Corporate income tax: credits; state historic preservation tax credit program; modify. Amends sec. 676 of 1967 PA 281 (MCL 206.676). TIE BAR WITH: HB 4504'25

House Bill 4503 modifies Michigan's corporate income tax credit program for state historic preservation. It allows qualified taxpayers to claim a credit for expenses incurred rehabilitating historic resources, with credit amounts varying between 25% and 30% of eligible costs depending on the type of resource. The bill also streamlines the application process by setting new approval timelines for the state historic preservation office. Significantly, it increases the total annual cap on these credits from $5 million to $100 million starting January 1, 2026, with specific allocations for different categories of historic properties.