Contact Treasury's Web Team
Where's My Refund? and Individual Income Tax (IIT) E-Services Issues
Please use the IIT Inquiries Portal to report your issue.
Business Tax E-Services Issues
Please use the Business Tax Ask a Question Portal to report your issue.
Michigan Treasury Online (MTO) Issues
Please use the MTO Contact Form to report your issue.
General Web Page Issues
Have a suggestion about improving a Web page? Want to report a page error or broken link?
To best serve you, please include the URL for any page you are referencing and send an email to Treas_SOS_WebRequest@michigan.gov.