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Account Maintenance

Account Maintenance

  • When will we receive guidance on the Third-Party Administrator (TPA) authorization process?

    A quick reference guide is available on MiUI University describing the Employer / TPA association process.

  • Can Third-Party Administrator (TPA)s connect an employer to their account?

    The employer can complete the association or a TPA can request association, in certain circumstances (Professional Employer Organizations / Fiscal Intermediaries), between the employer and TPA accounts. 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.

  • Can Third-Party Administrator (TPA) accounts have multiple users with different access levels?

    There is only one level of access for TPAs (TPA System Administrator).

  • As a third-party administrators (TPAs), should I be able to see correspondences from before February 23, 2026?

    TPAs will only be able to see correspondences generated after MiUI went live in the system on February 23, 2026.

  • Can multiple Third-Party Administrators (TPAs) have the same View role in MiUI at the same time?

    Yes, multiple TPAs can be assigned the same View role at the same time. There is no limit to the number of TPA accounts who can share View access for the same role at a given time.

  • Will a main administrator be required for Third-Party Administrator (TPA) accounts?

    By default, the person who created/activated the TPA account will have system administrator privileges and maintain the login credentials for the TPA account itself. Any additional users added to a TPA account will also have system administrator privileges.

  • How are EANs used in MiUI?

    The 7-digit Employer Account Number (EAN) is the simplest way for UIA staff or third-party administrators (TPAs) to find an employer account in MiUI using search functions. If an employer account changes status (reimbursing, contributing, terminated, reactivated), it keeps the same EAN—so employers will not use multiple EANs.

  • How do added users activate their user profile?

    All users who are added to a third-party administrator (TPA) account will activate their own account using their FEIN (Federal Employer Identification Number) or SSN (Social Security number) and the Activation Code they received via email. Please refer to this step-by-step guide.

  • How do I reactivate my account?

    After logging in to MiUI through MiLogin (MiUI log in for Employers and MiUI log in for TPAs), navigate to the Employer Homepage and select Account Maintenance. Then, from the drop-down menu, select Request Reactivation. Once on the Reactivate Account screen in MiUI, you will be asked a few questions. Don’t forget to select submit to finalize your account reactivation request.

  • How do I update my email address information in MiUI?

    In the left navigation menu, select Account Maintenance. From the dropdown, select Address Information. On the Address Information screen, select the hyperlink for your mailing address. At the bottom of the screen, you will see the fields to update your email address.

  • How do we remove user access in MiUI?

    Under Account Maintenance, there is a menu option for Maintain Users or Roles. There, you will be able to locate the desired user and remove their access.

  • How does the system handle multiple Third-Party Administrators (TPAs) with different roles?

    MiUI will allow multiple TPAs to have View access for the same role at the same time. However, an Edit or Submit role can only be active for one TPA at a time.

  • How soon after I assign a Third-Party Administrator (TPA) a role will they have the selected role permissions?

    TPAs will receive the assigned role permissions immediately.

  • How will I get my Third-Party Administrator (TPA) ID in MiUI?

    New TPAs will register in MiUI and will receive their MiUI TPA ID after registration. TPAs can sign into MiUI to activate their account and can view their TPA ID in the top right corner of the TPA homepage.

  • How will Third-Party Administrators (TPAs) manage their employers/clients in MiUI?

    TPAs will grant system administrator roles to their employees to manage their employers/clients. Assigning specific employers/clients or roles to employees is not possible in MiUI.

  • I have made duplicate user profiles, can I delete one?

    If you have duplicate active user profiles, you can deactivate one. If a profile is deactivated, it will still be shown in the search results on the Maintain Users or Roles screen, but it will be listed as "Inactive." If a user profile is "Pending" activation, it cannot be deactivated.

  • If I am an employer with multiple businesses under one MiLogin for Business account, how do I access them all in MiUI?

    After logging into MiUI, you will see a list of all the businesses tied to your account. To manage a specific business, select the business name. On your employer home page you can select the Switch Business hyperlink to return to the previous page and navigate between your businesses.

  • If the employer grants their Third-Party Administrator (TPA) the Edit Account Account Maintenance role in MiUI will the TPA have the ability to edit their TPA roles?

     TPAs cannot edit their own role assignments in MiUI.

  • Is there a character limit for email addresses in MiUI when adding a user profile?

    Yes, there is a 30-character limit for email addresses.

  • What roles will third-party administrators (TPAs) who perform WOTC actions have in MiUI?

    The employer must grant WOTC permissions to the TPA in MiUI. To complete this action, the employer will need the TPA’s MiUI TPA ID. TPAs with the proper authorization can also associate themselves with an employer outside of the Automatic Assignment process.

    There is a WOTC Update and Submit role in MiUI for TPAs who conduct WOTC actions. MiUI also includes a WOTC View Only role that can be assigned to TPAs.

  • What access do Third Party-Administrators (TPAs) and any added users of that TPA have in MiUI?

    For TPAs there is only one security role, System Administrator which allows all users of that TPA to view all employers associated to that TPA.

  • What can someone do with the Edit Rate Notice and Voluntary Contribution role?

    A user with the Edit Rate Notice and Voluntary Contribution role can request an experience transfer, view the rate notice, and view the Voluntary Contribution Calculator. Third-party administrators (TPAs) cannot be granted access to this role, but can be assigned the View Rate Notice and Voluntary Contribution role.

  • What is a Reporting Unit and where did the "location code" go in MiUI?

    A Reporting Unit refers to a secondary location for a company, a different physical location, or a subsidiary. In MiUI, Reporting Unit details are stored elsewhere, so the 7-digit EAN does not include the 3-digit location code.

  • What POA form should I submit if I am a Fiscal Intermediary working on behalf of my employer in MiUI?

    Please continue to use the current Power of Attorney form (UIA-1488) available on the UIA Website.

  • What resources can Third-Party Administrators (TPAs) share with their employers to prepare them for authorizing their TPAs in MiUI?

    There will be a step-by-step guide and recording that TPAs can share with employers, so they know how to conduct the authorization process. Both resources will contain screenshots to help walk employers through the process.

  • Will both employers and Third-Party Administrators (TPAs) be required to have a MiLogin for Business account to establish their relationship?

    Employers will be required to have a MiLogin for Business account to access MiUI and establish the relationship with their TPA. TPAs will also require a MiLogin for Business account to access MiUI and be provided role(s) to act on their employer's behalf.

  • What file formats are available in MiUI?

    MiUI accepts the following file formats: Delimited, ICESA, EFW2, and XML. To learn more about these file formats please reference the Quarterly Wage Reports (QRG) on MiUI University.