MiUI Resources for Employers and TPAs

Changes to quarterly wage reporting file formats

There are now four file formats that will be accepted in MiUI. Employers may need to update existing processes to reflect acceptable file formats.

1. Delimited (i.e., CSV Comma Delimited)
   • Maximum file size: 70 KB
   • File extensions: .txt or .csv
2. ICESA (NASWA Standard File Format)
   • Maximum file size: 512 KB
   • File extensions: .txt
3. EFW2 (Formerly MMREF-SSA)
   • Maximum file size: 275 KB
   • File extension: .txt
4. XML (Standard XML Format)
   • Maximum file size: 800 KB
   • File extension: .xml

The MiWAM file format will no longer be accepted, employers and / or third-party administrators (TPAs) will need to update existing processes to reflect acceptable file formats. Detailed instructions for each file format will be available in the near future.

Key to the transition is setting up a MiLogin for Business account, which will be required to access MiUI. All users (Employers & TPAs) will need a MiLogin for Business account to use MiUI.

• No action by employers or third-party administrators (TPAs) is needed right now regarding MiLogin. Additional information and steps to set up your MiLogin for Business account will be provided this fall.
• MiLogin is the State of Michigan's identity management solution that allows users to access many state services and systems online, across multiple departments, using a single user ID and password. This single sign-on for logging in as an employer under one ID and password simplifies the process for users.
• All claimants are already required to use MiLogin and some employers may already have a MiLogin for Business account if they have interactions with other state departments, such as the Michigan Department of Treasury.
• Understanding MiLogin is crucial as it will be the gateway to the new MiUI system, streamlining access and enhancing security.