TRICARE covers dependent children until their 21st birthday, or until age 23 if they are unmarried full-time college students whose sponsor provides more than half of their support. Spouses stay covered as long as the marriage is legally intact. Paid extensions can carry a young adult to age 26, bridge a separating family for 180 days or longer, and continue coverage indefinitely for a dependent with a qualifying disability. How long TRICARE covers dependents in any particular family comes down to the dependent’s category, the sponsor’s status, and whether a handful of enrollment deadlines are met on time.
Age Limits for Children
The baseline set by federal law is the 21st birthday. It applies to biological children, adopted children, and children placed in the sponsor’s legal custody by court order for at least 12 consecutive months.1Office of the Law Revision Counsel. 10 U.S.C. 1072 – Definitions The cutoff is automatic. No warning letter goes out. One day the child has coverage, the next day they don’t.
Full-time college students get extra time. If the dependent is enrolled full-time at an approved institution, TRICARE continues until the 23rd birthday or graduation, whichever comes first. The student must be unmarried, and the sponsor must provide more than half of the child’s financial support, documented at a military ID card issuing facility.2TRICARE. Going to College There is no grace period after graduation or the 23rd birthday, so a follow-on plan needs to be lined up before that date.
Stepchildren
Stepchildren are eligible only while the sponsor remains married to the child’s biological parent. The moment a divorce is finalized, an unadopted stepchild loses TRICARE. If the sponsor has legally adopted the stepchild, coverage continues on the same terms as any other adopted child regardless of the divorce.3TRICARE. Children This catches families off guard. The sponsor’s biological children stay covered whatever happens to the marriage; stepchildren do not.
Children with Disabilities
The age limits don’t apply when a dependent child has a mental or physical condition that makes them incapable of self-support, provided the condition began before the child would have otherwise aged out at 21 or 23. Coverage can then continue indefinitely.1Office of the Law Revision Counsel. 10 U.S.C. 1072 – Definitions
The status requires a physician’s medical sufficiency statement dated within 90 days of the application, confirming that the dependent is incapable of self-support and whether the condition is permanent. The sponsor must also show that they provide more than half of the dependent’s support.4Defense Finance and Accounting Service. Secondary Dependency – Incapacitated Child
Recertification is required on a schedule that depends on the benefits the sponsor draws. Sponsors collecting BAH for the dependent recertify annually. Sponsors whose dependent holds a Uniformed Services ID card recertify every four years. Missing a recertification suspends benefits and can create a debt if care is received during the lapse.4Defense Finance and Accounting Service. Secondary Dependency – Incapacitated Child
How Long a Spouse Is Covered
A current spouse stays covered for the entire duration of the marriage. There is no age limit, no renewal, and no separate premium for a spouse on an active duty sponsor’s plan. Coverage ends when the marriage legally ends.
Former Spouses After Divorce
Whether a former spouse keeps TRICARE depends on how the marriage lines up with the sponsor’s military service and when the divorce was finalized.
The 20/20/20 rule gives a former spouse lifetime TRICARE if the marriage lasted at least 20 years, the sponsor served at least 20 years of creditable service, and those 20 years fully overlapped. The former spouse must remain unmarried and must not enroll in an employer-sponsored health plan.1Office of the Law Revision Counsel. 10 U.S.C. 1072 – Definitions
The 20/20/15 rule applies when the marriage lasted at least 20 years, the sponsor served at least 20 years, and the overlap was at least 15 years but less than 20. For divorces finalized before April 1, 1985, coverage continues indefinitely. For divorces finalized on or after April 1, 1985, coverage lasts only one year from the final decree.1Office of the Law Revision Counsel. 10 U.S.C. 1072 – Definitions
Remarriage permanently ends TRICARE eligibility under both rules. If the new marriage later ends in divorce or death, the former military spouse does not regain TRICARE through the original military marriage.5TRICARE. Former Spouses The decision is irreversible.
TRICARE Young Adult: Coverage from 21 to 26
Once a child ages out of standard TRICARE at 21 or 23, the TRICARE Young Adult program offers a paid extension up to age 26. The young adult must be unmarried and not eligible for a health plan through their own employer. The statute cross-references the IRS definition of an eligible employer-sponsored plan, so being offered coverage at work can disqualify someone whether or not they enroll.6Office of the Law Revision Counsel. 10 U.S.C. 1110b – TRICARE Program Extension of Dependent Coverage
Enrollment is not automatic. The application has to be filed within 30 days of losing standard TRICARE to avoid a gap.7eCFR. 32 CFR 199.26 – TRICARE Young Adult Two options are available, each with monthly premiums paid directly:
- TYA Prime: $794 per month in 2026
- TYA Select: $363 per month in 2026
Both are member-only premiums; family coverage is not available under TYA.8TRICARE. TRICARE 2026 Costs and Fees Sheet At nearly $800 a month for Prime, marketplace plans are worth comparing, especially for a healthy young adult who mostly needs routine care.
Coverage After a Sponsor Separates
Separating from active duty doesn’t cut off TRICARE immediately, but the bridge programs have hard deadlines.
TAMP: 180 Days After Separation
The Transitional Assistance Management Program provides 180 days of premium-free TRICARE starting the day after the sponsor separates. Families are covered as active duty family members with the same plan rules, cost-shares, and access to military treatment facilities.9TRICARE. Transitional Assistance Management Program
Not every separating service member qualifies. TAMP covers specific categories, including involuntary separations and certain Reserve component members leaving active duty. A voluntary separation may not qualify, so eligibility should be confirmed before assuming the 180 days apply.
CHCBP: 18 or 36 Months of Paid Coverage
When TAMP ends, the Continued Health Care Benefit Program offers a temporary paid extension similar to civilian COBRA. Depending on the beneficiary category, CHCBP lasts 18 or 36 months. It is also open to dependents who age out of TRICARE, former spouses who lose eligibility after divorce, and members discharged under non-adverse conditions.10Office of the Law Revision Counsel. 10 U.S.C. 1078a – Continued Health Benefits Coverage
The cost is steep. For 2026, CHCBP premiums are $2,103 per quarter for an individual and $5,339 per quarter for family coverage.11TRICARE. Continued Health Care Benefit Program Enrollment must happen within 60 days of losing TRICARE or TAMP eligibility.12TRICARE. Separating from Active Duty Miss the 60 days and the option disappears entirely.
Coverage After a Sponsor’s Death
When an active duty sponsor dies, surviving spouses and children become transitional survivors for three years. During that period, the family stays covered as active duty family members at no premium and with no change to plan options.13TRICARE. Survivors of Active Duty Service Members
After the three years, surviving children continue to be covered as active duty family members until they age out under the same 21/23 rules that apply to every dependent, and they can then purchase TRICARE Young Adult up to age 26.14TRICARE. Surviving Children Who May Qualify for TRICARE Young Adult
A surviving spouse keeps TRICARE until they remarry.15TRICARE. Survivors Costs and plan options shift with the sponsor’s status at the time of death, but the underlying benefit continues as long as the spouse remains unmarried.
Deadlines That Cause Coverage Gaps
Most coverage losses aren’t caused by ineligibility. They’re caused by paperwork.
- TRICARE Young Adult: apply within 30 days of losing standard TRICARE. A late application creates a gap that can’t be backdated.7eCFR. 32 CFR 199.26 – TRICARE Young Adult
- CHCBP: enroll within 60 days of losing TRICARE or TAMP eligibility.12TRICARE. Separating from Active Duty
- DEERS updates: add newborns within 30 days of birth, and report marriages, divorces, and other status changes promptly.16milConnect. FAQ – Life Events Children
Eligibility runs through the Defense Enrollment Eligibility Reporting System. If DEERS doesn’t reflect a dependent’s current status, claims get denied even when the person is technically eligible.
Using TRICARE After Eligibility Ends
If a dependent receives care after eligibility has expired, TRICARE will seek repayment for every dollar it paid. The regional contractor sends a written demand, and the beneficiary has 30 days to respond. If the debt isn’t resolved within 150 days, the case moves to Defense Health Agency Claims Collection, which can garnish military retired pay, offset other federal payments, pursue legal action, and report the debt to credit bureaus.17TRICARE. Recoupment of Overpayments
This happens routinely when a child turns 21 and no one updates DEERS, or when a former spouse remarries and keeps using TRICARE. Collection is mandatory under the Federal Claims Collection Act, and the government has limited ability to settle for less than the full amount. The way to avoid it is to keep DEERS current and switch to a new plan before eligibility ends rather than after.