjusted
gross income, equal to the amount of interest earned
in the taxable year on a medical care savings account
established under the Medical Care Savings Account Act

HB4937 - 23 - LRB104 17741 HLH 31172 b
or the Medical Care Savings Account Act of 2000 on
behalf of the taxpayer, other than interest added
pursuant to item (D-5) of this paragraph (2);
(U) For one taxable year beginning on or after
January 1, 1994, an amount equal to the total amount of
tax imposed and paid under subsections (a) and (b) of
Section 201 of this Act on grant amounts received by
the taxpayer under the Nursing Home Grant Assistance
Act during the taxpayer's taxable years 1992 and 1993;
(V) Beginning with tax years ending on or after
December 31, 1995 and ending with tax years ending on
or before December 31, 2004, an amount equal to the
amount paid by a taxpayer who is a self-employed
taxpayer, a partner of a partnership, or a shareholder
in a Subchapter S corporation for health insurance or
long-term care insurance for that taxpayer or that
taxpayer's spouse or dependents, to the extent that
the amount paid for that health insurance or long-term
care insurance may be deducted under Section 213 of
the Internal Revenue Code, has not been deducted on
the federal income tax return of the taxpayer, and
does not exceed the taxable income attributable to
that taxpayer's income, self-employment income, or
Subchapter S corporation income; except that no
deduction shall be allowed under this item (V) if the
taxpayer is eligible to participate in any health

HB4937 - 24 - LRB104 17741 HLH 31172 b
insurance or long-term care insurance plan of an
employer of the taxpayer or the taxpayer's spouse. The
amount of the health insurance and long-term care
insurance subtracted under this item (V) shall be
determined by multiplying total health insurance and
long-term care insurance premiums paid by the taxpayer
times a number that represents the fractional
percentage of eligible medical expenses under Section
213 of the Internal Revenue Code of 1986 not actually
deducted on the taxpayer's federal income tax return;
(W) For taxable years beginning on or after
January 1, 1998, all amounts included in the
taxpayer's federal gross income in the taxable year
from amounts converted from a regular IRA to a Roth
IRA. This paragraph is exempt from the provisions of
Section 250;
(X) For taxable year 1999 and thereafter, an
amount equal to the amount of any (i) distributions,
to the extent includible in gross income for federal
income tax purposes, made to the taxpayer because of
his or her status as a victim of persecution for racial
or religious reasons by Nazi Germany or any other Axis
regime or as an heir of the victim and (ii) items of
income, to the extent includible in gross income for
federal income tax purposes, attributable to, derived
from or in any way related to assets stolen from,

HB4937 - 25 - LRB104 17741 HLH 31172 b
hidden from, or otherwise lost to a victim of
persecution for racial or religious reasons by Nazi
Germany or any other Axis regime immediately prior to,
during, and immediately after World War II, including,
but not limited to, interest on the proceeds
receivable as insurance under policies issued to a
victim of persecution for racial or religious reasons
by Nazi Germany or any other Axis regime by European
insurance companies immediately prior to and during
World War II; provided, however, this subtraction from
federal adjusted gross income does not apply to assets
acquired with such assets or with the proceeds from
the sale of such assets; provided, further, this
paragraph shall only apply to a taxpayer who was the
first recipient of such assets after their recovery
and who is a victim of persecution for racial or
religious reasons by Nazi Germany or any other Axis
regime or as an heir of the victim. The amount of and
the eligibility for any public assistance, benefit, or
similar entitlement is not affected by the inclusion
of items (i) and (ii) of this paragraph in gross income
for federal income tax purposes. This paragraph is
exempt from the provisions of Section 250;
(Y) For taxable years beginning on or after
January 1, 2002 and ending on or before December 31,
2004, moneys contributed in the taxable year to a

HB4937 - 26 - LRB104 17741 HLH 31172 b
College Savings Pool account under Section 16.5 of the
State Treasurer Act, except that amounts excluded from
gross income under Section 529(c)(3)(C)(i) of the
Internal Revenue Code shall not be considered moneys
contributed under this subparagraph (Y). For taxable
years beginning on or after January 1, 2005, a maximum
of $10,000 contributed in the taxable year to (i) a
College Savings Pool account under Section 16.5 of the
State Treasurer Act or (ii) the Illinois Prepaid
Tuition Trust Fund, except that amounts excluded from
gross income under Section 529(c)(3)(C)(i) of the
Internal Revenue Code shall not be considered moneys
contributed under this subparagraph (Y). For purposes
of this subparagraph, contributions made by an
employer on behalf of an employee, or matching
contributions made by an employee, shall be treated as
made by the employee. This subparagraph (Y) is exempt
from the provisions of Section 250;
(Z) For taxable years 2001 and thereafter, for the
taxable year in which the bonus depreciation deduction
is taken on the taxpayer's federal income tax return
under subsection (k) or (n) of Section 168 of the
Internal Revenue Code and for each applicable taxable
year thereafter, an amount equal to "x", where:
(1) "y" equals the amount of the depreciation
deduction taken for the taxable year on the

HB4937 - 27 - LRB104 17741 HLH 31172 b
taxpayer's federal income tax return on property
for which the bonus depreciation deduction was
taken in any year under subsection (k) or (n) of
Section 168 of the Internal Revenue Code, but not
including the bonus depreciation deduction;
(2) for taxable years ending on or before
December 31, 2005, "x" equals "y" multiplied by 30
and then divided by 70 (or "y" multiplied by
0.429); and
(3) for taxable years ending after December
31, 2005:
(i) for property on which a bonus
depreciation deduction of 30% of the adjusted
basis was taken, "x" equals "y" multiplied by
30 and then divided by 70 (or "y" multiplied
by 0.429);
(ii) for property on which a bonus
depreciation deduction of 50% of the adjusted
basis was taken, "x" equals "y" multiplied by
1.0;
(iii) for property on which a bonus
depreciation deduction of 100% of the adjusted
basis was taken in a taxable year ending on or
after December 31, 2021, "x" equals the
depreciation deduction that would be allowed
on that property if the taxpayer had made the

HB4937 - 28 - LRB104 17741 HLH 31172 b
election under Section 168(k)(7) or Section
168(n)(6) of the Internal Revenue Code to not
claim bonus depreciation on that property; and
(iv) for property on which a bonus
depreciation deduction of a percentage other
than 30%, 50% or 100% of the adjusted basis
was taken in a taxable year ending on or after
December 31, 2021, "x" equals "y" multiplied
by 100 times the percentage bonus depreciation
on the property (that is, 100(bonus%)) and
then divided by 100 times 1 minus the
percentage bonus depreciation on the property
(that is, 100(1-bonus%)).
The aggregate amount deducted under this
subparagraph in all taxable years for any one piece of
property may not exceed the amount of the bonus
depreciation deduction taken on that property on the
taxpayer's federal income tax return under subsection
(k) or (n) of Section 168 of the Internal Revenue Code.
This subparagraph (Z) is exempt from the provisions of
Section 250;
(AA) If the taxpayer sells, transfers, abandons,
or otherwise disposes of property for which the
taxpayer was required in any taxable year to make an
addition modification under subparagraph (D-15), then
an amount equal to that addition modification.

HB4937 - 29 - LRB104 17741 HLH 31172 b
If the taxpayer continues to own property through
the last day of the last tax year for which a
subtraction is allowed with respect to that property
under subparagraph (Z) and for which the taxpayer was
required in any taxable year to make an addition
modification under subparagraph (D-15), then an amount
equal to that addition modification.
The taxpayer is allowed to take the deduction
under this subparagraph only once with respect to any
one piece of property.
This subparagraph (AA) is exempt from the
provisions of Section 250;
(BB) Any amount included in adjusted gross income,
other than salary, received by a driver in a
ridesharing arrangement using a motor vehicle;
(CC) The amount of (i) any interest income (net of
the deductions allocable thereto) taken into account
for the taxable year with respect to a transaction
with a taxpayer that is required to make an addition
modification with respect to such transaction under
Section 203(a)(2)(D-17), 203(b)(2)(E-12),
203(c)(2)(G-12), or 203(d)(2)(D-7), but not to exceed
the amount of that addition modification, and (ii) any
income from intangible property (net of the deductions
allocable thereto) taken into account for the taxable
year with respect to a transaction with a taxpayer

HB4937 - 30 - LRB104 17741 HLH 31172 b
that is required to make an addition modification with
respect to such transaction under Section
203(a)(2)(D-18), 203(b)(2)(E-13), 203(c)(2)(G-13), or
203(d)(2)(D-8), but not to exceed the amount of that
addition modification. This subparagraph (CC) is
exempt from the provisions of Section 250;
(DD) An amount equal to the interest income taken
into account for the taxable year (net of the
deductions allocable thereto) with respect to
transactions with (i) a foreign person who would be a
member of the taxpayer's unitary business group but
for the fact that the foreign person's business
activity outside the United States is 80% or more of
that person's total business activity and (ii) for
taxable years ending on or after December 31, 2008, to
a person who would be a member of the same unitary
business group but for the fact that the person is
prohibited under Section 1501(a)(27) from being
included in the unitary business group because he or
she is ordinarily required to apportion business
income under different subsections of Section 304, but
not to exceed the addition modification required to be
made for the same taxable year under Section
203(a)(2)(D-17) for interest paid, accrued, or
incurred, directly or indirectly, to the same person.
This subparagraph (DD) is exempt from the provisions

HB4937 - 31 - LRB104 17741 HLH 31172 b
of Section 250;
(EE) An amount equal to the income from intangible
property taken into account for the taxable year (net
of the deductions allocable thereto) with respect to
transactions with (i) a foreign person who would be a
member of the taxpayer's unitary business group but
for the fact that the foreign person's business
activity outside the United States is 80% or more of
that person's total business activity and (ii) for
taxable years ending on or after December 31, 2008, to
a person who would be a member of the same unitary
business group but for the fact that the person is
prohibited under Section 1501(a)(27) from being
included in the unitary business group because he or
she is ordinarily required to apportion business
income under different subsections of Section 304, but
not to exceed the addition modification required to be
made for the same taxable year under Section
203(a)(2)(D-18) for intangible expenses and costs
paid, accrued, or incurred, directly or indirectly, to
the same foreign person. This subparagraph (EE) is
exempt from the provisions of Section 250;
(FF) An amount equal to any amount awarded to the
taxpayer during the taxable year by the Court of
Claims under subsection (c) of Section 8 of the Court
of Claims Act for time unjustly served in a State

HB4937 - 32 - LRB104 17741 HLH 31172 b
prison. This subparagraph (FF) is exempt from the
provisions of Section 250;
(GG) For taxable years ending on or after December
31, 2011, in the case of a taxpayer who was required to
add back any insurance premiums under Section
203(a)(2)(D-19), such taxpayer may elect to subtract
that part of a reimbursement received from the
insurance company equal to the amount of the expense
or loss (including expenses incurred by the insurance
company) that would have been taken into account as a
deduction for federal income tax purposes if the
expense or loss had been uninsured. If a taxpayer
makes the election provided for by this subparagraph
(GG), the insurer to which the premiums were paid must
add back to income the amount subtracted by the
taxpayer pursuant to this subparagraph (GG). This
subparagraph (GG) is exempt from the provisions of
Section 250;
(HH) For taxable years beginning on or after
January 1, 2018 and prior to January 1, 2028, a maximum
of $10,000 contributed in the taxable year to a
qualified ABLE account under Section 16.6 of the State
Treasurer Act, except that amounts excluded from gross
income under Section 529(c)(3)(C)(i) or Section
529A(c)(1)(C) of the Internal Revenue Code shall not
be considered moneys contributed under this

HB4937 - 33 - LRB104 17741 HLH 31172 b
subparagraph (HH). For purposes of this subparagraph
(HH), contributions made by an employer on behalf of
an employee, or matching contributions made by an
employee, shall be treated as made by the employee;
(II) For taxable years that begin on or after
January 1, 2021 and begin before January 1, 2026, the
amount that is included in the taxpayer's federal
adjusted gross income pursuant to Section 61 of the
Internal Revenue Code as discharge of indebtedness
attributable to student loan forgiveness and that is
not excluded from the taxpayer's federal adjusted
gross income pursuant to paragraph (5) of subsection
(f) of Section 108 of the Internal Revenue Code;
(JJ) For taxable years beginning on or after
January 1, 2023, for any cannabis establishment
operating in this State and licensed under the
Cannabis Regulation and Tax Act or any cannabis
cultivation center or medical cannabis dispensing
organization operating in this State and licensed
under the Compassionate Use of Medical Cannabis
Program Act, an amount equal to the deductions that
were disallowed under Section 280E of the Internal
Revenue Code for the taxable year and that would not be
added back under this subsection. The provisions of
this subparagraph (JJ) are exempt from the provisions
of Section 250;

HB4937 - 34 - LRB104 17741 HLH 31172 b
(KK) To the extent includible in gross income for
federal income tax purposes, any amount awarded or
paid to the taxpayer as a result of a judgment or
settlement for fertility fraud as provided in Section
15 of the Illinois Fertility Fraud Act, donor
fertility fraud as provided in Section 20 of the
Illinois Fertility Fraud Act, or similar action in
another state;
(LL) For taxable years beginning on or after
January 1, 2026, if the taxpayer is a qualified
worker, as defined in the Workforce Development
through Charitable Loan Repayment Act, an amount equal
to the amount included in the taxpayer's federal
adjusted gross income that is attributable to student
loan repayment assistance received by the taxpayer
during the taxable year from a qualified community
foundation under the provisions of the Workforce
Development through Charitable Loan Repayment Act.
This subparagraph (LL) is exempt from the
provisions of Section 250; and
(MM) For taxable years beginning on or after
January 1, 2025, if the taxpayer is an eligible
resident as defined in the Medical Debt Relief Act, an
amount equal to the amount included in the taxpayer's
federal adjusted gross income that is attributable to
medical debt relief received by the taxpayer during

HB4937 - 35 - LRB104 17741 HLH 31172 b
the taxable year from a nonprofit medical debt relief
coordinator under the provisions of the Medical Debt
Relief Act. This subparagraph (MM) is exempt from the
provisions of Section 250.
(b) Corporations.
(1) In general. In the case of a corporation, base
income means an amount equal to the taxpayer's taxable
income for the taxable year as modified by paragraph (2).
(2) Modifications. The taxable income referred to in
paragraph (1) shall be modified by adding thereto the sum
of the following amounts:
(A) An amount equal to all amounts paid or accrued
to the taxpayer as interest and all distributions
received from regulated investment companies during
the taxable year to the extent excluded from gross
income in the computation of taxable income;
(B) An amount equal to the amount of tax imposed by
this Act to the extent deducted from gross income in
the computation of taxable income for the taxable
year;
(C) In the case of a regulated investment company,
an amount equal to the excess of (i) the net long-term
capital gain for the taxable year, over (ii) the
amount of the capital gain dividends designated as
such in accordance with Section 852(b)(3)(C) of the

HB4937 - 36 - LRB104 17741 HLH 31172 b
Internal Revenue Code and any amount designated under
Section 852(b)(3)(D) of the Internal Revenue Code,
attributable to the taxable year (this amendatory Act
of 1995 (Public Act 89-89) is declarative of existing
law and is not a new enactment);
(D) The amount of any net operating loss deduction
taken in arriving at taxable income, other than a net
operating loss carried forward from a taxable year
ending prior to December 31, 1986;
(E) For taxable years in which a net operating
loss carryback or carryforward from a taxable year
ending prior to December 31, 1986 is an element of
taxable income under paragraph (1) of subsection (e)
or subparagraph (E) of paragraph (2) of subsection
(e), the amount by which addition modifications other
than those provided by this subparagraph (E) exceeded
subtraction modifications in such earlier taxable
year, with the following limitations applied in the
order that they are listed:
(i) the addition modification relating to the
net operating loss carried back or forward to the
taxable year from any taxable year ending prior to
December 31, 1986 shall be reduced by the amount
of addition modification under this subparagraph
(E) which related to that net operating loss and
which was taken into account in calculating the

HB4937 - 37 - LRB104 17741 HLH 31172 b
base income of an earlier taxable year, and
(ii) the addition modification relating to the
net operating loss carried back or forward to the
taxable year from any taxable year ending prior to
December 31, 1986 shall not exceed the amount of
such carryback or carryforward;
For taxable years in which there is a net
operating loss carryback or carryforward from more
than one other taxable year ending prior to December
31, 1986, the addition modification provided in this
subparagraph (E) shall be the sum of the amounts
computed independently under the preceding provisions
of this subparagraph (E) for each such taxable year;
(E-5) For taxable years ending after December 31,
1997, an amount equal to any eligible remediation
costs that the corporation deducted in computing
adjusted gross income and for which the corporation
claims a credit under subsection (l) of Section 201;
(E-10) For taxable years 2001 through 2025, an
amount equal to the bonus depreciation deduction taken
on the taxpayer's federal income tax return for the
taxable year under subsection (k) of Section 168 of
the Internal Revenue Code; for taxable years 2026 and
thereafter, an amount equal to the bonus depreciation
deduction taken on the taxpayer's federal income tax
return for the taxable year under subsection (k) or

HB4937 - 38 - LRB104 17741 HLH 31172 b
(n) of Section 168 of the Internal Revenue Code;
(E-11) If the taxpayer sells, transfers, abandons,
or otherwise disposes of property for which the
taxpayer was required in any taxable year to make an
addition modification under subparagraph (E-10), then
an amount equal to the aggregate amount of the
deductions taken in all taxable years under
subparagraph (T) with respect to that property.
If the taxpayer continues to own property through
the last day of the last tax year for which a
subtraction is allowed with respect to that property
under subparagraph (T) and for which the taxpayer was
allowed in any taxable year to make a subtraction
modification under subparagraph (T), then an amount
equal to that subtraction modification.
The taxpayer is required to make the addition
modification under this subparagraph only once with
respect to any one piece of property;
(E-12) An amount equal to the amount otherwise
allowed as a deduction in computing base income for
interest paid, accrued, or incurred, directly or
indirectly, (i) for taxable years ending on or after
December 31, 2004, to a foreign person who would be a
member of the same unitary business group but for the
fact the foreign person's business activity outside
the United States is 80% or more of the foreign

HB4937 - 39 - LRB104 17741 HLH 31172 b
person's total business activity and (ii) for taxable
years ending on or after December 31, 2008, to a person
who would be a member of the same unitary business
group but for the fact that the person is prohibited
under Section 1501(a)(27) from being included in the
unitary business group because he or she is ordinarily
required to apportion business income under different
subsections of Section 304. The addition modification
required by this subparagraph shall be reduced to the
extent that dividends were included in base income of
the unitary group for the same taxable year and
received by the taxpayer or by a member of the
taxpayer's unitary business group (including amounts
included in gross income pursuant to Sections 951
through 964 of the Internal Revenue Code and amounts
included in gross income under Section 78 of the
Internal Revenue Code) with respect to the stock of
the same person to whom the interest was paid,
accrued, or incurred. For taxable years ending on and
after December 31, 2025, for purposes of applying this
paragraph in the case of a taxpayer to which Section
163(j) of the Internal Revenue Code applies for the
taxable year, the reduction in the amount of interest
for which a deduction is allowed by reason of Section
163(j) shall be treated as allocable first to persons
who are not foreign persons referred to in this

HB4937 - 40 - LRB104 17741 HLH 31172 b
paragraph and then to such foreign persons.
This For taxable years ending before December 31,
2025, this paragraph shall not apply to the following:
(i) an item of interest paid, accrued, or
incurred, directly or indirectly, to a person who
is subject in a foreign country or state, other
than a state which requires mandatory unitary
reporting, to a tax on or measured by net income
with respect to such interest; or
(ii) an item of interest paid, accrued, or
incurred, directly or indirectly, to a person if
the taxpayer can establish, based on a
preponderance of the evidence, both of the
following:
(a) the person, during the same taxable
year, paid, accrued, or incurred, the interest
to a person that is not a related member, and
(b) the transaction giving rise to the
interest expense between the taxpayer and the
person did not have as a principal purpose the
avoidance of Illinois income tax, and is paid
pursuant to a contract or agreement that
reflects an arm's-length interest rate and
terms; or
(iii) the taxpayer can establish, based on
clear and convincing evidence, that the interest

HB4937 - 41 - LRB104 17741 HLH 31172 b
paid, accrued, or incurred relates to a contract
or agreement entered into at arm's-length rates
and terms and the principal purpose for the
payment is not federal or Illinois tax avoidance;
or
(iv) an item of interest paid, accrued, or
incurred, directly or indirectly, to a person if
the taxpayer establishes by clear and convincing
evidence that the adjustments are unreasonable; or
if the taxpayer and the Director agree in writing
to the application or use of an alternative method
of apportionment under Section 304(f).
For taxable years ending on or after December 31,
2025, this paragraph shall not apply to the following:
(i) an item of interest paid, accrued, or
incurred, directly or indirectly, to a person if
the taxpayer can establish, based on a
preponderance of the evidence, both of the
following:
(a) the person, during the same taxable
year, paid, accrued, or incurred, the interest
to a person that is not a related member, and
(b) the transaction giving rise to the
interest expense between the taxpayer and the
person did not have as a principal purpose the
avoidance of Illinois income tax, and is paid

HB4937 - 42 - LRB104 17741 HLH 31172 b
pursuant to a contract or agreement that
reflects an arm's-length interest rate and
terms; or
(ii) an item of interest paid, accrued, or
incurred, directly or indirectly, to a person if
the taxpayer establishes by clear and convincing
evidence that the adjustments are unreasonable; or
if the taxpayer and the Director agree in writing
to the application or use of an alternative method
of apportionment under Section 304(f).
Nothing in this subsection shall preclude the
Director from making any other adjustment otherwise
allowed under Section 404 of this Act for any tax year
beginning after the effective date of this amendment
provided such adjustment is made pursuant to
regulation adopted by the Department and such
regulations provide methods and standards by which the
Department will utilize its authority under Section
404 of this Act;
(E-13) An amount equal to the amount of intangible
expenses and costs otherwise allowed as a deduction in
computing base income, and that were paid, accrued, or
incurred, directly or indirectly, (i) for taxable
years ending on or after December 31, 2004, to a
foreign person who would be a member of the same
unitary business group but for the fact that the

HB4937 - 43 - LRB104 17741 HLH 31172 b
foreign person's business activity outside the United
States is 80% or more of that person's total business
activity and (ii) for taxable years ending on or after
December 31, 2008, to a person who would be a member of
the same unitary business group but for the fact that
the person is prohibited under Section 1501(a)(27)
from being included in the unitary business group
because he or she is ordinarily required to apportion
business income under different subsections of Section
304. The addition modification required by this
subparagraph shall be reduced to the extent that
dividends were included in base income of the unitary
group for the same taxable year and received by the
taxpayer or by a member of the taxpayer's unitary
business group (including amounts included in gross
income pursuant to Sections 951 through 964 of the
Internal Revenue Code and amounts included in gross
income under Section 78 of the Internal Revenue Code)
with respect to the stock of the same person to whom
the intangible expenses and costs were directly or
indirectly paid, incurred, or accrued. The preceding
sentence shall not apply to the extent that the same
dividends caused a reduction to the addition
modification required under Section 203(b)(2)(E-12) of
this Act. As used in this subparagraph, the term
"intangible expenses and costs" includes (1) expenses,

HB4937 - 44 - LRB104 17741 HLH 31172 b
losses, and costs for, or related to, the direct or
indirect acquisition, use, maintenance or management,
ownership, sale, exchange, or any other disposition of
intangible property; (2) losses incurred, directly or
indirectly, from factoring transactions or discounting
transactions; (3) royalty, patent, technical, and
copyright fees; (4) licensing fees; and (5) other
similar expenses and costs. For purposes of this
subparagraph, "intangible property" includes patents,
patent applications, trade names, trademarks, service
marks, copyrights, mask works, trade secrets, and
similar types of intangible assets.
This For taxable years ending before December 31,
2025, this paragraph shall not apply to the following:
(i) any item of intangible expenses or costs
paid, accrued, or incurred, directly or
indirectly, from a transaction with a person who
is subject in a foreign country or state, other
than a state which requires mandatory unitary
reporting, to a tax on or measured by net income
with respect to such item; or
(ii) any item of intangible expense or cost
paid, accrued, or incurred, directly or
indirectly, if the taxpayer can establish, based
on a preponderance of the evidence, both of the
following:

HB4937 - 45 - LRB104 17741 HLH 31172 b
(a) the person during the same taxable
year paid, accrued, or incurred, the
intangible expense or cost to a person that is
not a related member, and
(b) the transaction giving rise to the
intangible expense or cost between the
taxpayer and the person did not have as a
principal purpose the avoidance of Illinois
income tax, and is paid pursuant to a contract
or agreement that reflects arm's-length terms;
or
(iii) any item of intangible expense or cost
paid, accrued, or incurred, directly or
indirectly, from a transaction with a person if
the taxpayer establishes by clear and convincing
evidence, that the adjustments are unreasonable;
or if the taxpayer and the Director agree in
writing to the application or use of an
alternative method of apportionment under Section
304(f). ;
For taxable years ending on or after December 31,
2025, this paragraph shall not apply to the following:
(i) any item of intangible expense or cost
paid, accrued, or incurred, directly or
indirectly, if the taxpayer can establish, based
on a preponderance of the evidence, both of the

HB4937 - 46 - LRB104 17741 HLH 31172 b
following:
(a) the person during the same taxable
year paid, accrued, or incurred, the
intangible expense or cost to a person that is
not a related member, and
(b) the transaction giving rise to the
intangible expense or cost between the
taxpayer and the person did not have as a
principal purpose the avoidance of Illinois
income tax, and is paid pursuant to a contract
or agreement that reflects arm's-length terms;
or
(ii) any item of intangible expense or cost
paid, accrued, or incurred, directly or
indirectly, from a transaction with a person if
the taxpayer establishes by clear and convincing
evidence, that the adjustments are unreasonable;
or if the taxpayer and the Director agree in
writing to the application or use of an
alternative method of apportionment under Section
304(f).
Nothing in this subsection shall preclude the
Director from making any other adjustment otherwise
allowed under Section 404 of this Act for any tax year
beginning after the effective date of this amendment
provided such adjustment is made pursuant to

HB4937 - 47 - LRB104 17741 HLH 31172 b
regulation adopted by the Department and such
regulations provide methods and standards by which the
Department will utilize its authority under Section
404 of this Act;
(E-14) For taxable years ending on or after
December 31, 2008, an amount equal to the amount of
insurance premium expenses and costs otherwise allowed
as a deduction in computing base income, and that were
paid, accrued, or incurred, directly or indirectly, to
a person who would be a member of the same unitary
business group but for the fact that the person is
prohibited under Section 1501(a)(27) from being
included in the unitary business group because he or
she is ordinarily required to apportion business
income under different subsections of Section 304. The
addition modification required by this subparagraph
shall be reduced to the extent that dividends were
included in base income of the unitary group for the
same taxable year and received by the taxpayer or by a
member of the taxpayer's unitary business group
(including amounts included in gross income under
Sections 951 through 964 of the Internal Revenue Code
and amounts included in gross income under Section 78
of the Internal Revenue Code) with respect to the
stock of the same person to whom the premiums and costs
were directly or indirectly paid, incurred, or

HB4937 - 48 - LRB104 17741 HLH 31172 b
accrued. The preceding sentence does not apply to the
extent that the same dividends caused a reduction to
the addition modification required under Section
203(b)(2)(E-12) or Section 203(b)(2)(E-13) of this
Act;
(E-15) For taxable years beginning after December
31, 2008, any deduction for dividends paid by a
captive real estate investment trust that is allowed
to a real estate investment trust under Section
857(b)(2)(B) of the Internal Revenue Code for
dividends paid;
(E-16) An amount equal to the credit allowable to
the taxpayer under Section 218(a) of this Act,
determined without regard to Section 218(c) of this
Act;
(E-17) For taxable years ending on or after
December 31, 2017, an amount equal to the deduction
allowed under Section 199 of the Internal Revenue Code
for the taxable year;
(E-18) for taxable years beginning after December
31, 2018, an amount equal to the deduction allowed
under Section 250(a)(1)(A) of the Internal Revenue
Code for the taxable year;
(E-19) for taxable years ending on or after June
30, 2021, an amount equal to the deduction allowed
under Section 250(a)(1)(B)(i) of the Internal Revenue

HB4937 - 49 - LRB104 17741 HLH 31172 b
Code for the taxable year;
(E-20) for taxable years ending on or after June
30, 2021, an amount equal to the deduction allowed
under Sections 243(e) and 245A(a) of the Internal
Revenue Code for the taxable year;
(E-21) the amount that is claimed as a federal
deduction when computing the taxpayer's federal
taxable income for the taxable year and that is
attributable to an endowment gift for which the
taxpayer receives a credit under the Illinois Gives
Tax Credit Act;
and by deducting from the total so obtained the sum of the
following amounts:
(F) An amount equal to the amount of any tax
imposed by this Act which was refunded to the taxpayer
and included in such total for the taxable year;
(G) An amount equal to any amount included in such
total under Section 78 of the Internal Revenue Code;
(H) In the case of a regulated investment company,
an amount equal to the amount of exempt interest
dividends as defined in subsection (b)(5) of Section
852 of the Internal Revenue Code, paid to shareholders
for the taxable year;
(I) With the exception of any amounts subtracted
under subparagraph (J), an amount equal to the sum of
all amounts disallowed as deductions by (i) Sections

HB4937 - 50 - LRB104 17741 HLH 31172 b
171(a)(2) and 265(a)(2) and amounts disallowed as
interest expense by Section 291(a)(3) of the Internal
Revenue Code, and all amounts of expenses allocable to
interest and disallowed as deductions by Section
265(a)(1) of the Internal Revenue Code; and (ii) for
taxable years ending on or after August 13, 1999,
Sections 171(a)(2), 265, 280C, 291(a)(3), and
832(b)(5)(B)(i) of the Internal Revenue Code, plus,
for tax years ending on or after December 31, 2011,
amounts disallowed as deductions by Section 45G(e)(3)
of the Internal Revenue Code and, for taxable years
ending on or after December 31, 2008, any amount
included in gross income under Section 87 of the
Internal Revenue Code and the policyholders' share of
tax-exempt interest of a life insurance company under
Section 807(a)(2)(B) of the Internal Revenue Code (in
the case of a life insurance company with gross income
from a decrease in reserves for the tax year) or
Section 807(b)(1)(B) of the Internal Revenue Code (in
the case of a life insurance company allowed a
deduction for an increase in reserves for the tax
year); the provisions of this subparagraph are exempt
from the provisions of Section 250;
(J) An amount equal to all amounts included in
such total which are exempt from taxation by this
State either by reason of its statutes or Constitution

HB4937 - 51 - LRB104 17741 HLH 31172 b
or by reason of the Constitution, treaties or statutes
of the United States; provided that, in the case of any
statute of this State that exempts income derived from
bonds or other obligations from the tax imposed under
this Act, the amount exempted shall be the interest
net of bond premium amortization;
(K) An amount equal to those dividends included in
such total which were paid by a corporation which
conducts business operations in a River Edge
Redevelopment Zone or zones created under the River
Edge Redevelopment Zone Act and conducts substantially
all of its operations in a River Edge Redevelopment
Zone or zones. This subparagraph (K) is exempt from
the provisions of Section 250;
(L) An amount equal to those dividends included in
such total that were paid by a corporation that
conducts business operations in a federally designated
Foreign Trade Zone or Sub-Zone and that is designated
a High Impact Business located in Illinois; provided
that dividends eligible for the deduction provided in
subparagraph (K) of paragraph 2 of this subsection
shall not be eligible for the deduction provided under
this subparagraph (L);
(M) For any taxpayer that is a financial
organization within the meaning of Section 304(c) of
this Act, an amount included in such total as interest

HB4937 - 52 - LRB104 17741 HLH 31172 b
income from a loan or loans made by such taxpayer to a
borrower, to the extent that such a loan is secured by
property which is eligible for the River Edge
Redevelopment Zone Investment Credit. To determine the
portion of a loan or loans that is secured by property
eligible for a Section 201(f) investment credit to the
borrower, the entire principal amount of the loan or
loans between the taxpayer and the borrower should be
divided into the basis of the Section 201(f)
investment credit property which secures the loan or
loans, using for this purpose the original basis of
such property on the date that it was placed in service
in the River Edge Redevelopment Zone. The subtraction
modification available to the taxpayer in any year
under this subsection shall be that portion of the
total interest paid by the borrower with respect to
such loan attributable to the eligible property as
calculated under the previous sentence. This
subparagraph (M) is exempt from the provisions of
Section 250;
(M-1) For any taxpayer that is a financial
organization within the meaning of Section 304(c) of
this Act, an amount included in such total as interest
income from a loan or loans made by such taxpayer to a
borrower, to the extent that such a loan is secured by
property which is eligible for the High Impact

HB4937 - 53 - LRB104 17741 HLH 31172 b
Business Investment Credit. To determine the portion
of a loan or loans that is secured by property eligible
for a Section 201(h) investment credit to the
borrower, the entire principal amount of the loan or
loans between the taxpayer and the borrower should be
divided into the basis of the Section 201(h)
investment credit property which secures the loan or
loans, using for this purpose the original basis of
such property on the date that it was placed in service
in a federally designated Foreign Trade Zone or
Sub-Zone located in Illinois. No taxpayer that is
eligible for the deduction provided in subparagraph
(M) of paragraph (2) of this subsection shall be
eligible for the deduction provided under this
subparagraph (M-1). The subtraction modification
available to taxpayers in any year under this
subsection shall be that portion of the total interest
paid by the borrower with respect to such loan
attributable to the eligible property as calculated
under the previous sentence;
(N) Two times any contribution made during the
taxable year to a designated zone organization to the
extent that the contribution (i) qualifies as a
charitable contribution under subsection (c) of
Section 170 of the Internal Revenue Code and (ii)
must, by its terms, be used for a project approved by

HB4937 - 54 - LRB104 17741 HLH 31172 b
the Department of Commerce and Economic Opportunity
under Section 11 of the Illinois Enterprise Zone Act
or under Section 10-10 of the River Edge Redevelopment
Zone Act. This subparagraph (N) is exempt from the
provisions of Section 250;
(O) An amount equal to: (i) 85% for taxable years
ending on or before December 31, 1992, or, a
percentage equal to the percentage allowable under
Section 243(a)(1) of the Internal Revenue Code of 1986
for taxable years ending after December 31, 1992, of
the amount by which dividends included in taxable
income and received from a corporation that is not
created or organized under the laws of the United
States or any state or political subdivision thereof,
including, for taxable years ending on or after
December 31, 1988, dividends received or deemed
received or paid or deemed paid under Sections 951
through 965 of the Internal Revenue Code, exceed the
amount of the modification provided under subparagraph
(G) of paragraph (2) of this subsection (b) which is
related to such dividends, and including, for taxable
years ending on or after December 31, 2008, dividends
received from a captive real estate investment trust;
plus (ii) 100% of the amount by which dividends,
included in taxable income and received, including,
for taxable years ending on or after December 31,

HB4937 - 55 - LRB104 17741 HLH 31172 b
1988, dividends received or deemed received or paid or
deemed paid under Sections 951 through 964 of the
Internal Revenue Code and including, for taxable years
ending on or after December 31, 2008, dividends
received from a captive real estate investment trust,
from any such corporation specified in clause (i) that
would but for the provisions of Section 1504(b)(3) of
the Internal Revenue Code be treated as a member of the
affiliated group which includes the dividend
recipient, exceed the amount of the modification
provided under subparagraph (G) of paragraph (2) of
this subsection (b) which is related to such
dividends. For taxable years ending on or after June
30, 2021, (i) for purposes of this subparagraph, the
term "dividend" does not include any amount treated as
a dividend under Section 1248 of the Internal Revenue
Code, and (ii) this subparagraph shall not apply to
dividends for which a deduction is allowed under
Section 245(a) of the Internal Revenue Code. For
taxable years ending on or after December 31, 2025,
50% of the amount of global intangible low-taxed
income or net controlled foreign corporation (CFC)
tested income received or deemed received or paid or
deemed paid under Sections 951 through 965 of the
Internal Revenue Code. This subparagraph (O) is exempt
from the provisions of Section 250 of this Act;

HB4937 - 56 - LRB104 17741 HLH 31172 b
(P) An amount equal to any contribution made to a
job training project established pursuant to the Tax
Increment Allocation Redevelopment Act;
(Q) An amount equal to the amount of the deduction
used to compute the federal income tax credit for
restoration of substantial amounts held under claim of
right for the taxable year pursuant to Section 1341 of
the Internal Revenue Code;
(R) On and after July 20, 1999, in the case of an
attorney-in-fact with respect to whom an interinsurer
or a reciprocal insurer has made the election under
Section 835 of the Internal Revenue Code, 26 U.S.C.
835, an amount equal to the excess, if any, of the
amounts paid or incurred by that interinsurer or
reciprocal insurer in the taxable year to the
attorney-in-fact over the deduction allowed to that
interinsurer or reciprocal insurer with respect to the
attorney-in-fact under Section 835(b) of the Internal
Revenue Code for the taxable year; the provisions of
this subparagraph are exempt from the provisions of
Section 250;
(S) For taxable years ending on or after December
31, 1997, in the case of a Subchapter S corporation, an
amount equal to all amounts of income allocable to a
shareholder subject to the Personal Property Tax
Replacement Income Tax imposed by subsections (c) and

HB4937 - 57 - LRB104 17741 HLH 31172 b
(d) of Section 201 of this Act, including amounts
allocable to organizations exempt from federal income
tax by reason of Section 501(a) of the Internal
Revenue Code. This subparagraph (S) is exempt from the
provisions of Section 250;
(T) For taxable years 2001 and thereafter, for the
taxable year in which the bonus depreciation deduction
is taken on the taxpayer's federal income tax return
under subsection (k) or (n) of Section 168 of the
Internal Revenue Code and for each applicable taxable
year thereafter, an amount equal to "x", where:
(1) "y" equals the amount of the depreciation
deduction taken for the taxable year on the
taxpayer's federal income tax return on property
for which the bonus depreciation deduction was
taken in any year under subsection (k) or (n) of
Section 168 of the Internal Revenue Code, but not
including the bonus depreciation deduction;
(2) for taxable years ending on or before
December 31, 2005, "x" equals "y" multiplied by 30
and then divided by 70 (or "y" multiplied by
0.429); and
(3) for taxable years ending after December
31, 2005:
(i) for property on which a bonus
depreciation deduction of 30% of the adjusted

HB4937 - 58 - LRB104 17741 HLH 31172 b
basis was taken, "x" equals "y" multiplied by
30 and then divided by 70 (or "y" multiplied
by 0.429);
(ii) for property on which a bonus
depreciation deduction of 50% of the adjusted
basis was taken, "x" equals "y" multiplied by
1.0;
(iii) for property on which a bonus
depreciation deduction of 100% of the adjusted
basis was taken in a taxable year ending on or
after December 31, 2021, "x" equals the
depreciation deduction that would be allowed
on that property if the taxpayer had made the
election under Section 168(k)(7) or Section
168(n)(6) of the Internal Revenue Code to not
claim bonus depreciation on that property; and
(iv) for property on which a bonus
depreciation deduction of a percentage other
than 30%, 50% or 100% of the adjusted basis
was taken in a taxable year ending on or after
December 31, 2021, "x" equals "y" multiplied
by 100 times the percentage bonus depreciation
on the property (that is, 100(bonus%)) and
then divided by 100 times 1 minus the
percentage bonus depreciation on the property
(that is, 100(1-bonus%)).

HB4937 - 59 - LRB104 17741 HLH 31172 b
The aggregate amount deducted under this
subparagraph in all taxable years for any one piece of
property may not exceed the amount of the bonus
depreciation deduction taken on that property on the
taxpayer's federal income tax return under subsection
(k) or (n) of Section 168 of the Internal Revenue Code.
This subparagraph (T) is exempt from the provisions of
Section 250;
(U) If the taxpayer sells, transfers, abandons, or
otherwise disposes of property for which the taxpayer
was required in any taxable year to make an addition
modification under subparagraph (E-10), then an amount
equal to that addition modification.
If the taxpayer continues to own property through
the last day of the last tax year for which a
subtraction is allowed with respect to that property
under subparagraph (T) and for which the taxpayer was
required in any taxable year to make an addition
modification under subparagraph (E-10), then an amount
equal to that addition modification.
The taxpayer is allowed to take the deduction
under this subparagraph only once with respect to any
one piece of property.
This subparagraph (U) is exempt from the
provisions of Section 250;
(V) The amount of: (i) any interest income (net of

HB4937 - 60 - LRB104 17741 HLH 31172 b
the deductions allocable thereto) taken into account
for the taxable year with respect to a transaction
with a taxpayer that is required to make an addition
modification with respect to such transaction under
Section 203(a)(2)(D-17), 203(b)(2)(E-12),
203(c)(2)(G-12), or 203(d)(2)(D-7), but not to exceed
the amount of such addition modification, (ii) any
income from intangible property (net of the deductions
allocable thereto) taken into account for the taxable
year with respect to a transaction with a taxpayer
that is required to make an addition modification with
respect to such transaction under Section
203(a)(2)(D-18), 203(b)(2)(E-13), 203(c)(2)(G-13), or
203(d)(2)(D-8), but not to exceed the amount of such
addition modification, and (iii) any insurance premium
income (net of deductions allocable thereto) taken
into account for the taxable year with respect to a
transaction with a taxpayer that is required to make
an addition modification with respect to such
transaction under Section 203(a)(2)(D-19), Section
203(b)(2)(E-14), Section 203(c)(2)(G-14), or Section
203(d)(2)(D-9), but not to exceed the amount of that
addition modification. This subparagraph (V) is exempt
from the provisions of Section 250;
(W) An amount equal to the interest income taken
into account for the taxable year (net of the

HB4937 - 61 - LRB104 17741 HLH 31172 b
deductions allocable thereto) with respect to
transactions with (i) a foreign person who would be a
member of the taxpayer's unitary business group but
for the fact that the foreign person's business
activity outside the United States is 80% or more of
that person's total business activity and (ii) for
taxable years ending on or after December 31, 2008, to
a person who would be a member of the same unitary
business group but for the fact that the person is
prohibited under Section 1501(a)(27) from being
included in the unitary business group because he or
she is ordinarily required to apportion business
income under different subsections of Section 304, but
not to exceed the addition modification required to be
made for the same taxable year under Section
203(b)(2)(E-12) for interest paid, accrued, or
incurred, directly or indirectly, to the same person.
This subparagraph (W) is exempt from the provisions of
Section 250;
(X) An amount equal to the income from intangible
property taken into account for the taxable year (net
of the deductions allocable thereto) with respect to
transactions with (i) a foreign person who would be a
member of the taxpayer's unitary business group but
for the fact that the foreign person's business
activity outside the United States is 80% or more of

HB4937 - 62 - LRB104 17741 HLH 31172 b
that person's total business activity and (ii) for
taxable years ending on or after December 31, 2008, to
a person who would be a member of the same unitary
business group but for the fact that the person is
prohibited under Section 1501(a)(27) from being
included in the unitary business group because he or
she is ordinarily required to apportion business
income under different subsections of Section 304, but
not to exceed the addition modification required to be
made for the same taxable year under Section
203(b)(2)(E-13) for intangible expenses and costs
paid, accrued, or incurred, directly or indirectly, to
the same foreign person. This subparagraph (X) is
exempt from the provisions of Section 250;
(Y) For taxable years ending on or after December
31, 2011, in the case of a taxpayer who was required to
add back any insurance premiums under Section
203(b)(2)(E-14), such taxpayer may elect to subtract
that part of a reimbursement received from the
insurance company equal to the amount of the expense
or loss (including expenses incurred by the insurance
company) that would have been taken into account as a
deduction for federal income tax purposes if the
expense or loss had been uninsured. If a taxpayer
makes the election provided for by this subparagraph
(Y), the insurer to which the premiums were paid must

HB4937 - 63 - LRB104 17741 HLH 31172 b
add back to income the amount subtracted by the
taxpayer pursuant to this subparagraph (Y). This
subparagraph (Y) is exempt from the provisions of
Section 250;
(Z) The difference between the nondeductible
controlled foreign corporation dividends under Section
965(e)(3) of the Internal Revenue Code over the
taxable income of the taxpayer, computed without
regard to Section 965(e)(2)(A) of the Internal Revenue
Code, and without regard to any net operating loss
deduction. This subparagraph (Z) is exempt from the
provisions of Section 250; and
(AA) For taxable years beginning on or after
January 1, 2023, for any cannabis establishment
operating in this State and licensed under the
Cannabis Regulation and Tax Act or any cannabis
cultivation center or medical cannabis dispensing
organization operating in this State and licensed
under the Compassionate Use of Medical Cannabis
Program Act, an amount equal to the deductions that
were disallowed under Section 280E of the Internal
Revenue Code for the taxable year and that would not be
added back under this subsection. The provisions of
this subparagraph (AA) are exempt from the provisions
of Section 250.
(3) Special rule. For purposes of paragraph (2)(A),

HB4937 - 64 - LRB104 17741 HLH 31172 b
"gross income" in the case of a life insurance company,
for tax years ending on and after December 31, 1994, and
prior to December 31, 2011, shall mean the gross
investment income for the taxable year and, for tax years
ending on or after December 31, 2011, shall mean all
amounts included in life insurance gross income under
Section 803(a)(3) of the Internal Revenue Code.
(c) Trusts and estates.
(1) In general. In the case of a trust or estate, base
income means an amount equal to the taxpayer's taxable
income for the taxable year as modified by paragraph (2).
(2) Modifications. Subject to the provisions of
paragraph (3), the taxable income referred to in paragraph
(1) shall be modified by adding thereto the sum of the
following amounts:
(A) An amount equal to all amounts paid or accrued
to the taxpayer as interest or dividends during the
taxable year to the extent excluded from gross income
in the computation of taxable income;
(B) In the case of (i) an estate, $600; (ii) a
trust which, under its governing instrument, is
required to distribute all of its income currently,
$300; and (iii) any other trust, $100, but in each such
case, only to the extent such amount was deducted in
the computation of taxable income;

HB4937 - 65 - LRB104 17741 HLH 31172 b
(C) An amount equal to the amount of tax imposed by
this Act to the extent deducted from gross income in
the computation of taxable income for the taxable
year;
(D) The amount of any net operating loss deduction
taken in arriving at taxable income, other than a net
operating loss carried forward from a taxable year
ending prior to December 31, 1986;
(E) For taxable years in which a net operating
loss carryback or carryforward from a taxable year
ending prior to December 31, 1986 is an element of
taxable income under paragraph (1) of subsection (e)
or subparagraph (E) of paragraph (2) of subsection
(e), the amount by which addition modifications other
than those provided by this subparagraph (E) exceeded
subtraction modifications in such taxable year, with
the following limitations applied in the order that
they are listed:
(i) the addition modification relating to the
net operating loss carried back or forward to the
taxable year from any taxable year ending prior to
December 31, 1986 shall be reduced by the amount
of addition modification under this subparagraph
(E) which related to that net operating loss and
which was taken into account in calculating the
base income of an earlier taxable year, and

HB4937 - 66 - LRB104 17741 HLH 31172 b
(ii) the addition modification relating to the
net operating loss carried back or forward to the
taxable year from any taxable year ending prior to
December 31, 1986 shall not exceed the amount of
such carryback or carryforward;
For taxable years in which there is a net
operating loss carryback or carryforward from more
than one other taxable year ending prior to December
31, 1986, the addition modification provided in this
subparagraph (E) shall be the sum of the amounts
computed independently under the preceding provisions
of this subparagraph (E) for each such taxable year;
(F) For taxable years ending on or after January
1, 1989, an amount equal to the tax deducted pursuant
to Section 164 of the Internal Revenue Code if the
trust or estate is claiming the same tax for purposes
of the Illinois foreign tax credit under Section 601
of this Act;
(G) An amount equal to the amount of the capital
gain deduction allowable under the Internal Revenue
Code, to the extent deducted from gross income in the
computation of taxable income;
(G-5) For taxable years ending after December 31,
1997, an amount equal to any eligible remediation
costs that the trust or estate deducted in computing
adjusted gross income and for which the trust or

HB4937 - 67 - LRB104 17741 HLH 31172 b
estate claims a credit under subsection (l) of Section
201;
(G-10) For taxable years 2001 through 2025, an
amount equal to the bonus depreciation deduction taken
on the taxpayer's federal income tax return for the
taxable year under subsection (k) of Section 168 of
the Internal Revenue Code; for taxable years 2026 and
thereafter, an amount equal to the bonus depreciation
deduction taken on the taxpayer's federal income tax
return for the taxable year under subsection (k) or
(n) of Section 168 of the Internal Revenue Code; and
(G-11) If the taxpayer sells, transfers, abandons,
or otherwise disposes of property for which the
taxpayer was required in any taxable year to make an
addition modification under subparagraph (G-10), then
an amount equal to the aggregate amount of the
deductions taken in all taxable years under
subparagraph (R) with respect to that property.
If the taxpayer continues to own property through
the last day of the last tax year for which a
subtraction is allowed with respect to that property
under subparagraph (R) and for which the taxpayer was
allowed in any taxable year to make a subtraction
modification under subparagraph (R), then an amount
equal to that subtraction modification.
The taxpayer is required to make the addition

HB4937 - 68 - LRB104 17741 HLH 31172 b
modification under this subparagraph only once with
respect to any one piece of property;
(G-12) An amount equal to the amount otherwise
allowed as a deduction in computing base income for
interest paid, accrued, or incurred, directly or
indirectly, (i) for taxable years ending on or after
December 31, 2004, to a foreign person who would be a
member of the same unitary business group but for the
fact that the foreign person's business activity
outside the United States is 80% or more of the foreign
person's total business activity and (ii) for taxable
years ending on or after December 31, 2008, to a person
who would be a member of the same unitary business
group but for the fact that the person is prohibited
under Section 1501(a)(27) from being included in the
unitary business group because he or she is ordinarily
required to apportion business income under different
subsections of Section 304. The addition modification
required by this subparagraph shall be reduced to the
extent that dividends were included in base income of
the unitary group for the same taxable year and
received by the taxpayer or by a member of the
taxpayer's unitary business group (including amounts
included in gross income pursuant to Sections 951
through 964 of the Internal Revenue Code and amounts
included in gross income under Section 78 of the

HB4937 - 69 - LRB104 17741 HLH 31172 b
Internal Revenue Code) with respect to the stock of
the same person to whom the interest was paid,
accrued, or incurred. For taxable years ending on and
after December 31, 2025, for purposes of applying this
paragraph in the case of a taxpayer to which Section
163(j) of the Internal Revenue Code applies for the
taxable year, the reduction in the amount of interest
for which a deduction is allowed by reason of Section
163(j) shall be treated as allocable first to persons
who are not foreign persons referred to in this
paragraph and then to such foreign persons.
For taxable years ending before December 31, 2025,
this paragraph shall not apply to the following:
(i) an item of interest paid, accrued, or
incurred, directly or indirectly, to a person who
is subject in a foreign country or state, other
than a state which requires mandatory unitary
reporting, to a tax on or measured by net income
with respect to such interest; or
(ii) an item of interest paid, accrued, or
incurred, directly or indirectly, to a person if
the taxpayer can establish, based on a
preponderance of the evidence, both of the
following:
(a) the person, during the same taxable
year, paid, accrued, or incurred, the interest

HB4937 - 70 - LRB104 17741 HLH 31172 b
to a person that is not a related member, and
(b) the transaction giving rise to the
interest expense between the taxpayer and the
person did not have as a principal purpose the
avoidance of Illinois income tax, and is paid
pursuant to a contract or agreement that
reflects an arm's-length interest rate and
terms; or
(iii) the taxpayer can establish, based on
clear and convincing evidence, that the interest
paid, accrued, or incurred relates to a contract
or agreement entered into at arm's-length rates
and terms and the principal purpose for the
payment is not federal or Illinois tax avoidance;
or
(iv) an item of interest paid, accrued, or
incurred, directly or indirectly, to a person if
the taxpayer establishes by clear and convincing
evidence that the adjustments are unreasonable; or
if the taxpayer and the Director agree in writing
to the application or use of an alternative method
of apportionment under Section 304(f).
For taxable years ending on or after December 31,
2025, this paragraph shall not apply to the following:
(i) an item of interest paid, accrued, or
incurred, directly or indirectly, to a person if

HB4937 - 71 - LRB104 17741 HLH 31172 b
the taxpayer can establish, based on a
preponderance of the evidence, both of the
following:
(a) the person, during the same taxable
year, paid, accrued, or incurred, the interest
to a person that is not a related member, and
(b) the transaction giving rise to the
interest expense between the taxpayer and the
person did not have as a principal purpose the
avoidance of Illinois income tax, and is paid
pursuant to a contract or agreement that
reflects an arm's-length interest rate and
terms; or
(ii) an item of interest paid, accrued, or
incurred, directly or indirectly, to a person if
the taxpayer establishes by clear and convincing
evidence that the adjustments are unreasonable; or
if the taxpayer and the Director agree in writing
to the application or use of an alternative method
of apportionment under Section 304(f).
Nothing in this subsection shall preclude the
Director from making any other adjustment otherwise
allowed under Section 404 of this Act for any tax year
beginning after the effective date of this amendment
provided such adjustment is made pursuant to
regulation adopted by the Department and such

HB4937 - 72 - LRB104 17741 HLH 31172 b
regulations provide methods and standards by which the
Department will utilize its authority under Section
404 of this Act;
(G-13) An amount equal to the amount of intangible
expenses and costs otherwise allowed as a deduction in
computing base income, and that were paid, accrued, or
incurred, directly or indirectly, (i) for taxable
years ending on or after December 31, 2004, to a
foreign person who would be a member of the same
unitary business group but for the fact that the
foreign person's business activity outside the United
States is 80% or more of that person's total business
activity and (ii) for taxable years ending on or after
December 31, 2008, to a person who would be a member of
the same unitary business group but for the fact that
the person is prohibited under Section 1501(a)(27)
from being included in the unitary business group
because he or she is ordinarily required to apportion
business income under different subsections of Section
304. The addition modification required by this
subparagraph shall be reduced to the extent that
dividends were included in base income of the unitary
group for the same taxable year and received by the
taxpayer or by a member of the taxpayer's unitary
business group (including amounts included in gross
income pursuant to Sections 951 through 964 of the

HB4937 - 73 - LRB104 17741 HLH 31172 b
Internal Revenue Code and amounts included in gross
income under Section 78 of the Internal Revenue Code)
with respect to the stock of the same person to whom
the intangible expenses and costs were directly or
indirectly paid, incurred, or accrued. The preceding
sentence shall not apply to the extent that the same
dividends caused a reduction to the addition
modification required under Section 203(c)(2)(G-12) of
this Act. As used in this subparagraph, the term
"intangible expenses and costs" includes: (1)
expenses, losses, and costs for or related to the
direct or indirect acquisition, use, maintenance or
management, ownership, sale, exchange, or any other
disposition of intangible property; (2) losses
incurred, directly or indirectly, from factoring
transactions or discounting transactions; (3) royalty,
patent, technical, and copyright fees; (4) licensing
fees; and (5) other similar expenses and costs. For
purposes of this subparagraph, "intangible property"
includes patents, patent applications, trade names,
trademarks, service marks, copyrights, mask works,
trade secrets, and similar types of intangible assets.
This For taxable years ending before December 31,
2025, this paragraph shall not apply to the following:
(i) any item of intangible expenses or costs
paid, accrued, or incurred, directly or

HB4937 - 74 - LRB104 17741 HLH 31172 b
indirectly, from a transaction with a person who
is subject in a foreign country or state, other
than a state which requires mandatory unitary
reporting, to a tax on or measured by net income
with respect to such item; or
(ii) any item of intangible expense or cost
paid, accrued, or incurred, directly or
indirectly, if the taxpayer can establish, based
on a preponderance of the evidence, both of the
following:
(a) the person during the same taxable
year paid, accrued, or incurred, the
intangible expense or cost to a person that is
not a related member, and
(b) the transaction giving rise to the
intangible expense or cost between the
taxpayer and the person did not have as a
principal purpose the avoidance of Illinois
income tax, and is paid pursuant to a contract
or agreement that reflects arm's-length terms;
or
(iii) any item of intangible expense or cost
paid, accrued, or incurred, directly or
indirectly, from a transaction with a person if
the taxpayer establishes by clear and convincing
evidence, that the adjustments are unreasonable;

HB4937 - 75 - LRB104 17741 HLH 31172 b
or if the taxpayer and the Director agree in
writing to the application or use of an
alternative method of apportionment under Section
304(f). ;
For taxable years ending on or after December 31,
2025, this paragraph shall not apply to the following:
(i) any item of intangible expense or cost
paid, accrued, or incurred, directly or
indirectly, if the taxpayer can establish, based
on a preponderance of the evidence, both of the
following:
(a) the person during the same taxable
year paid, accrued, or incurred, the
intangible expense or cost to a person that is
not a related member, and
(b) the transaction giving rise to the
intangible expense or cost between the
taxpayer and the person did not have as a
principal purpose the avoidance of Illinois
income tax, and is paid pursuant to a contract
or agreement that reflects arm's-length terms;
or
(ii) any item of intangible expense or cost
paid, accrued, or incurred, directly or
indirectly, from a transaction with a person if
the taxpayer establishes by clear and convincing

HB4937 - 76 - LRB104 17741 HLH 31172 b
evidence, that the adjustments are unreasonable;
or if the taxpayer and the Director agree in
writing to the application or use of an
alternative method of apportionment under Section
304(f).
Nothing in this subsection shall preclude the
Director from making any other adjustment otherwise
allowed under Section 404 of this Act for any tax year
beginning after the effective date of this amendment
provided such adjustment is made pursuant to
regulation adopted by the Department and such
regulations provide methods and standards by which the
Department will utilize its authority under Section
404 of this Act;
(G-14) For taxable years ending on or after
December 31, 2008, an amount equal to the amount of
insurance premium expenses and costs otherwise allowed
as a deduction in computing base income, and that were
paid, accrued, or incurred, directly or indirectly, to
a person who would be a member of the same unitary
business group but for the fact that the person is
prohibited under Section 1501(a)(27) from being
included in the unitary business group because he or
she is ordinarily required to apportion business
income under different subsections of Section 304. The
addition modification required by this subparagraph

HB4937 - 77 - LRB104 17741 HLH 31172 b
shall be reduced to the extent that dividends were
included in base income of the unitary group for the
same taxable year and received by the taxpayer or by a
member of the taxpayer's unitary business group
(including amounts included in gross income under
Sections 951 through 964 of the Internal Revenue Code
and amounts included in gross income under Section 78
of the Internal Revenue Code) with respect to the
stock of the same person to whom the premiums and costs
were directly or indirectly paid, incurred, or
accrued. The preceding sentence does not apply to the
extent that the same dividends caused a reduction to
the addition modification required under Section
203(c)(2)(G-12) or Section 203(c)(2)(G-13) of this
Act;
(G-15) An amount equal to the credit allowable to
the taxpayer under Section 218(a) of this Act,
determined without regard to Section 218(c) of this
Act;
(G-16) For taxable years ending on or after
December 31, 2017, an amount equal to the deduction
allowed under Section 199 of the Internal Revenue Code
for the taxable year;
(G-17) the amount that is claimed as a federal
deduction when computing the taxpayer's federal
taxable income for the taxable year and that is

HB4937 - 78 - LRB104 17741 HLH 31172 b
attributable to an endowment gift for which the
taxpayer receives a credit under the Illinois Gives
Tax Credit Act;
and by deducting from the total so obtained the sum of the
following amounts:
(H) An amount equal to all amounts included in
such total pursuant to the provisions of Sections
402(a), 402(c), 403(a), 403(b), 406(a), 407(a) and 408
of the Internal Revenue Code or included in such total
as distributions under the provisions of any
retirement or disability plan for employees of any
governmental agency or unit, or retirement payments to
retired partners, which payments are excluded in
computing net earnings from self employment by Section
1402 of the Internal Revenue Code and regulations
adopted pursuant thereto;
(I) The valuation limitation amount;
(J) An amount equal to the amount of any tax
imposed by this Act which was refunded to the taxpayer
and included in such total for the taxable year;
(K) An amount equal to all amounts included in
taxable income as modified by subparagraphs (A), (B),
(C), (D), (E), (F) and (G) which are exempt from
taxation by this State either by reason of its
statutes or Constitution or by reason of the
Constitution, treaties or statutes of the United

HB4937 - 79 - LRB104 17741 HLH 31172 b
States; provided that, in the case of any statute of
this State that exempts income derived from bonds or
other obligations from the tax imposed under this Act,
the amount exempted shall be the interest net of bond
premium amortization;
(L) With the exception of any amounts subtracted
under subparagraph (K), an amount equal to the sum of
all amounts disallowed as deductions by (i) Sections
171(a)(2) and 265(a)(2) of the Internal Revenue Code,
and all amounts of expenses allocable to interest and
disallowed as deductions by Section 265(a)(1) of the
Internal Revenue Code; and (ii) for taxable years
ending on or after August 13, 1999, Sections
171(a)(2), 265, 280C, and 832(b)(5)(B)(i) of the
Internal Revenue Code, plus, (iii) for taxable years
ending on or after December 31, 2011, Section
45G(e)(3) of the Internal Revenue Code and, for
taxable years ending on or after December 31, 2008,
any amount included in gross income under Section 87
of the Internal Revenue Code; the provisions of this
subparagraph are exempt from the provisions of Section
250;
(M) An amount equal to those dividends included in
such total which were paid by a corporation which
conducts business operations in a River Edge
Redevelopment Zone or zones created under the River

HB4937 - 80 - LRB104 17741 HLH 31172 b
Edge Redevelopment Zone Act and conducts substantially
all of its operations in a River Edge Redevelopment
Zone or zones. This subparagraph (M) is exempt from
the provisions of Section 250;
(N) An amount equal to any contribution made to a
job training project established pursuant to the Tax
Increment Allocation Redevelopment Act;
(O) An amount equal to those dividends included in
such total that were paid by a corporation that
conducts business operations in a federally designated
Foreign Trade Zone or Sub-Zone and that is designated
a High Impact Business located in Illinois; provided
that dividends eligible for the deduction provided in
subparagraph (M) of paragraph (2) of this subsection
shall not be eligible for the deduction provided under
this subparagraph (O);
(P) An amount equal to the amount of the deduction
used to compute the federal income tax credit for
restoration of substantial amounts held under claim of
right for the taxable year pursuant to Section 1341 of
the Internal Revenue Code;
(Q) For taxable year 1999 and thereafter, an
amount equal to the amount of any (i) distributions,
to the extent includible in gross income for federal
income tax purposes, made to the taxpayer because of
his or her status as a victim of persecution for racial

HB4937 - 81 - LRB104 17741 HLH 31172 b
or religious reasons by Nazi Germany or any other Axis
regime or as an heir of the victim and (ii) items of
income, to the extent includible in gross income for
federal income tax purposes, attributable to, derived
from or in any way related to assets stolen from,
hidden from, or otherwise lost to a victim of
persecution for racial or religious reasons by Nazi
Germany or any other Axis regime immediately prior to,
during, and immediately after World War II, including,
but not limited to, interest on the proceeds
receivable as insurance under policies issued to a
victim of persecution for racial or religious reasons
by Nazi Germany or any other Axis regime by European
insurance companies immediately prior to and during
World War II; provided, however, this subtraction from
federal adjusted gross income does not apply to assets
acquired with such assets or with the proceeds from
the sale of such assets; provided, further, this
paragraph shall only apply to a taxpayer who was the
first recipient of such assets after their recovery
and who is a victim of persecution for racial or
religious reasons by Nazi Germany or any other Axis
regime or as an heir of the victim. The amount of and
the eligibility for any public assistance, benefit, or
similar entitlement is not affected by the inclusion
of items (i) and (ii) of this paragraph in gross income

HB4937 - 82 - LRB104 17741 HLH 31172 b
for federal income tax purposes. This paragraph is
exempt from the provisions of Section 250;
(R) For taxable years 2001 and thereafter, for the
taxable year in which the bonus depreciation deduction
is taken on the taxpayer's federal income tax return
under subsection (k) or (n) of Section 168 of the
Internal Revenue Code and for each applicable taxable
year thereafter, an amount equal to "x", where:
(1) "y" equals the amount of the depreciation
deduction taken for the taxable year on the
taxpayer's federal income tax return on property
for which the bonus depreciation deduction was
taken in any year under subsection (k) or (n) of
Section 168 of the Internal Revenue Code, but not
including the bonus depreciation deduction;
(2) for taxable years ending on or before
December 31, 2005, "x" equals "y" multiplied by 30
and then divided by 70 (or "y" multiplied by
0.429); and
(3) for taxable years ending after December
31, 2005:
(i) for property on which a bonus
depreciation deduction of 30% of the adjusted
basis was taken, "x" equals "y" multiplied by
30 and then divided by 70 (or "y" multiplied
by 0.429);

HB4937 - 83 - LRB104 17741 HLH 31172 b
(ii) for property on which a bonus
depreciation deduction of 50% of the adjusted
basis was taken, "x" equals "y" multiplied by
1.0;
(iii) for property on which a bonus
depreciation deduction of 100% of the adjusted
basis was taken in a taxable year ending on or
after December 31, 2021, "x" equals the
depreciation deduction that would be allowed
on that property if the taxpayer had made the
election under Section 168(k)(7) or Section
168(n)(6) of the Internal Revenue Code to not
claim bonus depreciation on that property; and
(iv) for property on which a bonus
depreciation deduction of a percentage other
than 30%, 50% or 100% of the adjusted basis
was taken in a taxable year ending on or after
December 31, 2021, "x" equals "y" multiplied
by 100 times the percentage bonus depreciation
on the property (that is, 100(bonus%)) and
then divided by 100 times 1 minus the
percentage bonus depreciation on the property
(that is, 100(1-bonus%)).
The aggregate amount deducted under this
subparagraph in all taxable years for any one piece of
property may not exceed the amount of the bonus

HB4937 - 84 - LRB104 17741 HLH 31172 b
depreciation deduction taken on that property on the
taxpayer's federal income tax return under subsection
(k) or (n) of Section 168 of the Internal Revenue Code.
This subparagraph (R) is exempt from the provisions of
Section 250;
(S) If the taxpayer sells, transfers, abandons, or
otherwise disposes of property for which the taxpayer
was required in any taxable year to make an addition
modification under subparagraph (G-10), then an amount
equal to that addition modification.
If the taxpayer continues to own property through
the last day of the last tax year for which a
subtraction is allowed with respect to that property
under subparagraph (R) and for which the taxpayer was
required in any taxable year to make an addition
modification under subparagraph (G-10), then an amount
equal to that addition modification.
The taxpayer is allowed to take the deduction
under this subparagraph only once with respect to any
one piece of property.
This subparagraph (S) is exempt from the
provisions of Section 250;
(T) The amount of (i) any interest income (net of
the deductions allocable thereto) taken into account
for the taxable year with respect to a transaction
with a taxpayer that is required to make an addition

HB4937 - 85 - LRB104 17741 HLH 31172 b
modification with respect to such transaction under
Section 203(a)(2)(D-17), 203(b)(2)(E-12),
203(c)(2)(G-12), or 203(d)(2)(D-7), but not to exceed
the amount of such addition modification and (ii) any
income from intangible property (net of the deductions
allocable thereto) taken into account for the taxable
year with respect to a transaction with a taxpayer
that is required to make an addition modification with
respect to such transaction under Section
203(a)(2)(D-18), 203(b)(2)(E-13), 203(c)(2)(G-13), or
203(d)(2)(D-8), but not to exceed the amount of such
addition modification. This subparagraph (T) is exempt
from the provisions of Section 250;
(U) An amount equal to the interest income taken
into account for the taxable year (net of the
deductions allocable thereto) with respect to
transactions with (i) a foreign person who would be a
member of the taxpayer's unitary business group but
for the fact the foreign person's business activity
outside the United States is 80% or more of that
person's total business activity and (ii) for taxable
years ending on or after December 31, 2008, to a person
who would be a member of the same unitary business
group but for the fact that the person is prohibited
under Section 1501(a)(27) from being included in the
unitary business group because he or she is ordinarily

HB4937 - 86 - LRB104 17741 HLH 31172 b
required to apportion business income under different
subsections of Section 304, but not to exceed the
addition modification required to be made for the same
taxable year under Section 203(c)(2)(G-12) for
interest paid, accrued, or incurred, directly or
indirectly, to the same person. This subparagraph (U)
is exempt from the provisions of Section 250;
(V) An amount equal to the income from intangible
property taken into account for the taxable year (net
of the deductions allocable thereto) with respect to
transactions with (i) a foreign person who would be a
member of the taxpayer's unitary business group but
for the fact that the foreign person's business
activity outside the United States is 80% or more of
that person's total business activity and (ii) for
taxable years ending on or after December 31, 2008, to
a person who would be a member of the same unitary
business group but for the fact that the person is
prohibited under Section 1501(a)(27) from being
included in the unitary business group because he or
she is ordinarily required to apportion business
income under different subsections of Section 304, but
not to exceed the addition modification required to be
made for the same taxable year under Section
203(c)(2)(G-13) for intangible expenses and costs
paid, accrued, or incurred, directly or indirectly, to

HB4937 - 87 - LRB104 17741 HLH 31172 b
the same foreign person. This subparagraph (V) is
exempt from the provisions of Section 250;
(W) in the case of an estate, an amount equal to
all amounts included in such total pursuant to the
provisions of Section 111 of the Internal Revenue Code
as a recovery of items previously deducted by the
decedent from adjusted gross income in the computation
of taxable income. This subparagraph (W) is exempt
from Section 250;
(X) an amount equal to the refund included in such
total of any tax deducted for federal income tax
purposes, to the extent that deduction was added back
under subparagraph (F). This subparagraph (X) is
exempt from the provisions of Section 250;
(Y) For taxable years ending on or after December
31, 2011, in the case of a taxpayer who was required to
add back any insurance premiums under Section
203(c)(2)(G-14), such taxpayer may elect to subtract
that part of a reimbursement received from the
insurance company equal to the amount of the expense
or loss (including expenses incurred by the insurance
company) that would have been taken into account as a
deduction for federal income tax purposes if the
expense or loss had been uninsured. If a taxpayer
makes the election provided for by this subparagraph
(Y), the insurer to which the premiums were paid must

HB4937 - 88 - LRB104 17741 HLH 31172 b
add back to income the amount subtracted by the
taxpayer pursuant to this subparagraph (Y). This
subparagraph (Y) is exempt from the provisions of
Section 250;
(Z) For taxable years beginning after December 31,
2018, the amount of excess business loss of the
taxpayer disallowed as a deduction by Section
461(l)(1)(B) of the Internal Revenue Code; and
(AA) For taxable years beginning on or after
January 1, 2023, for any cannabis establishment
operating in this State and licensed under the
Cannabis Regulation and Tax Act or any cannabis
cultivation center or medical cannabis dispensing
organization operating in this State and licensed
under the Compassionate Use of Medical Cannabis
Program Act, an amount equal to the deductions that
were disallowed under Section 280E of the Internal
Revenue Code for the taxable year and that would not be
added back under this subsection. The provisions of
this subparagraph (AA) are exempt from the provisions
of Section 250.
(3) Limitation. The amount of any modification
otherwise required under this subsection shall, under
regulations prescribed by the Department, be adjusted by
any amounts included therein which were properly paid,
credited, or required to be distributed, or permanently

HB4937 - 89 - LRB104 17741 HLH 31172 b
set aside for charitable purposes pursuant to Internal
Revenue Code Section 642(c) during the taxable year.
(d) Partnerships.
(1) In general. In the case of a partnership, base
income means an amount equal to the taxpayer's taxable
income for the taxable year as modified by paragraph (2).
(2) Modifications. The taxable income referred to in
paragraph (1) shall be modified by adding thereto the sum
of the following amounts:
(A) An amount equal to all amounts paid or accrued
to the taxpayer as interest or dividends during the
taxable year to the extent excluded from gross income
in the computation of taxable income;
(B) An amount equal to the amount of tax imposed by
this Act to the extent deducted from gross income for
the taxable year;
(C) The amount of deductions allowed to the
partnership pursuant to Section 707 (c) of the
Internal Revenue Code in calculating its taxable
income;
(D) An amount equal to the amount of the capital
gain deduction allowable under the Internal Revenue
Code, to the extent deducted from gross income in the
computation of taxable income;
(D-5) For taxable years 2001 through 2025, an

HB4937 - 90 - LRB104 17741 HLH 31172 b
amount equal to the bonus depreciation deduction taken
on the taxpayer's federal income tax return for the
taxable year under subsection (k) of Section 168 of
the Internal Revenue Code; for taxable years 2026 and
thereafter, an amount equal to the bonus depreciation
deduction taken on the taxpayer's federal income tax
return for the taxable year under subsection (k) or
(n) of Section 168 of the Internal Revenue Code;
(D-6) If the taxpayer sells, transfers, abandons,
or otherwise disposes of property for which the
taxpayer was required in any taxable year to make an
addition modification under subparagraph (D-5), then
an amount equal to the aggregate amount of the
deductions taken in all taxable years under
subparagraph (O) with respect to that property.
If the taxpayer continues to own property through
the last day of the last tax year for which a
subtraction is allowed with respect to that property
under subparagraph (O) and for which the taxpayer was
allowed in any taxable year to make a subtraction
modification under subparagraph (O), then an amount
equal to that subtraction modification.
The taxpayer is required to make the addition
modification under this subparagraph only once with
respect to any one piece of property;
(D-7) An amount equal to the amount otherwise

HB4937 - 91 - LRB104 17741 HLH 31172 b
allowed as a deduction in computing base income for
interest paid, accrued, or incurred, directly or
indirectly, (i) for taxable years ending on or after
December 31, 2004, to a foreign person who would be a
member of the same unitary business group but for the
fact the foreign person's business activity outside
the United States is 80% or more of the foreign
person's total business activity and (ii) for taxable
years ending on or after December 31, 2008, to a person
who would be a member of the same unitary business
group but for the fact that the person is prohibited
under Section 1501(a)(27) from being included in the
unitary business group because he or she is ordinarily
required to apportion business income under different
subsections of Section 304. The addition modification
required by this subparagraph shall be reduced to the
extent that dividends were included in base income of
the unitary group for the same taxable year and
received by the taxpayer or by a member of the
taxpayer's unitary business group (including amounts
included in gross income pursuant to Sections 951
through 964 of the Internal Revenue Code and amounts
included in gross income under Section 78 of the
Internal Revenue Code) with respect to the stock of
the same person to whom the interest was paid,
accrued, or incurred. For taxable years ending on and

HB4937 - 92 - LRB104 17741 HLH 31172 b
after December 31, 2025, for purposes of applying this
paragraph in the case of a taxpayer to which Section
163(j) of the Internal Revenue Code applies for the
taxable year, the reduction in the amount of interest
for which a deduction is allowed by reason of Section
163(j) shall be treated as allocable first to persons
who are not foreign persons referred to in this
paragraph and then to such foreign persons.
This For taxable years ending before December 31,
2025, this paragraph shall not apply to the following:
(i) an item of interest paid, accrued, or
incurred, directly or indirectly, to a person who
is subject in a foreign country or state, other
than a state which requires mandatory unitary
reporting, to a tax on or measured by net income
with respect to such interest; or
(ii) an item of interest paid, accrued, or
incurred, directly or indirectly, to a person if
the taxpayer can establish, based on a
preponderance of the evidence, both of the
following:
(a) the person, during the same taxable
year, paid, accrued, or incurred, the interest
to a person that is not a related member, and
(b) the transaction giving rise to the
interest expense between the taxpayer and the

HB4937 - 93 - LRB104 17741 HLH 31172 b
person did not have as a principal purpose the
avoidance of Illinois income tax, and is paid
pursuant to a contract or agreement that
reflects an arm's-length interest rate and
terms; or
(iii) the taxpayer can establish, based on
clear and convincing evidence, that the interest
paid, accrued, or incurred relates to a contract
or agreement entered into at arm's-length rates
and terms and the principal purpose for the
payment is not federal or Illinois tax avoidance;
or
(iv) an item of interest paid, accrued, or
incurred, directly or indirectly, to a person if
the taxpayer establishes by clear and convincing
evidence that the adjustments are unreasonable; or
if the taxpayer and the Director agree in writing
to the application or use of an alternative method
of apportionment under Section 304(f).
For taxable years ending on or after December 31,
2025, this paragraph shall not apply to the following:
(i) an item of interest paid, accrued, or
incurred, directly or indirectly, to a person if
the taxpayer can establish, based on a
preponderance of the evidence, both of the
following:

HB4937 - 94 - LRB104 17741 HLH 31172 b
(a) the person, during the same taxable
year, paid, accrued, or incurred, the interest
to a person that is not a related member, and
(b) the transaction giving rise to the
interest expense between the taxpayer and the
person did not have as a principal purpose the
avoidance of Illinois income tax, and is paid
pursuant to a contract or agreement that
reflects an arm's-length interest rate and
terms; or
(ii) an item of interest paid, accrued, or
incurred, directly or indirectly, to a person if
the taxpayer establishes by clear and convincing
evidence that the adjustments are unreasonable; or
if the taxpayer and the Director agree in writing
to the application or use of an alternative method
of apportionment under Section 304(f).
Nothing in this subsection shall preclude the
Director from making any other adjustment otherwise
allowed under Section 404 of this Act for any tax year
beginning after the effective date of this amendment
provided such adjustment is made pursuant to
regulation adopted by the Department and such
regulations provide methods and standards by which the
Department will utilize its authority under Section
404 of this Act; and

HB4937 - 95 - LRB104 17741 HLH 31172 b
(D-8) An amount equal to the amount of intangible
expenses and costs otherwise allowed as a deduction in
computing base income, and that were paid, accrued, or
incurred, directly or indirectly, (i) for taxable
years ending on or after December 31, 2004, to a
foreign person who would be a member of the same
unitary business group but for the fact that the
foreign person's business activity outside the United
States is 80% or more of that person's total business
activity and (ii) for taxable years ending on or after
December 31, 2008, to a person who would be a member of
the same unitary business group but for the fact that
the person is prohibited under Section 1501(a)(27)
from being included in the unitary business group
because he or she is ordinarily required to apportion
business income under different subsections of Section
304. The addition modification required by this
subparagraph shall be reduced to the extent that
dividends were included in base income of the unitary
group for the same taxable year and received by the
taxpayer or by a member of the taxpayer's unitary
business group (including amounts included in gross
income pursuant to Sections 951 through 964 of the
Internal Revenue Code and amounts included in gross
income under Section 78 of the Internal Revenue Code)
with respect to the stock of the same person to whom

HB4937 - 96 - LRB104 17741 HLH 31172 b
the intangible expenses and costs were directly or
indirectly paid, incurred or accrued. The preceding
sentence shall not apply to the extent that the same
dividends caused a reduction to the addition
modification required under Section 203(d)(2)(D-7) of
this Act. As used in this subparagraph, the term
"intangible expenses and costs" includes (1) expenses,
losses, and costs for, or related to, the direct or
indirect acquisition, use, maintenance or management,
ownership, sale, exchange, or any other disposition of
intangible property; (2) losses incurred, directly or
indirectly, from factoring transactions or discounting
transactions; (3) royalty, patent, technical, and
copyright fees; (4) licensing fees; and (5) other
similar expenses and costs. For purposes of this
subparagraph, "intangible property" includes patents,
patent applications, trade names, trademarks, service
marks, copyrights, mask works, trade secrets, and
similar types of intangible assets;
This For taxable years ending on or after December
31, 2025, this paragraph shall not apply to the
following:
(i) any item of intangible expenses or costs
paid, accrued, or incurred, directly or
indirectly, from a transaction with a person who
is subject in a foreign country or state, other

HB4937 - 97 - LRB104 17741 HLH 31172 b
than a state which requires mandatory unitary
reporting, to a tax on or measured by net income
with respect to such item; or
(ii) any item of intangible expense or cost
paid, accrued, or incurred, directly or
indirectly, if the taxpayer can establish, based
on a preponderance of the evidence, both of the
following:
(a) the person during the same taxable
year paid, accrued, or incurred, the
intangible expense or cost to a person that is
not a related member, and
(b) the transaction giving rise to the
intangible expense or cost between the
taxpayer and the person did not have as a
principal purpose the avoidance of Illinois
income tax, and is paid pursuant to a contract
or agreement that reflects arm's-length terms;
or
(iii) any item of intangible expense or cost
paid, accrued, or incurred, directly or
indirectly, from a transaction with a person if
the taxpayer establishes by clear and convincing
evidence, that the adjustments are unreasonable;
or if the taxpayer and the Director agree in
writing to the application or use of an

HB4937 - 98 - LRB104 17741 HLH 31172 b
alternative method of apportionment under Section
304(f);
For taxable years ending on or after December 31,
2025, this paragraph shall not apply to the following:
(i) any item of intangible expense or cost
paid, accrued, or incurred, directly or
indirectly, if the taxpayer can establish, based
on a preponderance of the evidence, both of the
following:
(a) the person during the same taxable
year paid, accrued, or incurred, the
intangible expense or cost to a person that is
not a related member, and
(b) the transaction giving rise to the
intangible expense or cost between the
taxpayer and the person did not have as a
principal purpose the avoidance of Illinois
income tax, and is paid pursuant to a contract
or agreement that reflects arm's-length terms;
or
(ii) any item of intangible expense or cost
paid, accrued, or incurred, directly or
indirectly, from a transaction with a person if
the taxpayer establishes by clear and convincing
evidence, that the adjustments are unreasonable;
or if the taxpayer and the Director agree in

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writing to the application or use of an
alternative method of apportionment under Section
304(f).
Nothing in this subsection shall preclude the
Director from making any other adjustment otherwise
allowed under Section 404 of this Act for any tax year
beginning after the effective date of this amendment
provided such adjustment is made pursuant to
regulation adopted by the Department and such
regulations provide methods and standards by which the
Department will utilize its authority under Section
404 of this Act;
(D-9) For taxable years ending on or after
December 31, 2008, an amount equal to the amount of
insurance premium expenses and costs otherwise allowed
as a deduction in computing base income, and that were
paid, accrued, or incurred, directly or indirectly, to
a person who would be a member of the same unitary
business group but for the fact that the person is
prohibited under Section 1501(a)(27) from being
included in the unitary business group because he or
she is ordinarily required to apportion business
income under different subsections of Section 304. The
addition modification required by this subparagraph
shall be reduced to the extent that dividends were
included in base income of the unitary group for the

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same taxable year and received by the taxpayer or by a
member of the taxpayer's unitary business group
(including amounts included in gross income under
Sections 951 through 964 of the Internal Revenue Code
and amounts included in gross income under Section 78
of the Internal Revenue Code) with respect to the
stock of the same person to whom the premiums and costs
were directly or indirectly paid, incurred, or
accrued. The preceding sentence does not apply to the
extent that the same dividends caused a reduction to
the addition modification required under Section
203(d)(2)(D-7) or Section 203(d)(2)(D-8) of this Act;
(D-10) An amount equal to the credit allowable to
the taxpayer under Section 218(a) of this Act,
determined without regard to Section 218(c) of this
Act;
(D-11) For taxable years ending on or after
December 31, 2017, an amount equal to the deduction
allowed under Section 199 of the Internal Revenue Code
for the taxable year;
(D-12) the amount that is claimed as a federal
deduction when computing the taxpayer's federal
taxable income for the taxable year and that is
attributable to an endowment gift for which the
taxpayer receives a credit under the Illinois Gives
Tax Credit Act;

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and by deducting from the total so obtained the following
amounts:
(E) The valuation limitation amount;
(F) An amount equal to the amount of any tax
imposed by this Act which was refunded to the taxpayer
and included in such total for the taxable year;
(G) An amount equal to all amounts included in
taxable income as modified by subparagraphs (A), (B),
(C) and (D) which are exempt from taxation by this
State either by reason of its statutes or Constitution
or by reason of the Constitution, treaties or statutes
of the United States; provided that, in the case of any
statute of this State that exempts income derived from
bonds or other obligations from the tax imposed under
this Act, the amount exempted shall be the interest
net of bond premium amortization;
(H) Any income of the partnership which
constitutes personal service income as defined in
Section 1348(b)(1) of the Internal Revenue Code (as in
effect December 31, 1981) or a reasonable allowance
for compensation paid or accrued for services rendered
by partners to the partnership, whichever is greater;
this subparagraph (H) is exempt from the provisions of
Section 250;
(I) An amount equal to all amounts of income
distributable to an entity subject to the Personal

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Property Tax Replacement Income Tax imposed by
subsections (c) and (d) of Section 201 of this Act
including amounts distributable to organizations
exempt from federal income tax by reason of Section
501(a) of the Internal Revenue Code; this subparagraph
(I) is exempt from the provisions of Section 250;
(J) With the exception of any amounts subtracted
under subparagraph (G), an amount equal to the sum of
all amounts disallowed as deductions by (i) Sections
171(a)(2) and 265(a)(2) of the Internal Revenue Code,
and all amounts of expenses allocable to interest and
disallowed as deductions by Section 265(a)(1) of the
Internal Revenue Code; and (ii) for taxable years
ending on or after August 13, 1999, Sections
171(a)(2), 265, 280C, and 832(b)(5)(B)(i) of the
Internal Revenue Code, plus, (iii) for taxable years
ending on or after December 31, 2011, Section
45G(e)(3) of the Internal Revenue Code and, for
taxable years ending on or after December 31, 2008,
any amount included in gross income under Section 87
of the Internal Revenue Code; the provisions of this
subparagraph are exempt from the provisions of Section
250;
(K) An amount equal to those dividends included in
such total which were paid by a corporation which
conducts business operations in a River Edge

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Redevelopment Zone or zones created under the River
Edge Redevelopment Zone Act and conducts substantially
all of its operations from a River Edge Redevelopment
Zone or zones. This subparagraph (K) is exempt from
the provisions of Section 250;
(L) An amount equal to any contribution made to a
job training project established pursuant to the Real
Property Tax Increment Allocation Redevelopment Act;
(M) An amount equal to those dividends included in
such total that were paid by a corporation that
conducts business operations in a federally designated
Foreign Trade Zone or Sub-Zone and that is designated
a High Impact Business located in Illinois; provided
that dividends eligible for the deduction provided in
subparagraph (K) of paragraph (2) of this subsection
shall not be eligible for the deduction provided under
this subparagraph (M);
(N) An amount equal to the amount of the deduction
used to compute the federal income tax credit for
restoration of substantial amounts held under claim of
right for the taxable year pursuant to Section 1341 of
the Internal Revenue Code;
(O) For taxable years 2001 and thereafter, for the
taxable year in which the bonus depreciation deduction
is taken on the taxpayer's federal income tax return
under subsection (k) or (n) of Section 168 of the

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Internal Revenue Code and for each applicable taxable
year thereafter, an amount equal to "x", where:
(1) "y" equals the amount of the depreciation
deduction taken for the taxable year on the
taxpayer's federal income tax return on property
for which the bonus depreciation deduction was
taken in any year under subsection (k) or (n) of
Section 168 of the Internal Revenue Code, but not
including the bonus depreciation deduction;
(2) for taxable years ending on or before
December 31, 2005, "x" equals "y" multiplied by 30
and then divided by 70 (or "y" multiplied by
0.429); and
(3) for taxable years ending after December
31, 2005:
(i) for property on which a bonus
depreciation deduction of 30% of the adjusted
basis was taken, "x" equals "y" multiplied by
30 and then divided by 70 (or "y" multiplied
by 0.429);
(ii) for property on which a bonus
depreciation deduction of 50% of the adjusted
basis was taken, "x" equals "y" multiplied by
1.0;
(iii) for property on which a bonus
depreciation deduction of 100% of the adjusted

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basis was taken in a taxable year ending on or
after December 31, 2021, "x" equals the
depreciation deduction that would be allowed
on that property if the taxpayer had made the
election under Section 168(k)(7) or Section
168(n)(6) of the Internal Revenue Code to not
claim bonus depreciation on that property; and
(iv) for property on which a bonus
depreciation deduction of a percentage other
than 30%, 50% or 100% of the adjusted basis
was taken in a taxable year ending on or after
December 31, 2021, "x" equals "y" multiplied
by 100 times the percentage bonus depreciation
on the property (that is, 100(bonus%)) and
then divided by 100 times 1 minus the
percentage bonus depreciation on the property
(that is, 100(1-bonus%)).
The aggregate amount deducted under this
subparagraph in all taxable years for any one piece of
property may not exceed the amount of the bonus
depreciation deduction taken on that property on the
taxpayer's federal income tax return under subsection
(k) or (n) of Section 168 of the Internal Revenue Code.
This subparagraph (O) is exempt from the provisions of
Section 250;
(P) If the taxpayer sells, transfers, abandons, or

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otherwise disposes of property for which the taxpayer
was required in any taxable year to make an addition
modification under subparagraph (D-5), then an amount
equal to that addition modification.
If the taxpayer continues to own property through
the last day of the last tax year for which a
subtraction is allowed with respect to that property
under subparagraph (O) and for which the taxpayer was
required in any taxable year to make an addition
modification under subparagraph (D-5), then an amount
equal to that addition modification.
The taxpayer is allowed to take the deduction
under this subparagraph only once with respect to any
one piece of property.
This subparagraph (P) is exempt from the
provisions of Section 250;
(Q) The amount of (i) any interest income (net of
the deductions allocable thereto) taken into account
for the taxable year with respect to a transaction
with a taxpayer that is required to make an addition
modification with respect to such transaction under
Section 203(a)(2)(D-17), 203(b)(2)(E-12),
203(c)(2)(G-12), or 203(d)(2)(D-7), but not to exceed
the amount of such addition modification and (ii) any
income from intangible property (net of the deductions
allocable thereto) taken into account for the taxable

HB4937 - 107 - LRB104 17741 HLH 31172 b
year with respect to a transaction with a taxpayer
that is required to make an addition modification with
respect to such transaction under Section
203(a)(2)(D-18), 203(b)(2)(E-13), 203(c)(2)(G-13), or
203(d)(2)(D-8), but not to exceed the amount of such
addition modification. This subparagraph (Q) is exempt
from Section 250;
(R) An amount equal to the interest income taken
into account for the taxable year (net of the
deductions allocable thereto) with respect to
transactions with (i) a foreign person who would be a
member of the taxpayer's unitary business group but
for the fact that the foreign person's business
activity outside the United States is 80% or more of
that person's total business activity and (ii) for
taxable years ending on or after December 31, 2008, to
a person who would be a member of the same unitary
business group but for the fact that the person is
prohibited under Section 1501(a)(27) from being
included in the unitary business group because he or
she is ordinarily required to apportion business
income under different subsections of Section 304, but
not to exceed the addition modification required to be
made for the same taxable year under Section
203(d)(2)(D-7) for interest paid, accrued, or
incurred, directly or indirectly, to the same person.

HB4937 - 108 - LRB104 17741 HLH 31172 b
This subparagraph (R) is exempt from Section 250;
(S) An amount equal to the income from intangible
property taken into account for the taxable year (net
of the deductions allocable thereto) with respect to
transactions with (i) a foreign person who would be a
member of the taxpayer's unitary business group but
for the fact that the foreign person's business
activity outside the United States is 80% or more of
that person's total business activity and (ii) for
taxable years ending on or after December 31, 2008, to
a person who would be a member of the same unitary
business group but for the fact that the person is
prohibited under Section 1501(a)(27) from being
included in the unitary business group because he or
she is ordinarily required to apportion business
income under different subsections of Section 304, but
not to exceed the addition modification required to be
made for the same taxable year under Section
203(d)(2)(D-8) for intangible expenses and costs paid,
accrued, or incurred, directly or indirectly, to the
same person. This subparagraph (S) is exempt from
Section 250;
(T) For taxable years ending on or after December
31, 2011, in the case of a taxpayer who was required to
add back any insurance premiums under Section
203(d)(2)(D-9), such taxpayer may elect to subtract

HB4937 - 109 - LRB104 17741 HLH 31172 b
that part of a reimbursement received from the
insurance company equal to the amount of the expense
or loss (including expenses incurred by the insurance
company) that would have been taken into account as a
deduction for federal income tax purposes if the
expense or loss had been uninsured. If a taxpayer
makes the election provided for by this subparagraph
(T), the insurer to which the premiums were paid must
add back to income the amount subtracted by the
taxpayer pursuant to this subparagraph (T). This
subparagraph (T) is exempt from the provisions of
Section 250; and
(U) For taxable years beginning on or after
January 1, 2023, for any cannabis establishment
operating in this State and licensed under the
Cannabis Regulation and Tax Act or any cannabis
cultivation center or medical cannabis dispensing
organization operating in this State and licensed
under the Compassionate Use of Medical Cannabis
Program Act, an amount equal to the deductions that
were disallowed under Section 280E of the Internal
Revenue Code for the taxable year and that would not be
added back under this subsection. The provisions of
this subparagraph (U) are exempt from the provisions
of Section 250.

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(e) Gross income; adjusted gross income; taxable income.
(1) In general. Subject to the provisions of paragraph
(2) and subsection (b)(3), for purposes of this Section
and Section 803(e), a taxpayer's gross income, adjusted
gross income, or taxable income for the taxable year shall
mean the amount of gross income, adjusted gross income or
taxable income properly reportable for federal income tax
purposes for the taxable year under the provisions of the
Internal Revenue Code. Taxable income may be less than
zero. However, for taxable years ending on or after
December 31, 1986, net operating loss carryforwards from
taxable years ending prior to December 31, 1986, may not
exceed the sum of federal taxable income for the taxable
year before net operating loss deduction, plus the excess
of addition modifications over subtraction modifications
for the taxable year. For taxable years ending prior to
December 31, 1986, taxable income may never be an amount
in excess of the net operating loss for the taxable year as
defined in subsections (c) and (d) of Section 172 of the
Internal Revenue Code, provided that when taxable income
of a corporation (other than a Subchapter S corporation),
trust, or estate is less than zero and addition
modifications, other than those provided by subparagraph
(E) of paragraph (2) of subsection (b) for corporations or
subparagraph (E) of paragraph (2) of subsection (c) for
trusts and estates, exceed subtraction modifications, an

HB4937 - 111 - LRB104 17741 HLH 31172 b
addition modification must be made under those
subparagraphs for any other taxable year to which the
taxable income less than zero (net operating loss) is
applied under Section 172 of the Internal Revenue Code or
under subparagraph (E) of paragraph (2) of this subsection
(e) applied in conjunction with Section 172 of the
Internal Revenue Code.
(2) Special rule. For purposes of paragraph (1) of
this subsection, the taxable income properly reportable
for federal income tax purposes shall mean:
(A) Certain life insurance companies. In the case
of a life insurance company subject to the tax imposed
by Section 801 of the Internal Revenue Code, life
insurance company taxable income, plus the amount of
distribution from pre-1984 policyholder surplus
accounts as calculated under Section 815a of the
Internal Revenue Code;
(B) Certain other insurance companies. In the case
of mutual insurance companies subject to the tax
imposed by Section 831 of the Internal Revenue Code,
insurance company taxable income;
(C) Regulated investment companies. In the case of
a regulated investment company subject to the tax
imposed by Section 852 of the Internal Revenue Code,
investment company taxable income;
(D) Real estate investment trusts. In the case of

HB4937 - 112 - LRB104 17741 HLH 31172 b
a real estate investment trust subject to the tax
imposed by Section 857 of the Internal Revenue Code,
real estate investment trust taxable income;
(E) Consolidated corporations. In the case of a
corporation which is a member of an affiliated group
of corporations filing a consolidated income tax
return for the taxable year for federal income tax
purposes, taxable income determined as if such
corporation had filed a separate return for federal
income tax purposes for the taxable year and each
preceding taxable year for which it was a member of an
affiliated group. For purposes of this subparagraph,
the taxpayer's separate taxable income shall be
determined as if the election provided by Section
243(b)(2) of the Internal Revenue Code had been in
effect for all such years;
(F) Cooperatives. In the case of a cooperative
corporation or association, the taxable income of such
organization determined in accordance with the
provisions of Section 1381 through 1388 of the
Internal Revenue Code, but without regard to the
prohibition against offsetting losses from patronage
activities against income from nonpatronage
activities; except that a cooperative corporation or
association may make an election to follow its federal
income tax treatment of patronage losses and

HB4937 - 113 - LRB104 17741 HLH 31172 b
nonpatronage losses. In the event such election is
made, such losses shall be computed and carried over
in a manner consistent with subsection (a) of Section
207 of this Act and apportioned by the apportionment
factor reported by the cooperative on its Illinois
income tax return filed for the taxable year in which
the losses are incurred. The election shall be
effective for all taxable years with original returns
due on or after the date of the election. In addition,
the cooperative may file an amended return or returns,
as allowed under this Act, to provide that the
election shall be effective for losses incurred or
carried forward for taxable years occurring prior to
the date of the election. Once made, the election may
only be revoked upon approval of the Director. The
Department shall adopt rules setting forth
requirements for documenting the elections and any
resulting Illinois net loss and the standards to be
used by the Director in evaluating requests to revoke
elections. Public Act 96-932 is declaratory of
existing law;
(G) Subchapter S corporations. In the case of: (i)
a Subchapter S corporation for which there is in
effect an election for the taxable year under Section
1362 of the Internal Revenue Code, the taxable income
of such corporation determined in accordance with

HB4937 - 114 - LRB104 17741 HLH 31172 b
Section 1363(b) of the Internal Revenue Code, except
that taxable income shall take into account those
items which are required by Section 1363(b)(1) of the
Internal Revenue Code to be separately stated; and
(ii) a Subchapter S corporation for which there is in
effect a federal election to opt out of the provisions
of the Subchapter S Revision Act of 1982 and have
applied instead the prior federal Subchapter S rules
as in effect on July 1, 1982, the taxable income of
such corporation determined in accordance with the
federal Subchapter S rules as in effect on July 1,
1982; and
(H) Partnerships. In the case of a partnership,
taxable income determined in accordance with Section
703 of the Internal Revenue Code, except that taxable
income shall take into account those items which are
required by Section 703(a)(1) to be separately stated
but which would be taken into account by an individual
in calculating his taxable income.
(3) Recapture of business expenses on disposition of
asset or business. Notwithstanding any other law to the
contrary, if in prior years income from an asset or
business has been classified as business income and in a
later year is demonstrated to be non-business income, then
all expenses, without limitation, deducted in such later
year and in the 2 immediately preceding taxable years

HB4937 - 115 - LRB104 17741 HLH 31172 b
related to that asset or business that generated the
non-business income shall be added back and recaptured as
business income in the year of the disposition of the
asset or business. Such amount shall be apportioned to
Illinois using the greater of the apportionment fraction
computed for the business under Section 304 of this Act
for the taxable year or the average of the apportionment
fractions computed for the business under Section 304 of
this Act for the taxable year and for the 2 immediately
preceding taxable years.
(f) Valuation limitation amount.
(1) In general. The valuation limitation amount
referred to in subsections (a)(2)(G), (c)(2)(I) and
(d)(2)(E) is an amount equal to:
(A) The sum of the pre-August 1, 1969 appreciation
amounts (to the extent consisting of gain reportable
under the provisions of Section 1245 or 1250 of the
Internal Revenue Code) for all property in respect of
which such gain was reported for the taxable year;
plus
(B) The lesser of (i) the sum of the pre-August 1,
1969 appreciation amounts (to the extent consisting of
capital gain) for all property in respect of which
such gain was reported for federal income tax purposes
for the taxable year, or (ii) the net capital gain for

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the taxable year, reduced in either case by any amount
of such gain included in the amount determined under
subsection (a)(2)(F) or (c)(2)(H).
(2) Pre-August 1, 1969 appreciation amount.
(A) If the fair market value of property referred
to in paragraph (1) was readily ascertainable on
August 1, 1969, the pre-August 1, 1969 appreciation
amount for such property is the lesser of (i) the
excess of such fair market value over the taxpayer's
basis (for determining gain) for such property on that
date (determined under the Internal Revenue Code as in
effect on that date), or (ii) the total gain realized
and reportable for federal income tax purposes in
respect of the sale, exchange or other disposition of
such property.
(B) If the fair market value of property referred
to in paragraph (1) was not readily ascertainable on
August 1, 1969, the pre-August 1, 1969 appreciation
amount for such property is that amount which bears
the same ratio to the total gain reported in respect of
the property for federal income tax purposes for the
taxable year, as the number of full calendar months in
that part of the taxpayer's holding period for the
property ending July 31, 1969 bears to the number of
full calendar months in the taxpayer's entire holding
period for the property.

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(C) The Department shall prescribe such
regulations as may be necessary to carry out the
purposes of this paragraph.
(g) Double deductions. Unless specifically provided
otherwise, nothing in this Section shall permit the same item
to be deducted more than once.
(h) Legislative intention. Except as expressly provided by
this Section there shall be no modifications or limitations on
the amounts of income, gain, loss or deduction taken into
account in determining gross income, adjusted gross income or
taxable income for federal income tax purposes for the taxable
year, or in the amount of such items entering into the
computation of base income and net income under this Act for
such taxable year, whether in respect of property values as of
August 1, 1969 or otherwise.
(Source: P.A. 103-8, eff. 6-7-23; 103-478, eff. 1-1-24;
103-592, Article 10, Section 10-900, eff. 6-7-24; 103-592,
Article 170, Section 170-90, eff. 6-7-24; 103-605, eff.
7-1-24; 103-647, eff. 7-1-24; 104-6, eff. 6-16-25; 104-417,
eff. 8-15-25; 104-453, eff. 12-12-25.)
Section 99. Effective date. This Act takes effect upon
becoming law.