The Revenue Act provides penalty and interest if a taxpayer fails to pay a tax within the time specified.
Penalty is 5 percent of the total unpaid tax due for the first two months. After two months, 5% of the unpaid tax amount is assessed each month. The maximum late penalty is equal to 25% of the unpaid tax owed.
Interest is calculated by multiplying the current interest rate.
| TAX | DUE DATE |
| Sales For return periods after August 2004 | Monthly Filer - on or before the 20 th day of the following month |
Quarterly Filer - on or before the 20 th day of month following the quarter
Annual Filer - February 28 th , with discount for early remittance
All Businesses are required to file an annual return each year
Quarterly Filer - on or before the 20 th day of the month following the quarter
Annual Filer - February 28 th
All Businesses are required to file an annual return each year
Fiscal Year Filers - Last day of the 4 th month after the end of the tax year
Michigan Business Tax (MBT) 2008-2011
After 2011, must have certificated credit