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Identity Theft

To report that your individual identity information may have been compromised, please mail your concerns and include the following


  • Taxpayer's Name
  • Address
  • The last 4 digits of the Social Security Number
  • Brief description of the situation. (i.e., identity theft, fraudulent return filed under taxpayer's Social Security number, etc.)


Treasury will not send taxpayer specific information by email

Telephone: 517-636-4486

Identity Theft Unit
Income Tax Division
P.O. Box 30477
Lansing, MI 48909

If you have not filed your return yet, please do not submit your Michigan Tax Return to the Identity Theft Unit mailbox.

  • Mail refund, credit, or zero due returns to:
    Michigan Department of Treasury
    Lansing, MI 48956

  • If you owe tax, mail your return to:
    Michigan Department of Treasury
    Lansing, MI 48929