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What happens if I fail to file and make the required estimated tax payments?
Failure to file and make the required estimated tax payments may result in a bill or an assessment issued by the Michigan Department of Treasury for penalty and interest.
Penalty is 25% for failing to file estimated payments or 10% of underpaid tax per quarter. Interest is 1% above the prime rate.
For more information view Penalty and Interest for Underpayment of Estimates (MI-2210)