TRICARE For Life (TFL) is a wraparound coverage for Medicare-eligible military retirees and their dependents. Medicare is your primary payer; TRICARE For Life is secondary. Together, they cover virtually all healthcare costs with very low out-of-pocket expense — making this one of the most generous benefit combinations in the U.S. healthcare system.
Eligibility for TRICARE For Life:
- Military retirees age 65+ AND eligible for Medicare
- Spouses age 65+ of military retirees AND eligible for Medicare
- Surviving spouses age 65+ of military retirees AND eligible for Medicare
- Disabled retirees and dependents on Medicare due to disability
- Must be enrolled in Medicare Parts A AND Part B (Part B is required)
How payment coordination works:
- Medicare processes the claim first (as primary payer)
- Medicare pays its share — typically 80% of the Medicare-approved amount after the Part B deductible
- TRICARE For Life automatically processes as secondary
- TFL pays whatever Medicare didn't cover — typically the 20% Medicare coinsurance, the Part B deductible, and other gaps
- Member pays $0 for most Medicare-covered services
Medicare and TFL claims are coordinated automatically through the COB system — no paperwork required from you.
What Medicare + TFL covers together:
- All Medicare Part A services (hospital, SNF, hospice, home health)
- All Medicare Part B services (outpatient, doctor visits, DME, lab work)
- Most Medicare deductibles and coinsurance amounts
- Some services not covered by Medicare:
Out-of-pocket with Medicare + TFL:
For Medicare-covered services:
- Part A deductible: $0 (TFL covers)
- Part B deductible: $0 (TFL covers)
- 20% Medicare coinsurance: $0 (TFL covers)
- TFL deductible: $150/individual per fiscal year (Oct 1 - Sep 30)
- TFL catastrophic cap: $4,206 per family per fiscal year (2026)
In practice, most TFL beneficiaries pay $0 for most healthcare events because Medicare-covered services don't apply to TFL deductible. The $150 TFL deductible only applies to services TFL covers but Medicare doesn't.
Pharmacy coverage — TRICARE Pharmacy Program:
- Separate from Part D
- Covers prescriptions through:
- TRICARE pharmacy is generally MORE comprehensive than standalone Part D
- You generally should NOT also enroll in Part D — TRICARE pharmacy is creditable coverage
- Late enrollment in Part D doesn't apply to TRICARE pharmacy holders
Should TFL beneficiaries enroll in Part D?
No, in most cases. TRICARE pharmacy is comprehensive and lower-cost than most Part D plans. Adding Part D would mean paying premiums for redundant coverage.
Exceptions:
- If you take a drug not covered by TRICARE pharmacy formulary
- If you live far from a military pharmacy and prefer different retail pharmacy options
- Some specialized situations
Should TFL beneficiaries enroll in Medicare Advantage?
Generally no. Medicare Advantage replaces Original Medicare. With MA:
- Your MA plan becomes primary
- TFL becomes secondary to MA
- TFL won't pay your MA's deductibles, copays, or coinsurance
- Most TFL benefits become moot
Keeping Original Medicare + TFL is almost always better for TFL beneficiaries than switching to Medicare Advantage.
Should TFL beneficiaries get Medigap?
No. TFL is your Medigap equivalent — it fills Medicare's gaps. Adding Medigap would be paying premiums for redundant coverage.
Critical decisions and traps:
1. Don't drop Part B to save money.
Some retirees consider dropping Part B (saving $202.90/month in 2026) and relying on TRICARE Standard or Prime. This DOESN'T work — Part B is required for TFL eligibility. Drop Part B and you lose TFL.
2. Be careful with Medicare Advantage marketing.
MA plans aggressively market "$0 premium" plans to seniors. For TFL beneficiaries, these are usually a downgrade. The marketing material rarely explains the TFL implications.
3. Keep TFL information updated.
Report address changes, marriage/divorce/death of spouse, disability changes. Failures can interrupt coverage.
4. Coordinate with VA benefits if applicable.
Many retirees also have VA healthcare. VA care, Medicare, and TFL coordinate but rules are complex. Generally:
- VA is best for VA-care needs (specialized programs, prescriptions, certain conditions)
- Medicare + TFL is best for non-VA providers and most acute care
- Don't try to use both for the same service
Foreign coverage:
Medicare does NOT cover most foreign care. TFL DOES cover foreign care (with TRICARE provider rules). For overseas travel:
- Routine care: TFL pays as primary (Medicare doesn't apply)
- Emergency care: TFL pays
- Higher costs may apply; TFL limits and provider choice rules
Surviving spouse coverage:
TFL continues for surviving spouses age 65+ as long as they remain unmarried (or remarry after age 55). Medicare eligibility requirements still apply.
Resources:
- TRICARE For Life website: tricare.mil/Plans/HealthPlans/TFL
- Wisconsin Physicians Service (WPS): TFL claims contractor, 1-866-773-0404
- Defense Manpower Data Center (DMDC): for eligibility verification, 1-800-538-9552
What to do next: Call (866) 534-1886. We help military retirees and dependents understand the Medicare + TRICARE For Life interaction, coordinate VA benefits where applicable, and avoid the Medicare Advantage marketing trap that would degrade their coverage. Free.