State Tax Day - Current, S.10, Michigan—Corporate Income, Sales and Use Taxes: Additional Tax Relief Provided Due to Severe Weather, (Apr 23, 2026)
The Michigan Department of Treasury has extended tax relief to seven additional counties and two cities due to severe weather. Individuals and businesses in Ann Arbor and Kalamazoo and in the following counties may request additional time to file returns or make payments, with penalties and interest waived: Eaton, Jackson, Kalamazoo, Mecosta, Muskegon, Iron, and Marquette. Filing and payment extensions apply to state tax deadlines due on or before May 18, 2026, including the annual return filing and payment deadline for individuals (April 15, 2026) and corporations (April 30, 2026) and the return filing and payment deadline for monthly or quarterly sales and use tax (April 20, 2026). Tax relief does not apply to federal or city income tax deadlines.
News Release, Michigan Department of Treasury, April 21, 2026