Registration - 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.
For SUW account specific questions, visit michigan.gov/AskSUW.
Online responses to questions cannot contain any sensitive information and may take up to five business days to be available. Account-specific responses will instead be mailed to the legal address on your account.
Other ways to contact the Department of Treasury with questions about your business taxes.
P.O. Box 30427
Lansing, MI 48909