Wisconsin House Bill 870

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Completed Legislative Action
Sponsorship: Partisan Bill (Republican 2)
Status: Failed on March 23 2026 - 100% progression
Action: 2026-03-23 - Failed to concur in pursuant to Senate Joint Resolution 1
Text: Latest bill text (Introduced) [PDF]

An Act to amend 71.01 (6) (n) 1., 71.07 (5) (a) (intro.), 71.07 (5) (a) 2., 71.07 (5) (a) 3., 71.07 (5) (a) 4., 71.22 (4) (n) 1., 71.22 (4m) (n) 1., 71.26 (2) (b) 15. a., 71.26 (3) (e) 1., 71.34 (1g) (n) 1., 71.34 (1k) (h) 1., 71.42 (2) (n) 1., 71.65 (2) (b), 71.70 (1) and 71.72; to create 71.01 (6) (o), 71.05 (21m), 71.22 (4) (o), 71.22 (4m) (o), 71.26 (2) (a) 13., 71.26 (2) (b) 16., 71.34 (1g) (o), 71.42 (2) (o) and 71.45 (2) (a) 25. of the statutes; Relating to: adopting changes to the federal Internal Revenue Code for state tax purposes and modifying administrative rules related to such changes. (FE)

Adopting changes to the federal Internal Revenue Code for state tax purposes and modifying administrative rules related to such changes. (FE)

Rep. Robert Wittke [R]

Sen. Howard Marklein [R]

2026-02-19 - House - Assembly: Read a third time and passed (Y: 58 N: 35 NV: 6 Abs: 0) [PASS]

Date	Chamber	Action
2026-03-23	Senate	Failed to concur in pursuant to Senate Joint Resolution 1
2026-02-25	Senate	Available for scheduling
2026-02-25	Senate	Read first time and referred to committee on Senate Organization
2026-02-24	Senate	LRB correction (Assembly Substitute Amendment 1)
2026-02-23	Senate	Received from Assembly
2026-02-19	House	Ordered immediately messaged
2026-02-19	House	Read a third time and passed, Ayes 58, Noes 35
2026-02-19	House	Rules suspended
2026-02-19	House	Ordered to a third reading
2026-02-19	House	Assembly Substitute Amendment 1 adopted
2026-02-19	House	Assembly Substitute Amendment 1 offered by Representative Wittke
2026-02-19	House	Read a second time
2026-02-18	House	Made a special order of business at 11:38 AM on 2-19-2026 pursuant to Assembly Resolution 14
2026-02-10	House	Report of Joint Survey Committee on Tax Exemptions received
2026-02-09	House	Executive action taken by joint survey committee on Tax Exemptions
2026-02-06	House	Referred to joint survey committee on Tax Exemptions pursuant to Assembly Rule 45 (4)
2026-02-04	House	Referred to committee on Rules
2026-02-04	House	Report passage as amended recommended by Committee on Ways and Means, Ayes 7, Noes 3
2026-02-04	House	Report Assembly Amendment 1 adoption recommended by Committee on Ways and Means, Ayes 7, Noes 3
2026-02-04	House	Executive action taken
2026-01-28	House	Fiscal estimate received
2026-01-21	House	Public hearing held
2026-01-19	House	Assembly Amendment 1 offered by Representative Wittke
2026-01-16	House	Read first time and referred to Committee on Ways and Means
2026-01-16	House	Introduced

SB859 (Crossfiled) 2026-03-23 - Failed to pass pursuant to Senate Joint Resolution 1

Type	Source
Summary	https://docs.legis.wisconsin.gov/2025/proposals/reg/asm/bill/ab870
Text	https://docs.legis.wisconsin.gov/document/proposaltext/2025/REG/AB870.pdf
Amendment	https://docs.legis.wisconsin.gov/document/amends/2025/REG/AB870-AA1.pdf
Amendment	https://docs.legis.wisconsin.gov/document/amends/2025/REG/AB870-ASA1.pdf
Supplement	https://docs.legis.wisconsin.gov/2025/related/records/assembly/ways_and_means/1966842.pdf
Supplement	https://docs.legis.wisconsin.gov/2025/related/fe/ab870/ab870_dor.pdf
Supplement	https://docs.legis.wisconsin.gov/2025/related/fe/ab870/ab870_jscte.pdf
Supplement	https://docs.legis.wisconsin.gov/document/lcamendmentmemos/2025/REG/AB870.pdf
Supplement	https://docs.legis.wisconsin.gov/2025/related/records/senate/senate_organization/1984999.pdf
Roll Call	https://docs.legis.wisconsin.gov/document/votes/2025/av0295