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Bills · 2025-2026 Regular Session

AB 870

Died at session end Official bill text Atom feed

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

Administrative rules — Revisions Franchise — Taxation Income tax Legislature — Tax exemptions joint survey committee on Revenue department of

  1. Introduced, stopped here
  2. Passes Assembly, not reached
  3. Passes Senate, not reached
  4. Governor signs, not reached
  5. Law, not reached

Unfamiliar terms? Glossary

What this bill does

Plain-language analysis by the nonpartisan Legislative Reference Bureau

This bill adopts, for state income and franchise tax purposes, changes made to the federal Internal Revenue Code so that the state tax code, generally, conforms to the federal tax code. The bill also modifies rules promulgated by the Department of Revenue with regard to reporting non-wage payments, rents, and royalties, so that the rules also confirm with recent changes made to the federal Internal Revenue Code.

Because this bill relates to an exemption from state or local taxes, it may be referred to the Joint Survey Committee on Tax Exemptions for a report to be printed as an appendix to the bill.

What it would cost

Fiscal estimates filed by state agencies, as official PDFs

Sponsors

Introduced by: Wittke (R)

1 cosponsors

Marklein (R)

Registered lobbying interests · 10

Organizations that registered lobbying activity on this bill with the Wisconsin Ethics Commission. Registration means interest, not a position for or against. Official record

Votes

Assembly: Report Assembly Amendment 1 adoption recommended by Committee on Ways and Means, Ayes 7, Noes 3

Passed 7–3 Feb 4, 2026 official source full page

No individual roll call was recorded for this vote. Committee votes and some older sessions record totals only.

Assembly: Report passage as amended recommended by Committee on Ways and Means, Ayes 7, Noes 3

Passed 7–3 Feb 4, 2026 official source full page

No individual roll call was recorded for this vote. Committee votes and some older sessions record totals only.

Assembly: PASSAGE

Passed 58–35 Feb 19, 2026 official source full page

Aye · 58

Full history

  1. Jan 16, 2026 · Assembly

    Introduced by Representative Wittke; cosponsored by Senator Marklein

  2. Jan 16, 2026 · Assembly

    Read first time and referred to Committee on Ways and Means

  3. Jan 19, 2026 · Assembly

    Assembly Amendment 1 offered by Representative Wittke

  4. Jan 21, 2026 · Assembly

    Public hearing held

  5. Jan 28, 2026 · Assembly

    Fiscal estimate received

  6. Feb 4, 2026 · Assembly

    Executive action taken

  7. Feb 4, 2026 · Assembly

    Report Assembly Amendment 1 adoption recommended by Committee on Ways and Means, Ayes 7, Noes 3

  8. Feb 4, 2026 · Assembly

    Report passage as amended recommended by Committee on Ways and Means, Ayes 7, Noes 3

  9. Feb 4, 2026 · Assembly

    Referred to committee on Rules

  10. Feb 6, 2026 · Assembly

    Referred to joint survey committee on Tax Exemptions pursuant to Assembly Rule 45 (4)

  11. Feb 9, 2026 · Assembly

    Executive action taken by joint survey committee on Tax Exemptions

  12. Feb 10, 2026 · Assembly

    Report of Joint Survey Committee on Tax Exemptions received

  13. Feb 18, 2026 · Assembly

    Made a special order of business at 11:38 AM on 2-19-2026 pursuant to Assembly Resolution 14

  14. Feb 19, 2026 · Assembly

    Read a second time

  15. Feb 19, 2026 · Assembly

    Assembly Substitute Amendment 1 offered by Representative Wittke

  16. Feb 19, 2026 · Assembly

    Assembly Substitute Amendment 1 adopted

  17. Feb 19, 2026 · Assembly

    Ordered to a third reading

  18. Feb 19, 2026 · Assembly

    Rules suspended

  19. Feb 19, 2026 · Assembly

    Read a third time and passed, Ayes 58, Noes 35

  20. Feb 19, 2026 · Assembly

    Ordered immediately messaged

  21. Feb 23, 2026 · Senate

    Received from Assembly

  22. Feb 24, 2026 · Senate

    LRB correction (Assembly Substitute Amendment 1)

  23. Feb 25, 2026 · Senate

    Read first time and referred to committee on Senate Organization

  24. Feb 25, 2026 · Senate

    Available for scheduling

  25. Mar 23, 2026 · Senate

    Failed to concur in pursuant to Senate Joint Resolution 1