Scammers are contacting taxpayers while pretending to be from the Michigan Department of Treasury, using out‑of‑state phone numbers. They may request payments or attempt to trick you into providing your bank account information. Always verify the source before sharing any personal or financial details.
When should I amend my Michigan return?
When should I amend my Michigan return?
Amend your Michigan return only after your original return or claim has been filed and processed. If you are claiming a refund on your amended return, you must file it within four years of the due date of the original return (including approved extensions). For example, to amend a 2021 return that was not extended, the amended return must be received by April 20, 2026.
If a change on your federal return affects your Adjusted Gross Income (AGI) and/or your exemptions, you must file an amended Michigan return within 16 weeks of the change. Include a copy of your amended federal return with all applicable schedules and supporting documents. Submit payment of any tax and interest due.