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Flow-Through Entity Tax - Ask A Question

Update Your Account

Log on to Michigan Treasury Online (MTO) to update business details, authorized representative information, and to file or pay tax returns.

Contact MTO

Contact a business tax customer service registration representative for general questions or account related information.

Other ways to contact the Department of Treasury

517-636-6925

Michigan Department of Treasury
P.O. Box 30825
Lansing, MI 48909