We require one of the following when claiming a refund for a deceased taxpayer:

Letters of Authority for Personal Representatives if appointed by a Court or Claim for Refund Due a Deceased Taxpayer (form MI-1310) and a death certificate

Mail to Michigan Department of Treasury, Customer Contact Division, P.O. Box 30058, Lansing, MI 48909. If you have questions use the "Check My Income Tax Info" site to "Submit a Question to Treasury" or call Customer Services at 1-800-827-4000. Click on the above link and follow these steps:

1. Select the option "Submit a Question to Treasury" button on the next page and follow the directions.
2. After verification of your identification, choose the appropriate link "Ask Treasury a Question".
3. You will be asked to enter the tax year, your adjusted gross income/household income and filing status. Follow the directions given on the next page to "Ask Treasury a Question".