Last Updated August 22, 2017
Michigan Department of Treasury – Withholding Tax
Michigan Unemployment Insurance Agency – Unemployment tax
Add to existing company setup
Submit a request to your service team to add MI (withholding) and/or MISUI (unemployment) to your company setup. Please include the below with your request:
Michigan Department of Treasury
- 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.
Michigan Unemployment Insurance Agency
- 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
Michigan Department of Treasury and Michigan Unemployment Insurance Agency
Employers can register online for both Michigan withholding and Michigan unemployment at https://miwam.unemployment.state.mi.us/mip/ereg/_/. Select “Start eRegistration” link at the top of the page to begin the process. Once complete you will receive your withholding account number and deposit frequency. Your unemployment account number will be received within 3 business days. If you have any questions regarding registration, please contact the agency at 313-456-2188.
Third Party Registration and/or Power of Attorney Instructions
Power of Attorney is required, please obtain the prefilled form from your client service representative.