Dependent Verification

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What to know about dependent verification

Make sure your dependents have continued benefit coverage!

T-Mobile is proud of the benefits we offer and keeping costs down helps maintain a competitive health care plan for all employees. Unfortunately, we can't cover everyone. Medical benefits are very costly and covering people who are not eligible dependents raises the cost for our health plans, which directly influences the cost that all employees and T-Mobile pay for coverage.

What is a Dependent Verification?

Full dependent verification is a commonly used practice to verify all dependents newly enrolled in our benefit plans are eligible for coverage. Employees are required to provide documentation to validate the relationship between the employee and the dependent.

Step 1: Communication Materials

You will receive communication materials that outline what you need to do to comply with the verification. Read these materials carefully and take note of the dependents you are required to verify.

Step 2: Documentation Required

For spouse/partner, two documents are required. Pick one from section A and one from section B.

Document A

Government-Issued Marriage Certificate (document B not required if married in past 12 months)
Affidavit of Domestic Partnership or Government-Issued Domestic Partner Registry Certificate
Affidavit of Common Law Marriage

Document B

Federal Tax Return within last 2 years listing your spouse or partner
Proof of Joint Ownership issued within the last 6 months (see below list)

Proof of Joint Ownership

Provide one of the following issued within the last 6 months that has both names listed, OR two individual documents showing each person's name with shared address.

Mortgage Statement

Bank statement (bank account verification letter showing active status)

Active lease agreement

Homeowners Insurance

Renters Insurance

State Tax Return (within 1 year)

Credit card statement (includes department stores and care credit)

Utility Bills

Property tax

Current-year state tax return listing spouse/partner

Current-year mortgage interest/mortgage insurance

Warranty deed

Auto loans

Current-year federal tax return listing the spouse/dependent

For child(ren), submit the following:

Biological Child: Government-Issued Birth Certificate
Adopted Child: Adoption Certificate or Placement Agreement
Step-Child: Government-Issued Birth Certificate AND both documents to verify Spouse or Partner
Legal Ward: Government-Issued Birth Certificate AND Court Ordered Document of Guardianship
Disabled Child: Documentation listed above AND Federal Tax Return within 2 years claiming child

Step 3: Submitting Documentation

Submit your documents online for faster verification. When you are ready to submit your documents, log on to the enrollment site, go to the Dependent Verification page, and click on the "I'm ready to verify my dependents" tile.

Step 4: Tracking Your Submission

The Dependent Verification Center will review your submitted documentation. You can view status by logging on to the enrollment site. We will also notify you of your status via U.S. mail.

What is a Dependent Reverification Process?

The reverification activity is for dependents whose eligibility may change over time, like when a relationship ends – spouses, domestic partners, children of a domestic partner, or stepchildren. Every 3 years employees will need to validate that their dependent remains eligible.

Note: it is still expected that employees will proactively remove a dependent when they become ineligible. This process is intended to identify anyone missed.

The reverification process is a streamlined version of the current process. Employees will not need to provide government documents because they were already provided in the past (such as birth or marriage certificates). They will only need to provide a copy of their taxes or proof of joint ownership to confirm current status.

Step 1: Communication Materials

You will receive communication materials that outline what you need to do to comply with the verification. Read these materials carefully and take note of the dependents you are required to verify.

Step 2: Documentation Required

If you have verified your listed dependent(s) in the past, validating current eligibility has been streamlined. The following documents will satisfy the reverification requirement:

Mortgage Statement

Bank statement (bank account verification letter showing active status)

Active lease agreement

Homeowners Insurance

Renters Insurance

State Tax Return (within 1 year)

Credit card statement (includes department stores and care credit)

Utility Bills

Property tax

Current-year state tax return listing spouse/partner

Current-year mortgage interest/mortgage insurance

Warranty deed

Auto loans

Current-year federal tax return listing the spouse/dependent

Step 3: Submitting Documentation

Step 4: Tracking Your Submission

The Dependent Verification Center will review your submitted documentation. You can view your status by logging on to the enrollment site. We will also notify you of your status via U.S. mail.

Disabled Dependent Process (Age 26+)

1. Employee contacts the Benefits Center to start the request, and employees are directed to contact their respective carrier for the disabled dependent form.

Important:
- UHC enrollees call (877) 259-1527 to request the form.
- Premera enrollees call (866) 358-2300 to request the form.

2. Timing:

The application can be reviewed up to six months prior to the dependent’s 26th birthday (two months for Premera enrollees).
The completed form must be received no later than 31 days following dependent’s 26th birthday.

3. Form completion:

A portion of the form is completed by the employee.
A portion is completed by the dependent’s physician.
Include supporting documentation when submitting the form.

4. Employee submits:

The completed form and documentation to the medical plan vendor (UHC or Premera) for clinical review.

5. Vendor review process:

Clinical review typically takes 30 business days once all required information is submitted.
The vendor will notify the employee of the decision via letter (US Mail).
Depending on the nature of the disability, reverification may be required every 1–3 years.

Premera or UHC responds:

If approved:
- Vendor certifies dependent through the next plan year (or as indicated).
- Vendor emails approval to BSC.
- BSC updates the case, enrolls the dependent in selected health plans, and triggers Dependent Verification (if applicable).

If denied:
- Vendor notifies employee and emails denial to BSC.
- BSC updates the case.

Childcare Subsidy (CCS) Disabled Dependent Process (Age 13-25)

Employee contacts The Benefits Center to start the request.
The Benefits Center directs the employee to the Premera form in the Reference Center. Premera will conduct reviews for every member enrolled in any T-Mobile medical plan.
Employee submits the completed form to Premera.
Premera reviews and responds.

If approved:

Premera notifies employee and certifies dependent through the next plan year (or as indicated).
Premera emails approval to BSC.
BSC updates the case, enrolls the dependent in CCS, and triggers Dependent Verification (if applicable).

If denied:

Premera notifies employee and emails denial to BSC.
BSC updates the case.

If pending or resubmitted:

Premera works with the employee to resubmit the necessary documentation. BSC will be notified only after the request is approved/ denied. For questions or status updates, employee should contact Premera directly.

Verification Tips:

Birth certificates must be government-issued and must include parents' names.
Proofs of Joint Ownership issued within the last 6 months include mortgage statements, bank statements, credit card statements, rental/lease agreements or property tax statements with both parties' names as co-owners.
Send only the first page of your prior year Federal Tax Return (Form 1040) that shows your dependents, black out all financial information and Social Security numbers.
If you are mailing documentation, do not send original documents.

For More Information:

Access the Dependent Verification portal to check your verification status, view notices, upload documentation, view the Security and Privacy policy and more. If you have questions about the verification process, you can access the T-Mobile Benefit FAQs, or pose a question to a Dependent Verification representative via secure mailbox. You can also contact the T-Mobile Benefits Center at 1-855-TMO-BENS (1-855-866-2367). Representatives are available Monday - Friday from 5 a.m. to 5 p.m. Pacific Time.