HB 5318 Illinois House · 104th Regular Session

INC TAX-COMBINED REPORTING

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, 2027. 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.
Bill status in committee 1 of 4 stages cleared
Introduction
Feb 2026
Committee Review
Floor Vote
Governor
Introduced Feb 5, 2026 Last action May 25, 2026
Floor votes

How they voted

No floor votes recorded yet.
Full legislative history

Actions timeline

Total actions
11
Key actions
0
Committee
3
Mar 27, 2026
Committee
Rule 19(a) / Re-referred to Rules Committee
lower
Mar 4, 2026
Committee
Assigned to Revenue & Finance Committee
lower
Feb 10, 2026
Committee
Referred to Rules Committee
lower
1 primary · 6 co-sponsors

Sponsors