Michigan
Last Updated June 17, 2026.
Michigan employers must establish withholding and unemployment insurance accounts and meet state payroll filing requirements. Use the resources below to access tax information and registration tools.
State Tax Guidelines
Michigan Department of Treasury – Withholding Tax
Agency Information
Add to existing company setup
Submit a request to your service team to add MI (withholding) to your company setup. Please include the below with your request:
- Withholding – Withholding account number and Deposit Frequency. If you’re unsure of your deposit frequency or account number you can call the agency at 517-636-4730.
Register a new company
Michigan Unemployment Insurance Agency – Unemployment tax
Agency Information
Add to existing company setup
Submit a request to your service team to add MISUI (unemployment) to your company setup. Please include the below with your request:
- Unemployment – Account Number and Tax rate. This can be found on a Tax Rate Notice or the Quarterly contribution report. If you’re unsure of your tax rate or account number, you can call the agency at 313-456-2010.
- Power of Attorney- POA is required, please obtain the prefilled form from your client service representative.
Register a new company
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