Illinois DOR Proposes Amending Income Tax Regulations

The Illinois Department of Revenue (DOR) proposed amendments to income tax regulations concerning transactions with 80/20 affiliates. The proposal implements statutory changes that modify provisions requiring taxpayers to make additional modifications for interest or intangible expenses paid to 80/20 affiliates. Comments on the proposed rules are due by June 8. [Ill. Dep’t of Revenue, Proposed Reg. Section 100.2430, 04/24/26 Ill. Reg.]