Reviewed by the Rank and Pay editorial team on June 28, 2026.
TRICARE supplemental insurance is third-party coverage that pays the cost-sharing amounts TRICARE itself leaves behind — deductibles, copays, and amounts up to the catastrophic cap. These plans are sold by private associations and insurers, not the government, and they are separate from official TRICARE plan options like TRICARE Prime, Select, and For Life.
We evaluated supplement plans on four criteria: premium affordability, breadth of cost-sharing covered, eligibility rules, and plan stability. All plans listed are real, established carriers. No fabricated pricing — exact premiums change annually and should be confirmed directly with each carrier.
What Is TRICARE Supplemental Insurance?
TRICARE supplemental insurance is private coverage that wraps around your TRICARE benefit to pay what TRICARE does not. Under TRICARE Select, retirees pay an annual deductible and 20–25% of allowed charges per visit, until reaching the catastrophic cap ($3,500 for retirees in 2026). A supplement steps in to cover those out-of-pocket amounts.
These plans are not offered or sold by the Department of Defense. They come from military-affiliated associations (like USBA, MOAA, and SAMBA), federal employee benefit associations, and commercial insurers. You must have an underlying TRICARE plan for a supplement to work — it pays second, after TRICARE pays its share. For more on how TRICARE plans differ, see our guide to TRICARE plan options.
Military retirees under 65 on TRICARE Select face the highest exposure to out-of-pocket costs, making them the primary audience for supplements. Active-duty members on TRICARE Prime have near-zero cost-sharing and rarely need a supplement.
Best TRICARE Supplement Plans (2026)
1. USBA Supplement Plan — Best Overall
Best for: military retirees of all ranks who want broad coverage with no membership barrier
USBA (United Services Benefit Association) is one of the oldest military-affiliated benefit associations in the country, founded in 1959. Its TRICARE supplement plan covers TRICARE inpatient and outpatient deductibles, the 20–25% cost-shares under TRICARE Select, and amounts that count toward the catastrophic cap. USBA membership is open to all active-duty and retired military personnel and their families — no officer/enlisted restriction.
Strengths: no association membership requirement beyond USBA itself, straightforward billing (claims go directly through TRICARE coordination), long track record of serving military retirees.
Limitations: premiums rise with age; plan options can feel limited compared to newer entrants. Confirm current rates at usba.com.
Pricing posture: Individual plans typically start around $50–$100/month; family plans $100–$200/month. Rates vary by age and coverage tier — get a personalized quote.
2. MOAA Supplement Plan — Best for MOAA Members
Best for: commissioned and warrant officers (and their families) who are already MOAA members
MOAA (Military Officers Association of America) offers a group TRICARE supplement plan available to MOAA members. The plan is administered through a commercial carrier and covers TRICARE cost-shares similarly to USBA. MOAA's value is the bundled package: supplement coverage plus access to MOAA's legal services, financial planning resources, and legislative advocacy.
Strengths: strong association backing, coverage coordinated directly with TRICARE, credibility through MOAA's long-standing reputation in the military community.
Limitations: requires active MOAA membership (which carries its own annual fee). Open only to officers — enlisted retirees are not eligible for MOAA membership. Learn more at moaa.org.
Pricing posture: MOAA premiums are competitive with USBA for officer-grade retirees. Total cost includes the MOAA membership fee, which starts around $40/year for active-duty and varies for retirees.
3. SAMBA — Best for Federal Employees and Retirees Who Also Use TRICARE
Best for: veterans who served and then worked as federal civil servants, with TRICARE coverage as retirees
SAMBA (Special Agents Mutual Benefit Association) began as an association for FBI and law enforcement professionals. Over time it expanded to serve federal employees broadly. SAMBA offers a TRICARE supplement plan with competitive premiums and solid cost-share coverage. It's a less-known option but has a strong track record in the federal-employee community.
Strengths: well-established in the federal benefits space, coordinated TRICARE billing, competitive rates for federal retirees.
Limitations: historically more prominent in the civil-service community than the purely military community; fewer brand touchpoints for traditional military retirees. Visit samba.org for current plans.
Pricing posture: Comparable to USBA; exact premiums depend on plan tier and age.
4. GEHA (Government Employees Health Association) — Best Nationwide Network
Best for: federal retirees or surviving spouses needing a plan with a broad nationwide network and prescription coverage add-ons
GEHA is a major federal health benefit carrier best known for its FEHB (Federal Employees Health Benefits) plans, but it also offers supplemental coverage options relevant to TRICARE-eligible retirees. GEHA's network breadth is a standout — particularly for beneficiaries in rural areas or who move frequently post-retirement.
Strengths: vast nationwide provider network, strong pharmacy/prescription add-ons, name recognition in the federal benefits market.
Limitations: primary focus is FEHB; TRICARE supplement-specific options may be narrower than USBA or MOAA. Confirm availability and TRICARE coordination at geha.com.
Pricing posture: GEHA plans vary widely by tier; check directly for TRICARE-specific supplement pricing.
5. AUSA Supplement Plan — Best for Army Members
Best for: Army retirees who are AUSA members and want association-bundled coverage
AUSA (Association of the United States Army) offers member benefits that include access to supplement insurance products. Like MOAA, the value is bundled with association membership — advocacy, professional development, and social community alongside the insurance benefit. Primarily serves Army officers and senior NCOs.
Strengths: Army-community focus, association loyalty benefits, credibility.
Limitations: narrower audience than USBA; requires AUSA membership. Visit ausa.org for current benefit offerings.
Pricing posture: Competitive with other association plans for Army retirees.
6. Medigap Plans (for TRICARE For Life Beneficiaries Age 65+)
Best for: military retirees age 65+ who want extra coverage beyond what Medicare + TFL provides
TRICARE For Life (TFL) acts as a near-zero-cost secondary payer for military retirees who have Medicare Parts A and B. In most situations, TFL covers what Medicare does not, leaving very little out-of-pocket. However, retirees who want coverage for Medicare Part B deductible, international travel emergencies, or gaps in specific service categories sometimes add a Medicare Supplement (Medigap) plan on top.
Major Medigap carriers include AARP/UnitedHealthcare, Humana, Mutual of Omaha, and Blue Cross Blue Shield affiliates. The added value of Medigap over TFL alone is minimal for most beneficiaries but can matter for heavy utilizers. Compare VA health care vs TRICARE if you have both VA and TRICARE eligibility.
Strengths: fills niche TFL gaps, strong brand stability from major Medigap carriers.
Limitations: TFL already covers most Medicare cost-sharing for most retirees — adding Medigap premiums may cost more than you save. Do the math before buying.
Pricing posture: Medigap premiums vary widely by plan letter (Plan G, Plan N), insurer, and location — typically $80–$200+/month for a 65-year-old.
7. American Military University / Association-Sponsored Plans
Best for: veterans and retirees affiliated with smaller service-specific associations who want member-discounted supplement coverage
A range of smaller military associations and alumni groups (including branch-specific associations and school alumni networks) offer group supplement insurance benefits at member-discounted rates. These plans are often underwritten by established carriers but marketed through the association. Quality varies — always check the underwriting carrier's A.M. Best rating and confirm exactly what cost-sharing amounts the plan covers.
Strengths: member pricing, community connection.
Limitations: plan quality varies significantly; underwriter stability matters more than the association name on the front of the card. Always verify the carrier behind the plan.
Quick Comparison Table
| Plan | Best For | Eligibility | Covers Cost-Shares? | Approx. Monthly Premium |
|---|---|---|---|---|
| USBA | Best overall | All military/retirees | Yes — deductibles + cost-shares | ~$50–$100+ (individual) |
| MOAA | MOAA members / officers | Officers + warrant officers | Yes — TRICARE cost-shares | Competitive; + MOAA dues |
| SAMBA | Federal civil-service retirees | Federal employees/retirees | Yes — deductibles + cost-shares | Comparable to USBA |
| GEHA | Wide network / rural retirees | Federal/military retirees | Yes — varies by tier | Varies — check geha.com |
| AUSA | Army retirees | AUSA members | Yes — association plan | Competitive + AUSA dues |
| Medigap | TFL beneficiaries age 65+ | Must have Medicare A+B | Medicare gaps (not TRICARE) | ~$80–$200+ (age-dependent) |
| Association Plans | Branch-specific members | Varies by association | Varies — check carrier | Varies widely |
Who Needs a TRICARE Supplement?
A TRICARE supplement saves the most money for military retirees under 65 who are on TRICARE Select and use healthcare regularly. Under TRICARE Select, the retiree catastrophic cap is $3,500 per year — meaning your maximum out-of-pocket per family is $3,500 annually. If your projected annual medical spending is a small fraction of that, the supplement's premiums might outweigh what you'd actually save.
Run this simple check before buying: estimate your typical annual out-of-pocket spending under TRICARE Select (count copays, specialist visits, and prescription costs). Compare that number to the supplement's annual premium cost. If your out-of-pocket estimate exceeds the premium, a supplement is likely worth it. A non-obvious cost the supplement covers that most comparisons miss: the inpatient "per day" cost-share for hospitalizations, which can hit quickly for any retiree needing surgery or extended care.
Active-duty members on TRICARE Prime rarely need a supplement — cost-sharing is near zero on Prime. Veterans who also qualify for VA health care should compare VA health care vs TRICARE before paying for a supplement at all.
For a deeper look at how TRICARE plans work, see our TRICARE options guide. For life insurance considerations alongside your healthcare plan, see our military life insurance guide.
Ranked Verdict
- Best overall: USBA — open to all military/retirees, straightforward coverage, long track record.
- Best for officers: MOAA — strong bundled value if you're already a MOAA member.
- Best for federal civil-service retirees: SAMBA — solid in the federal-employee market.
- Best for wide geographic access: GEHA — national network depth for rural or frequently-moving retirees.
- Best for Army retirees: AUSA — community-driven, branch-specific appeal.
- Best for TFL beneficiaries (65+): In most cases, TRICARE For Life already covers Medicare gaps — evaluate whether a Medigap supplement adds enough value for your specific utilization before buying.
- Best budget approach: If you're a low-utilizer on TRICARE Select, skip the supplement and self-insure up to the $3,500 catastrophic cap. For high utilizers, any of the top-tier plans above covers the gap at a fraction of the cap cost.
Always get a current premium quote directly from the carrier before enrolling. Premiums change annually, and your age at enrollment affects your rate. The plans listed here have established track records — but verify their current A.M. Best financial-strength rating before committing.
Ready to understand your full TRICARE picture? Start with our TRICARE options guide to confirm which TRICARE plan you're on, then return here to compare supplements.