Michigan Employer Advisor: October 2025

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Answers to questions about MiUI from the September Employer Advisor

Go to Michigan.gov/MiUIUniversity for more questions and answers about UIA’s upcoming new computer system, MiUI, which launches for employers and third-party administrators (TPAs) in December.

Questions from Employers

What is the Go Live date for the new system?

• Tax Go Live: Dec. 15, 2025.
• Benefits Go Live: Summer 2026.

When can we register?

• Registration Opens: Dec. 15, 2025.
• MiWAM Accounts: If an employer account exists in MiMAM, the account will be brought into MiUI automatically.

Are there specification changes?

• Yes. Visit MiUI University for more information.
• For specific changes on how accounts will differ in MiUI, look for the “Changes from MiWAM to MiUI” section. 

Will 4th Quarter reporting have to be done in MiUI or MiWAM?

• 2025 4th Quarter reporting, and all future reporting, will be submitted in MiUI. Reports must be submitted by Jan. 25, 2026.
• For more information about file formats, see the Resource Guide page at MiUI University for a Quick Reference Guide and detailed Employer Reference Documents for Delimited, ICESA, EFW2, and XML file formats.
• The MiWAM file format will no longer be accepted, employers and / or TPAs will need to update existing processes to reflect acceptable MiUI file formats.

Questions from Third Party Administrators (TPAs) 

Can TPA accounts have multiple users with different access levels?

• No. There is only one level of access for TPAs: TPA System Administrator.

Is there documentation for Employers on how to assign a TPA?

• It will be available on MiUI University later this month.

Can the TPA connect an employer to their account?

• Yes, with conditions:
  • Employers can complete the association or:
  • TPAs can request association (e.g., Professional Employer Organizations / Fiscal Intermediaries).
  • TPA roles can be assigned by an employer directly or requested by a TPA. Employers will have the ability to edit those TPA roles afterwards.

How do I locate the TPA code to give to the employer?

• In MiUI, the TPA code or ID will be in the upper right-hand corner on the TPA home page.
• TPAs can also locate it by viewing the TPA Account Profile under the Account Maintenance menu.

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Don't miss the next Employer Seminar! Upcoming Seminar is Wednesday, Nov. 19

Scan the QR Code below or go to the Employer Homepage at Michigan.gov/UIA for a link to sign up for an upcoming seminar.

The UIA's Tax and Employer Services Division provides these seminars to explain what employers and third-party administrators need to know about participating in the unemployment insurance program in Michigan.

Please note: Information and registration for additional MiUI-specific employer seminars is coming soon!

 

Keep up with news about MiUI system

The launch of MiUI is less than two months away for employers and third-party administrators. The tax portion of the new, modern computer system is scheduled to go live on Monday, Dec. 15, 2025. MiUI for benefits will launch in summer 2026.

Here’s how to stay informed about upcoming changes:

MiUI Minute Email: Each edition provides quick updates, learnings, and/or actionable steps on the transition to MiUI. The MiUI Minute is sent to all subscribers of the Employer Advisor newsletter. Sign up for the MiUI Minute.

MiUI University Website: The website offers details about the transition to MiUI. Its support resources will educate you about MiUI, including overviews, guides, and videos. The site will be regularly updated with new material as it becomes available before and after launch. Bookmark Michigan.gov/MiUIUniversity.

Employer Checklist: This informational month-by-month guide will help you track which actions need to be taken, and when, between now and go live in December.

What stops in MiWAM schedule: In preparation for the rollout of MiUI system, some MiWAM capabilities used by employers and TPAs will be reduced and/or discontinued. This schedule lists key dates when functions cease to be available. Get the schedule.

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Watch: UIA Director Jason Palmer explains overpayment collections

Each month, the Employer Advisor newsletter highlights a helpful video from our YouTube video library. 

This month's featured video is of UIA Director Jason Palmer explaining the current benefits overpayment collections process. 

Looking for other videos? Maybe something that has more of an employer focus? There are a variety of videos ranging from the password policy change for employer accounts to the Work Share program. 

Go to UIA's employer video playlist to browse the entire library. 

Send us your Advisor content ideas!

If you want to suggest an article or topic for a future edition of the Employer Advisor, or just want to tell us how much you enjoy reading it, please send a message to UIA-EmployerAdvisor@Michigan.gov.

You can find past issues of the newsletter on the Employer Homepage at Michigan.gov/UIA.