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.
Tax Interest Rate Calculation
Estimate Penalty and Interest
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DISCLAIMER: If the date you specify in this calculator is earlier than the date the Department receives your late return/late payment you may receive a bill for additional late filing/late payment penalties and interest owed. To avoid the possibility of this occurring, in step 3, the date the late return/late payment will be received should be 3-5 business days from the date payment will be mailed.
NOTE: Please be aware that this calculator only computes penalties for late filing and late payment. It cannot be used to compute the penalty for underpayment of estimated tax by individuals, fiduciaries, and corporations. Depending upon the facts of your case, additional penalties may be due pursuant to the law.