MI HB4813

Establishes a tax credit for Michigan taxpayers who purchase a qualified principal residence or retrofit their home for accessibility or visitability during tax years 2020-2024.

Credit amount equals 4.0% of purchase price (capped at $5,000) for new accessible homes or 50% of retrofit costs (capped at $5,000) for modifications designed to improve accessibility or visitability.

Requires taxpayers to obtain certification from the Michigan State Housing Development Authority by January 10 of the year following the qualifying purchase or retrofit, with authority issuing certificates by February 10.

Limits total statewide credits to $1,000,000 annually, split equally between $500,000 for home purchases and $500,000 for retrofits, with unused allocations transferable between categories and pro-rata distribution if demand exceeds supply.

Defines qualified homes as having zero-step entrances, at least one bathroom on the main floor, and doorways with minimum 32-inch clear passage space; unused credits may be carried forward up to 7 years.