Third Party Administrator (TPA) FAQs


MyUI Employer+
Third Party Administrator FAQs



No. TPAs and employers will need to complete a one-time activation process for a new MyUI Employer+ account. We will send you the information you need to complete account activation before the system goes live.

After the new system is live, users will not be able to access the old system.

No. Only employers can register their MyUI Employer+ account. To ensure account ownership integrity, TPAs and employers are required to have separate accounts.

Multi Factor Authentication is an extra layer of security for your account. After logging in, users will be presented with three options to receive temporary security codes: an authenticator app, text message, or email. Users are required to enroll in MFA in order to access MyUI Employer+ accounts.

If employers are receiving a 403 error when clicking the activation link from the activation email, please ensure they are not on a Virtual Private Network (VPN). MyUI Employer+ will not allow VPN users to access the system due to system security. We are also currently troubleshooting issues related to system calculated excess wage amounts for political subdivisions. We are working on a solution and ask that you try submitting your wage report beginning October 6th, 2023. 

If employers have not received an activation email, their communication preference is mail. They will receive an account activation code the week of October 9th.


Account Management

The modernized system no longer requires some of the information contained in the old Employer Account Number (EAN) format. The new EAN format will have two-fewer digits, and no decimal. Ex: Account number 123456.12-1 would become 01234561.

Yes. MyUI Employer+ accounts will have a single account administrator with the ability to add multiple subusers. Users can be assigned any combination of roles and permissions to manage the account and perform actions inside MyUI Employer+.

TPA/Employer relationships can be added and managed inside employer account portal. Only Employer account administrators can add, assign, and manage TPA access to their employer account at this time. TPAs will not be able to perform any actions for an employer inside MyUI Employer+ until they have been assigned to the employer account.

Yes. Employers and TPAs are required to have separate MyUI Employer accounts in order to maintain account ownership integrity. TPAs can be assigned any combination of roles and permissions once the employer account has been activated.

No. TPAs will not be able to perform any actions on behalf of employers until they are given access to the employer account. Once linked to an employer account, TPAs can be assigned any combination of roles and responsibilities inside the employer account.

Yes. Account history data from the current year and the previous five years will be available in the employer portal when the new MyUI Employer+ system is live. Searchable data includes payment history, beneftis charges, and more.

Older data may be obtained by contacting the Employer Services line at 303-318-9100.


Bulk Filings

In most cases TPAs will upload bulk files inside MyUI Employer+. Updated file specification sheets are available for all acceptable file types including, Delimited, ICESA, EFW2, XML, and Zero Wage (delimited) formats.

Bulk files smaller than 20mb will be uploaded inside MyUI Employer+. TPAs submitting files larger than 20mb will be required to upload using Amazon Web Services (AWS). Bulk files uploaded inside the system will be applied to the account immediately. Files uploaded using AWS will be applied to the account within 48 hours of the submission.

MyUI Employer+ automatically calculates the amount owed based on the employers' rates and submitted wage reports. Payments can be made immediately after bulk files have been applied to the account.

 Bulk files will be rejected due to critical errors including:

  • Missing Employer Account Number (EAN)
  • Invalid EAN (either number does not exist, or invalid characters used)
  • Incorrect year and quarter (either before the business start date or a future quarter)
  • TPA not authorized to file wage reports for an EAN included in the file
  • Duplicate Social Security Number (SSN)
  • Invalid SSN (Not meeting Social Security Administration guidelines)

Non-critical errors such as missing first or last name will not prevent the file from uploading.

Yes. All adjustments and amendments can be made inside MyUI Employer+. In many cases, adjustments will be implemented immediately. However, some adjustments may require staff validation before implementation.

TPAs submitting files greater than 20MB will need to submit wages via the AWS Transfer Family FTP process. These reports may require overnight batch and will be due by 10PM MST on the quarterly due date. A sample output file can be found here (link). Please contact Employer Services by calling 303-318-9100 if you anticipate needing to utilize the FTP wage submission process.

See an example output file for formatting information.



No, premium reports are no longer required. MyUI Employer+ will automatically calculate amounts owed based on submitted wage reports, and employer rates. 

Yes. TPAs can make bulk EFT payments inside MyUI Employer+. TPAs can also save banking information at the TPA account level, and the employer account level to streamline future payments. Future payments can also be scheduled online.

Paper checks will also be accepted when submitted with the required paper check voucher.


Claims Correspondences

Yes. Employers can search, view, and respond to fact-finding requests and claims inside MyUI Employer+. Users may also authorize SIDES for all claims responses.

Employers can submit protests and appeals inside MyUI Employer+. Employers can search benefits charges using a variety of search criteria in the search function inside the employer portal.

Correspondences from the UI Division, including claims correspondences, will be available inside MyUI Employer+. Correspondences can be searched, viewed and accessed in the employer inbox, and correspondences tabs from the Employer portal homepage.


More Frequently Asked Questions

TPAs will no longer be able to submit bulk paper filings after the launch of the new system. All correspondence to and from the UI Division will now be delivered electronically, according to state mandates.

Employers must apply for a non-electronic correspondence waiver to continue submitting paper filings. Waivers expire annually and must be renewed.

Waivers may be requested from Employer Services at 303-318-9100 (Denver metro) or 1-800-480-8299 (toll free).

The UI premium and wage reporting system has not changed in more than 40 years. Modernizing the system streamlines the way employers and TPAs conduct business with the UI Division.

TPAs experiencing issues with their MyUI Employer+ account, or have additional questions about the new system can submit a TPA help request form. Help request forms will be answered by division staff in the order they are received.
For additional assistance, contact the Employer Service Modernization team via email to cdle_ui_modernization@state.co.us.