2025 Senate Bill 584

Individual income tax: withholding requirements; mandatory withholding requirement by pension administrators; make optional.

A bill to amend 1967 PA 281, entitled “Income tax act of 1967,” by amending section 703 (MCL 206.703), as amended by 2016 PA 158.

AI Analysis – Experimental

Senate Bill No. 584 amends Michigan's Income Tax Act to streamline and clarify income tax withholding requirements, notably removing outdated provisions for flow-through entities and maintaining key rules for other payers, with changes effective January 1, 2026.

Introduced in the Senate

Sept. 25, 2025

Introduced by Sens. Jeff Irwin (D-15) and Mary Cavanagh (D-6)

Referred to the Committee on Finance, Insurance, and Consumer Protection