• The Michigan Automated Tax System (MiMATS) – Treasury’s new Motor Fuel tax processing system will begin July 30, 2018. The last date to file in the current system will be July 20th, 2018.


Michigan Suppliers, Exporters and Aviation Fuel Registrants

Filing Deadlines

  • Monthly and quarterly Motor Fuel Tax returns are due on the 20th of the month following the reporting period.

    If the 20th of the month falls on a Saturday, Sunday or legal holiday, the next business day shall be considered the due date. If payment is not postmarked or received in our office by the due date, penalty and interest charges may be assessed based on provisions of the Michigan Revenue Act MCL 205.24. Check with your financial institution about their specific ACH requirements, since some banks require the ACH debit order by 4:00 PM on the business day before the due date in order to ACH transfer the funds on the due date.