Contact CIT

How do I contact Treasury for Corporate Income Tax (CIT) matters?

Important:

Unless otherwise noted in "Why was my CIT return adjusted?" FAQs, if additional information is required to adjust or correct the original return, a complete amended return, including all forms, schedules and attachments, must be submitted to the CIT Returns address below.  Please remember to provide the reason code for the reason you are amending the return in the appropriate field in the taxpayer information at the top of page 1.

 Corporate Income Tax Correspondence Address (No CIT Returns):

  • Customer Contact Division, CIT Unit
    Michigan Department of Treasury
    P.O. Box 30059
    Lansing, MI 48909
  • Corporate Income Tax Returns:

With Payment:

  • Michigan Department of Treasury
    P.O. Box 30804
    Lansing, MI 48909 

Without Payment:

  • Michigan Department of Treasury
    P.O. Box 30803
    Lansing, MI 48909
  • Corporate Income Tax Phone Number:
    • 517-636-6925
  • Collections Phone Number:
    • 517-636-5265
  • Collections Correspondence Address:
    • Michigan Department of Treasury
      Collection Division
      P.O. Box 30199
      Lansing, MI 48909