FASTEST AND PREFERRED METHOD: Online – Visit Michigan. Direct deposit into a personal checking or savings account; or Direct deposit to a child support debit card.Your Michigan state tax refund can only be garnished (also known as intercepted) through the Michigan Department of Treasury. Payments are due on or before last day of every month. Payment Types Accepted: online payments, money orders and cashier's checks. Safe, quick and easy electronic payment options available. If you mail your tax payment, make your check, money order or cashier's check payable to US Treasury. Child support is a parent's court-ordered payment to help with the costs of raising a child. Child support normally stops when a child turns 18. Completed original form should be sent to Office of Tax Services, 426 Auditorium Rd Room 301, to be processed.