Michigan Treasury Online - Ask a Question

Responsible parties to a business can utilize the Business Taxes eService to ask Treasury general or account-specific questions related to Michigan Treasury Online (MTO). Treasury provides responses to these questions electronically within 7 business days. If your question is related to a letter you received from Treasury, have a copy of the letter available to provide the Letter ID.

Business Taxes eService

Business tax service providers can utilize the Tax Professionals eService to ask Treasury general or account-specific questions related to Michigan Treasury Online. Treasury provides responses to these questions electronically within 7 business days. If your question is related to a letter you received from Treasury, have a copy of the letter available to provide the Letter ID.

Tax Professionals eService