Michigan W 9 Form - December 2014) department of the treasury identification number and certification. If you had michigan income tax withheld in 2021, you must complete a withholding tax schedule (schedule w) to. By signing it you attest that:.
If you had michigan income tax withheld in 2021, you must complete a withholding tax schedule (schedule w) to. By signing it you attest that:. December 2014) department of the treasury identification number and certification.