IllinoisSB3486104th General Assembly (2025–2026)Senate

INC TAX-COMBINED REPORTING

Sponsored By: Robert F. Martwick (Democratic)

In Committee

Summary

Amends the Illinois Income Tax Act. Provides that provisions of the Act that provide that a taxpayer's unitary business group does not include members whose business activity outside the United States is 80% or more of the member's total business activity apply only for taxable years ending before January 1, 2026. Makes corresponding changes to deductions and addition modifications concerning those members of the unitary business group. Provides that, with respect to the term "foreign person", "United States" means the 50 states of the United States, the District of Columbia, the territories and possessions of the United States, and any area over which the United States has asserted jurisdiction or claimed exclusive rights with respect to the exploration for or exploitation of natural resources. Adds provisions concerning joint and several liability of members of a combined reporting group. Effective immediately.

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Bill Overview

No Economic Impacts Identified for this Bill

Sponsors & Cosponsors

Sponsor

  • Robert F. Martwick

    Democratic • Senate

Cosponsors

  • Adriane L. Johnson

    Democratic • Senate

  • David Koehler

    Democratic • Senate

  • Emil Jones, III

    Democratic • Senate

  • Graciela Guzmán

    Democratic • Senate

  • Javier L. Cervantes

    Democratic • Senate

  • Karina Villa

    Democratic • Senate

  • Lakesia Collins

    Democratic • Senate

  • Mark L. Walker

    Democratic • Senate

  • Mary Edly-Allen

    Democratic • Senate

  • Mattie Hunter

    Democratic • Senate

  • Mike Simmons

    Democratic • Senate

  • Rachel Ventura

    Democratic • Senate

  • Willie Preston

    Democratic • Senate

Roll Call Votes

No roll call votes available for this bill.

Actions Timeline

  1. Added as Co-Sponsor Sen. David Koehler

    5/12/2026Senate
  2. Added as Co-Sponsor Sen. Mike Simmons

    4/23/2026Senate
  3. Added as Co-Sponsor Sen. Emil Jones, III

    4/17/2026Senate
  4. Added as Co-Sponsor Sen. Willie Preston

    4/15/2026Senate
  5. Added as Co-Sponsor Sen. Mary Edly-Allen

    4/14/2026Senate
  6. Added as Co-Sponsor Sen. Lakesia Collins

    3/11/2026Senate
  7. Added as Co-Sponsor Sen. Mattie Hunter

    3/10/2026Senate
  8. Added as Co-Sponsor Sen. Javier L. Cervantes

    3/4/2026Senate
  9. Added as Chief Co-Sponsor Sen. Graciela Guzmán

    2/27/2026Senate
  10. Sponsor Removed Sen. Graciela Guzmán

    2/27/2026Senate
  11. Added as Co-Sponsor Sen. Graciela Guzmán

    2/27/2026Senate
  12. Added as Co-Sponsor Sen. Mark L. Walker

    2/27/2026Senate
  13. Added as Co-Sponsor Sen. Adriane L. Johnson

    2/26/2026Senate
  14. Added as Co-Sponsor Sen. Karina Villa

    2/25/2026Senate
  15. Added as Co-Sponsor Sen. Rachel Ventura

    2/9/2026Senate
  16. Referred to Assignments

    2/5/2026Senate
  17. First Reading

    2/5/2026Senate
  18. Filed with Secretary by Sen. Robert F. Martwick

    2/5/2026Senate

Bill Text

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