Business Taxes IconSales, Use, and Withholding - Ask a Question

  • For account specific questions, you will need to include the business's identification number and address as well as your relationship to the business. Additionally, if responding to a notice we sent to you, include the Letter ID printed at the top of page one.

  • Ask a Question

    Access the eServices Business Taxes portal

    eService Business Taxes is a portal where you can ask account specific or general questions that Treasury can reply to electronically. To submit a question, you will need details about the business and the Letter ID off any notice being referenced. Online responses to questions may take 7 business days to be available. If Treasury is unable to verify the information provided, the response will include a request to resubmit with updated information.

    For additional resoures and helpful information visit the Business Tax eServices Portal Help Center.

Other ways to contact the Department of Treasury with questions about your business taxes.

  • Phone Number

    Call Us



  • Mailing Address

    Mail Us

    P.O. Box 30427

    Lansing, MI 48909