The Michigan Department of Treasury has been made aware that some "Reminder of Tax Due" letters sent to taxpayers contain an incorrect toll-free (1-800) TTY number, which may connect callers to a potential scam. Taxpayers with questions regarding unpaid individual income taxes are asked to contact the Treasury directly at 517-636-4486. We apologize for any confusion or concern this may have caused.
Is the Michigan Department of Treasury charging penalty and interest for late payment of tax due on a 2020 income tax return?
The due date for filing and paying the tax due for tax year 2020 was extended to May 17, 2021. Any remaining tax due after this date is subject to penalty and interest for late payment.