Emergency-related state tax relief available for taxpayers located in twelve northern Michigan counties impacted by March 2025 storms.
Tax Professionals eService Help Center
Tax Professionals eService Help Center
What is the difference between Michigan Treasury Online (MTO) and Tax Professionals eServices?
Tax Professionals eService is a web service portal for service providers to ask questions quickly and securely on behalf of themselves or their individual income tax or business tax clients. Michigan Treasury Online (MTO) is Treasury's web service portal for business tax taxpayers and their service providers to file, pay, and manage their state-level taxes.
Tax Professionals Video Tutorials
Individual Income Tax Inquiries
Sales, Use, and Withholding Tax Inquiries
Frequently Asked Questions (FAQ)
View the eServices FAQError Handling Information
Technical Errors
Technical errors are accompanied by an Error Code and Description on the screen. At the end of the Error Code, there is a 3-digit number. When calling Treasury providing that to the Customer Service representative that you speak to will expedite the process to get you back on track.
Non-Technical Errors
Non-Technical errors will display both with a Message (i.e. No Match Found) and instructions on how to resolve those errors.
Potential Errors and the Actions Required to Resolve Them
| Error Text | Action Required |
|---|---|
| Verification Not Successful |
Contact Treasury at 517-636-4486. |
| No Match Found, Try Again |
Click "Start Over" - this error indicates that you have provided a combination of information that doesn't match our records. |
| Account Locked | Please wait for 24 hours and try again. |
| Duplicate Email | Go to MiLogin and update your user profile. The same email cannot be used for multiple accounts. |
| Login Failed | Click "Go Home" to attempt to log in again. |
| Missing Email | Go to MiLogin and update your user profile with an email address. |
| Connection Timeout | Try your action again in a few minutes. |
Error Codes
The 3-digit number in the Error Code will allow you to do a little troubleshooting on your own. Below is a table of details on how to handle each code.
| Sub Code | Possible Resolution |
|---|---|
| 000 | Something went wrong, refresh your browser, and attempt the action again. |
| 001 | There has been no activity on the page for 15 minutes. Refresh your browser and attempt the action again. |
| 002 | The information provided does not match anything on record. Check your entries for completeness and accuracy and try again. |
| 003 | A connectivity issue has occurred. Please try again, and if the problem persists, contact Treasury. |