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.
Filing Requirements 16. Is a taxpayer required to make a payment with an extension request?
If the extension request shows that estimated payments have been made that result in no unpaid estimated tax liability remaining for the tax period covered by the extension, then no payment must accompany the extension request.