Michigan Withholding Payments If you are required to make monthly payments of Michigan withholding tax, the payment is due on the 20th of the next month.  For example, the payment for October payroll is due by November 20. If you make your payments quarterly, the payment is due on the 20th of the month following the end of the quarter.  For example, the payment for the 2nd quarter of 2010 (April, May, and June payroll) is due by July 20, 2010.