TRICARE for Disabled Adult Children: Eligibility & Rules
## Quick answer Unmarried children who become incapacitated before age 21 (or age 23 if a full-time student) can remain eligible for TRICARE benefits indefinitely as "incapacitated adult children." This status allows them to retain health coverage under their sponsor’s plan well past the standard age limits, provided the disability is permanent and they remain dependent on the sponsor for financial support.
*Note: TRICARE.com is an independent reference site and is not affiliated with the Department of Defense. Visit TRICARE.mil for official policy updates.*
Details
TRICARE standardly ends coverage for children at age 21 (or 23 for students). However, a "Secondary Dependency" status allows disabled adult children to stay on the plan if specific medical and financial criteria are met.
### Eligibility Criteria To qualify as an incapacitated adult child, the individual must: * Be unmarried. * Have an incapacity that occurred before their 21st birthday (or before age 23 if enrolled in college at the time of onset). * Be incapable of self-support due to a mental or physical disability. * Be dependent on the TRICARE sponsor for more than 50% of their financial support.
### The Application Process The process is handled by the Uniformed Services' claims office or the Defense Finance and Accounting Service (DFAS), not the TRICARE contractors. 1. **Medical Sufficiency:** A physician must provide a letter or statement documenting that the disability is permanent and began before the age limit. 2. **Financial Dependency:** You must submit a "Dependency Affidavit" (typically DD Form 137-5) along with proof of income and expenses to show the child relies on the sponsor. 3. **DEERS Update:** Once the service branch approves the dependency status, the child’s record in the Defense Enrollment Eligibility Reporting System (DEERS) will be updated to reflect permanent eligibility.
### Plan Options and Costs An approved adult child is eligible for the same plans as the sponsor’s other dependents. * **Active Duty Families:** Usually enrolled in TRICARE Prime (no enrollment fees) or TRICARE Select. * **Retiree Families:** If the sponsor is retired, the adult child may be subject to retiree dependent cost-shares. For 2026, TRICARE Select Group A retiree premiums and catastrophic caps apply based on the sponsor's status. * **Medicare Coordination:** If the adult child qualifies for Medicare due to their disability, they **must** enroll in Medicare Part B to keep TRICARE. At that point, their coverage becomes **TRICARE For Life (TFL)**, which acts as a second payer to Medicare.
### Recertification Dependency status is not always permanent. Depending on the nature of the disability, the military branch may require medical and financial recertification every 1 to 4 years to ensure the child still meets the "incapable of self-support" criteria.
## Who this affects * **Active Duty Service Members:** With children who have developmental or physical disabilities diagnosed in childhood. * **Military Retirees:** Who are still providing primary support for an adult disabled child. * **Survivors:** Children of deceased sponsors can maintain coverage if accurately registered in DEERS. * **National Guard and Reserve:** Beneficiaries under TRICARE Reserve Select or TRICARE Retired Reserve.
## Sources * **TRICARE.mil:** [Incapacitated Children Overview](https://www.tricare.mil/incapacitatedchildren) * **DFAS.mil:** [Secondary Dependency Claims](https://www.dfas.mil/militarymembers/SecondaryDependency/SD_Resources/) * **TriWest Healthcare Alliance:** [West Region Beneficiary Services](https://www.triwest.com) * **Humana Military:** [East Region Eligibility Guidelines](https://www.humanamilitary.com)