The Michigan Unemployment Insurance Agency (UIA) launched the first phase of a new Michigan Unemployment Insurance (MiUI) system on February 23, 2026, for Employers and Third-Party Administrators (TPAs) to perform tax functions. The second phase will launch in summer 2026 which will bring benefits functions to MiUI for Employers, TPAs, and Claimants.

Getting Started with MiUI

All Employers and TPAs will need to create a MiLogin for Business account or utilize their pre-existing account to access MiUI. You can find steps on how to create a MiLogin for Business account here. You can also view  this video on creating a MiLogin for Business account. Employers and TPAs will need a MiLogin account to access MiUI.

The following Getting Started with MiUI for Employers and TPAs will provide actionable steps to begin using MiUI.

The following MiUI Prep video also provides helpful information on getting started in MiUI.

Wage Reporting in MiUI

All quarterly wage reports are now submitted in MiUI vs the legacy MiWAM system. There are four filing methods:

1. Manual Entry
2. File Upload
3. Copy Previous Quarter
4. No Employment and No Wage Reports

All file uploads will require the use of a new MiUI file format. Four formats are available for use: Delimited, ICESA, EFW2, and XML. The MiWAM delimited format is no longer supported.

You are able to test your files using the Quarterly Wage Report Testing tool at MiUI University.

MiUI Resources

To assist with this transition, several resources are available to help prepare Employers and TPAs for the MiUI rollout: 

• MiUI University: An online library of resources for users including resource guides, infographics, videos, key changes, FAQs, and more. 

Figure 2 - MiUI University Image

• MiUI Toolkit: This toolkit is a downloadable detailed guide that provides an overview of the MiUI system and how to use it for tax functions. You will find helpful information, reference materials, and step-by-step guidance for various tasks in MiUI.

Figure 3 - MiUI Toolkit Image

• MiUI Minute email series: A newsletter providing quick updates, learnings, and actionable steps on the transition from MiWAM to MiUI. Sign up for the MiUI Minute email series by visiting the UIA website and subscribing to the Employer Advisor Newsletter.

 MiUI Support

Support for Employers and TPAs is a phone call, email, or click away. Please call the Office of Employer Ombudsman at 1-855-484-2636 and select Option 4. Reach out to the MiUI Employer support inbox for technical related support at UIA-MiUIEmployerSupport@michigan.gov.

Thank you for your continued support as we transition to the new MiUI system. We look forward to collaborating with you throughout the launch to make this transition a success.