tricare for life and medicare are designed to work as one package, not as two separate choices. TRICARE For Life (TFL) is wraparound coverage that sits behind Medicare. Medicare processes the claim first, and TFL picks up much of what Medicare leaves behind. But that wraparound only switches on if you hold Medicare Part A and Medicare Part B. This is where many retirees and spouses get caught. Part B is not an optional add-on in this arrangement.
- How Tricare For Life And Medicare Works
- Who Pays First, and Where
- Tricare For Life And Medicare: What Happens If You Skip Part B
- Prescriptions Under Tricare For Life And Medicare
- Getting Free Help
- Frequently Asked Questions
- Key Takeaways: Tricare For Life And Medicare
- Where to Get Free Help
- Official Sources & Resources
- Related Guides
For most people entitled to premium-free Part A, keeping Part B is the condition for keeping TRICARE at all. This guide explains how tricare for life and medicare fit together, who pays first in each setting, and what you should confirm before you make a decision.
How Tricare For Life And Medicare Works
TFL is available to TRICARE-eligible beneficiaries who have both Medicare Part A and Part B, regardless of age or where they live. There is no enrollment fee for TFL itself. TRICARE explains the basic structure on its TRICARE For Life page.
What you do pay is the Medicare Part B premium. For 2026, CMS set the standard Part B premium at $202.90 per month and the annual Part B deductible at $283, according to the 2026 Medicare Parts A & B Premiums and Deductibles fact sheet. Higher-income beneficiaries pay more through IRMAA. Confirm your own amount with Social Security at 800-772-1213.
Two rules matter most when you look at tricare for life and medicare together. First, if you are entitled to premium-free Medicare Part A, you generally must have Part B to keep TRICARE. Second, that requirement applies even overseas, where Medicare itself pays nothing. TRICARE describes both on its Beneficiaries Eligible for TRICARE and Medicare page.
There are narrow exceptions. If you are 65 or older but your sponsor is still on active duty, TRICARE says you do not need Part B until the sponsor retires. Ask TRICARE whether your situation qualifies before you skip anything.
Your record must also be correct in DEERS. Update it online or call 800-538-9552. A stale DEERS record can stop TFL claims even when your Medicare coverage is active.
Who Pays First, and Where
Payment order changes by setting. That single fact explains most surprise bills under tricare for life and medicare. Medicare’s own Who pays first page covers the general coordination rules.
| Setting | Who pays first | What you may owe |
|---|---|---|
| Civilian hospital or doctor that accepts Medicare | Medicare pays first, TFL pays second | Often nothing for services both cover |
| Civilian provider that has opted out of Medicare | Medicare pays nothing, TRICARE pays as second payer only | Potentially a large balance |
| VA facility, service-connected care | VA provides the care | Generally no VA copay for service-connected care |
| VA facility, nonservice-connected care | Medicare cannot pay a government facility; TRICARE pays up to 20% of the TRICARE-allowable charge | The remaining balance billed by VA |
| Military pharmacy | TRICARE Pharmacy Program | $0 for covered drugs |
| Retail or mail-order pharmacy | TRICARE Pharmacy Program | The TRICARE copayment for that tier |
| You also hold other health insurance | That plan first, Medicare second, TRICARE last | Whatever remains after all three |
The VA line is the one to read twice. TRICARE’s Using TRICARE For Life at Veterans Affairs Facilities page explains that Medicare will not pay at a VA facility. To have TFL bill applied, VA may ask you to sign VA Form 10-493a, TRICARE For Life Affirmation. Ask the VA billing office what you will owe before the appointment.
Tricare For Life And Medicare: What Happens If You Skip Part B
If you are entitled to premium-free Part A and you decline Part B, TRICARE coverage generally ends. TFL does not stand alone. Losing it does not end your VA health care, but it does end the wraparound behind Medicare for civilian care.
The gap is wide. Without TFL and without Part B, Medicare Part A covers inpatient hospital care only. Doctor visits, outpatient surgery, labs, imaging and durable medical equipment sit under Part B. A spouse who is not a veteran has no VA fallback at all.
There is also a lasting cost. Medicare charges a Part B late enrollment penalty of 10% of the standard premium for each full 12-month period you could have had Part B and did not. It is added for as long as you keep Part B. See Medicare’s page on how to avoid late enrollment penalties.
Timing is not open-ended. If you miss your Initial Enrollment Period, the General Enrollment Period runs January 1 through March 31 each year. You enroll using Form CMS-40B, Application for Enrollment in Medicare Part B, filed with Social Security. Instructions are on the SSA Sign up for Part B only page.
If you are claiming a Special Enrollment Period based on group coverage from current employment, Social Security also asks for Form CMS-L564, Request for Employment Information, signed by the employer. Ask Social Security which enrollment period applies to you and when your coverage would start.
Reinstating TRICARE after a lapse is a separate process from Medicare enrollment. Contact the TRICARE For Life contractor and DEERS to ask what reinstatement requires in your case. Do not assume it is automatic once Part B begins.
Prescriptions Under Tricare For Life And Medicare
With TFL, your drug coverage comes through the TRICARE Pharmacy Program. TRICARE states that you do not need Medicare Part D to have prescription coverage. Details are on the TRICARE pharmacy eligibility page for Medicare-eligible beneficiaries.
TRICARE pharmacy coverage is creditable prescription drug coverage. So is VA pharmacy coverage. Creditable means it is expected to pay at least as much as standard Medicare drug coverage, as described on Medicare’s creditable coverage page.
That matters because of the Part D late enrollment penalty. It applies after 63 or more days in a row without creditable drug coverage. Keeping TFL or VA pharmacy coverage protects you from that clock. Keep the annual creditable coverage notice you receive.
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Some people still buy a Part D plan because it covers a specific drug TRICARE does not. That is a personal cost comparison, not a requirement. Do not drop Part B to pay for it.
Note the split: VA pharmacy fills VA-prescribed drugs, and TRICARE pharmacy fills the rest. You can use both, but not for the same prescription at the same time. VA explains how its benefits sit alongside other coverage on its VA health care and other insurance page.
Getting Free Help
You do not have to sort tricare for life and medicare out alone. An accredited Veterans Service Officer helps at no charge. VSO representation on a VA claim is always free. Use the VA Find a VA accredited representative or VSO tool to locate one near you.
To appoint a VSO organization, you file VA Form 21-22. To appoint an individual representative, attorney or claims agent, you file VA Form 21-22a. Never pay a fee to file an initial VA claim.
For the Medicare side, contact your State Health Insurance Assistance Program (SHIP). SHIP counseling is free and unbiased. Find your state’s SHIP through Medicare at 1-800-MEDICARE (1-800-633-4227).
Other numbers worth keeping: VA benefits at 800-827-1000, VA health care at 877-222-8387, DEERS at 800-538-9552, and Social Security at 800-772-1213 for Part B enrollment and premiums.
Frequently Asked Questions
Do I really need Part B if I use the VA for everything?
If you want to keep TRICARE, yes. TRICARE says most beneficiaries entitled to premium-free Part A must have Part B to remain eligible. VA care alone does not preserve TFL. Ask a VSO to review your specific eligibility record.
My spouse is not a veteran. Does the same rule apply?
Generally yes. TFL eligibility for a retiree’s spouse also depends on having Part A and Part B. A spouse has no VA health care to fall back on. Confirm the spouse’s status in DEERS and with TRICARE.
Will I owe anything at a civilian hospital?
For services that both Medicare and TRICARE cover, Medicare pays first and TFL usually pays the remaining amount. If a service is covered by only one of them, you may owe a share. Ask the provider whether they accept Medicare before treatment.
I skipped Part B years ago. Can I fix it now?
You can apply during the General Enrollment Period, January 1 through March 31, using Form CMS-40B, or during a Special Enrollment Period if one applies. A late enrollment penalty may apply. Ask Social Security to confirm your penalty amount and coverage start date, and ask TRICARE what reinstating TFL would require.
Key Takeaways: Tricare For Life And Medicare
- VA care is not Medicare. tricare for life and medicare matters because VA coverage works only at VA facilities.
- Part B is often required. With tricare for life and medicare, dropping Part B can end other coverage entirely.
- Civilian hospitals need Medicare. Emergency care outside the VA is where tricare for life and medicare protects the veteran.
- Prescriptions can come from both. tricare for life and medicare allows VA pharmacy use alongside Medicare, often at lower cost.
- VA drug coverage is creditable. Under tricare for life and medicare, a veteran can skip Part D without a late penalty.
- Spouses are covered differently. tricare for life and medicare rules for a spouse or survivor follow CHAMPVA, not the veteran’s own benefits.
- A VSO helps for free. Accredited service officers handle tricare for life and medicare questions at no charge.
Where to Get Free Help
An accredited Veterans Service Officer will review tricare for life and medicare with you at no charge, through your county veterans office or a service organization. For the Medicare half, your SHIP counselor is free as well.
Official Sources & Resources
- VA health benefits: https://www.va.gov/health-care/
- TRICARE For Life: https://tricare.mil/Plans/HealthPlans/TFL
- Medicare.gov: https://www.medicare.gov
- CMS.gov: https://www.cms.gov
- Find your SHIP counselor: https://www.medicare.gov/talk-to-someone
Checked against the official sources above in September 2026. Rules and dollar figures change; if a notice you received disagrees with this page, the notice wins — and please tell us. General information, not legal, financial or medical advice.