What are Revenue Administrative Bulletins (RAB's) and where can I find them?

Individual Income Tax (IIT) Contact Center Closure

On Wednesday, August 20, 2025, IIT phone lines will be down for maintenance. However, you can access tax account information or ask a question online.

Go to IIT eService

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What are Revenue Administrative Bulletins (RAB's) and where can I find them?

Definition of Revenue Administration Bulletin.

View a list of Revenue Administrative Bulletins.

If you are unable to find a specific RAB you may request a copy by emailing us at treasIndTax@michigan.gov.