Bill Title: Amends the Illinois Income Tax Act. Provides that the rate of tax on individuals, trusts, and estates shall be (i) 4.5667% of the taxpayer's net income for taxable years beginning on or after January 1, 2026 and ending before January 1, 2027, (ii) 4.1833% of the taxpayer's net income for taxable years beginning on or after January 1, 2027 and ending before January 1, 2028, and (iii) 3.8% of the taxpayer's net income for taxable years beginning on or after January 1, 2028 (currently, 4.95%). Provides that the rate of tax for corporations is (i) 6.3% of the taxpayer's net income for taxable years beginning on or after January 1, 2026 and ending before January 1, 2027, (ii) 5.6% of the taxpayer's net income for taxable years beginning on or after January 1, 2027 and ending before January 1, 2028, and (iii) 4.9% of the taxpayer's net income for taxable years beginning on or after January 1, 2028. Effective immediately.

Sponsorship: Partisan Bill (Republican 1)

Status: (Introduced) 2026-02-10 - Referred to Rules Committee [HB5017 Detail]

Text: Latest bill text (Introduced) [HTML]

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