Why am I being charged additional penalty and interest if I filed for an extension?

Emergency-related state tax relief available for taxpayers located in multiple counties of Michigan impacted by severe weather.

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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.

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Why am I being charged additional penalty and interest if I filed for an extension?

An extension of time to file is not an extension of time to pay. Penalty and interest will accrue on the unpaid tax from the original due date of the return.