The Tax Refund Offset Program TROP is a coordinated effort of the U.

Some international students and scholars are required to file a State of Michigan Tax Form. Resident aliens for tax purposes follow the same guidelines and use the same forms as U. The Tax Refund Offset Program TROP is a coordinated effort of the U. Even if you are not required to file a State of Michigan tax form, you may want to file this form if you are due a refund of taxes withheld because if you do not file the State of Michigan will keep your refund.