An official website of the United States government
A .mil website belongs to an official U.S. Department of Defense organization in the United States.
A lock (lock ) or https:// means you’ve safely connected to the .mil website. Share sensitive information only on official, secure websites.

News | June 25, 2026

How TRICARE For Life works with employer health coverage and Medicare

By TRICARE Communications

Turning 65 means it’s time for Medicare. If you’re eligible for Medicare and TRICARE For Life, and also have employer-sponsored coverage, there are some important decisions to make.

“TRICARE For Life works alongside Medicare coverage, but there are some rules beneficiaries should know,” said Anne Breslin, Program Manager, TRICARE For Life, TRICARE Health Plan, at the Defense Health Agency. “It’s crucial to understand your options, especially if you have employer-sponsored insurance.”

What to know about TFL and Medicare enrollment

Everyone has a seven-month Medicare Initial Enrollment Period that starts three or four months before the month they turn 65. Medicare lets people with employer-sponsored coverage from their current job delay their Part B enrollment. They can sign up later during a Special Enrollment Period without late enrollment premium penalty.

The Special Enrollment Period for Medicare Part B lasts as long as you or your spouse is working and covered by employer-sponsored insurance, or for the first eight months after employment or employer coverage ends, whichever is first. Whether you delay enrollment or not, it’s important to understand the Medicare enrollment periods. Sign up for Medicare benefits on time to avoid a break in coverage and late-enrollment penalties.

If you choose to delay signing up for Medicare Part B, you’ll use your employer-sponsored coverage. You won’t be eligible for TRICARE during that time. Sign up for Part B before you retire or lose employer-sponsored coverage. That way, your TFL coverage will start right after your employer plan ends.

If you have coverage through the Federal Employee Health Benefits Plan, you can suspend your coverage and use TFL. Suspending your FEHBP will let you enroll in an FEHBP later if you choose. Cancelling your FEHBP means that you won’t be able to re-enroll later. To suspend FEHBP coverage, fill out a suspension form from the Office of Personnel Management or call 888-767-6738.

Remember, once you’re eligible for Medicare Part A, you’ll need to sign up for Medicare Part B to be eligible for TRICARE. You're responsible for Medicare Part B premiums.

Understanding your options

If you’re turning 65 and have employer-sponsored health insurance, you can:
  1. Keep your employer-sponsored coverage, and enroll only in Medicare Part A. In this case, you won’t have TRICARE coverage. TFL takes effect on the first date that your Medicare Part A and Part B coverage are effective.
  2. Keep your employer-sponsored coverage and also enroll in Medicare Parts A and B. TFL is effective the first date that both your Medicare Parts A and B take effect. TRICARE is the last payer after your employer coverage and Medicare have paid their portion of the claim. 
  3. Enroll in Medicare Parts A and B only. TFL is effective the first date that both your Medicare Parts A and B take effect. Medicare will be the first payer and TRICARE pays after.

TFL is just for military retirees and their eligible family members who qualify for Medicare. Any TRICARE enrollments for family members who aren’t eligible for Medicare stay the same.

How coverage works together

TFL is Medicare “wraparound” coverage. This means that it pays your out-of-pocket costs for TRICARE covered services after Medicare pays their part of a claim. TFL coverage begins on the first day you have both Medicare Part A and Part B coverage.

TFL out-of-pocket costs

TYPE OF SERVICE MEDICARE PAYS TRICARE PAYS YOU PAY
Covered by TRICARE and Medicare Medicare-allowed amount Remaining amount Nothing
Covered by Medicare only Medicare-allowed amount Nothing Medicare deductible and cost-share
Covered by TRICARE only Nothing TRICARE-allowable amount TRICARE deductible and cost-share
Not covered by TRICARE or Medicare Nothing Nothing Billed charges (which may exceed the Medicare or TRICARE-allowable amount)


Employer-sponsored health plans may cover providers, services, or items that Medicare or TRICARE don’t. Compare your employer group health plan benefits and costs to your Medicare and TRICARE benefits and costs to find what’s best for you.

For larger employer-sponsored health plans, that health plan pays first, Medicare pays second, and TRICARE pays last. For plans with fewer than 20 employees, Medicare pays first, the employer plan second, and TRICARE pays last.
 

Employer-sponsored insurance type Order of payment
Greater than 20 employees 1. Employer plan
2. Medicare
3. TRICARE
Fewer than 20 employees 1. Medicare
2. Employer plan
3. TRICARE


You’ll need Medicare Part B coverage to get or keep TFL coverage, as described in the TRICARE For Life Handbook. If you turn down Medicare Part B when you’re first eligible, and you don’t qualify for a Special Enrollment Period, you can still sign up for Medicare Part B during its General Enrollment Period of Jan. 1 through March 31 each year. Medicare Part B takes effect the month after you sign up. If you sign up for Medicare Part B without a Special Enrollment Period, you may have a late enrollment premium penalty. The Part B late enrollment premium penalty is an added 10% for each 12-month period that you could sign up for Medicare Part B but didn’t.

Important: COBRA is a law that lets you keep your employer group health plan coverage for a limited time after your job ends. Your Medicare Part B 8-month Special Enrollment Period begins after you stop working or lose your health insurance. COBRA coverage doesn’t count. Sign up for Medicare Part B during that Special Enrollment Period to avoid penalties.

Communication is key

Insurance plans need to know about any other coverage you have so they can avoid payment problems. To help, you should:

If TRICARE pays first and then finds out that you had other health insurance, TRICARE will take back any payments made. TRICARE will only reprocess your claim after your other health insurance does.

Where to look for help

For more information, check out the TRICARE and Medicare Turning Age 65 Brochure and the TRICARE For Life Handbook. Once you’re eligible for Medicare, contact your TRICARE contractor for help:

Sixty-five is a major milestone. TRICARE is here to help you make informed decisions about your healthcare coverage options.

Would you like the latest TRICARE news sent to you by email? Visit TRICARE Subscriptions to get benefit updates, news, and more.

Service member examines the eye of another service member.

Keep an eye on your vision health with TRICARE

News
Jun. 23, 2026

About 11 million Americans over age 12 need vision correction, according to the CDC. Do you know if you’re one...
Read More
A person typing on a laptop with their left hand while holding a mug in their right hand.

Find a TRICARE provider near you

News
Jun. 18, 2026

The first step in getting healthcare is to know where to go. TRICARE has many resources to help you find the...
Read More
A person's legs in dark pants and socks in a kitchen, surrounded by cardboard boxes. "Kitchen" is written on one of the boxes.

Moving with TRICARE: A game plan for success

News
Jun. 16, 2026

When you move, keeping organized is key. Between the boxes and bubble wrap, take time to make sure your...
Read More
Woman holds yellow envelope package.

TRICARE offers home delivery for prescription drugs

News
Jun. 11, 2026

TRICARE has an easy way for prescription drugs to come right to your doorstep: TRICARE Pharmacy Home Delivery...
Read More
Three service members smile while walking together

Take charge of your health: men’s preventive ser...

News
Jun. 09, 2026

When’s the last time you went to the doctor for a check-up? Now’s a great time to check in on your health and...
Read More
Picture of a man standing behind a woman as they smile

Understanding TRICARE deductibles: What you need...

News
Jun. 04, 2026

Have you ever heard the word "deductible" and wondered what it means? You aren’t alone. Healthcare cost terms...
Read More
"CHECK IT OUT! www.tricare.mil/publications;" Screenshots of the TRICARE Plans Overview Fact Sheet

Get to know your TRICARE health plan with the TR...

News
Jun. 02, 2026

Learn about your TRICARE health plan today with a simple tool that makes it easy. The TRICARE Plans Overview...
Read More
A dentist demonstrates toothbrush technique on a dental model.

The important connection between diabetes and or...

News
May. 27, 2026

According to the Centers for Disease Control and Prevention, about 12 out of every 100 Americans have...
Read More

June 25, 2026

How TRICARE For Life works with employer health coverage and Medicare

Turning 65 means it’s time for Medicare. If you’re eligible for Medicare and TRICARE For Life, and also have employer-sponsored coverage, there are some important decisions to make.

June 23, 2026

Keep an eye on your vision health with TRICARE

About 11 million Americans over age 12 need vision correction, according to the CDC. Do you know if you’re one of them? Getting routine eye exams to monitor your eyesight can help detect and prevent eye diseases early.

June 18, 2026

Find a TRICARE provider near you

The first step in getting healthcare is to know where to go. TRICARE has many resources to help you find the right healthcare provider for you and your family. Depending on your plan, you’ll get care from a military hospital or clinic or a civilian provider.

June 16, 2026

Moving with TRICARE: A game plan for success

When you move, keeping organized is key. Between the boxes and bubble wrap, take time to make sure your TRICARE benefits are ready to come along. Here are a few steps you can follow on your journey from getting ready to arriving at your new location.

June 11, 2026

TRICARE offers home delivery for prescription drugs

TRICARE has an easy way for prescription drugs to come right to your doorstep: TRICARE Pharmacy Home Delivery. It's a convenient and simple way to get up to a 90-day supply of your prescriptions.

June 9, 2026

Take charge of your health: men’s preventive services covered by TRICARE

When’s the last time you went to the doctor for a check-up? Now’s a great time to check in on your health and learn about the men’s health and preventive services that TRICARE covers. TRICARE covers a range of screenings and services designed to keep you healthy at every stage of life.

June 4, 2026

Understanding TRICARE deductibles: What you need to know

Have you ever heard the word "deductible" and wondered what it means? You aren’t alone. Healthcare cost terms can be tricky, but we’re here to make them easy to understand. A deductible is a set amount of money you must pay out of pocket before TRICARE starts to pay for your care. Knowing your deductible is the first step in planning your family's healthcare budget.

June 2, 2026

Get to know your TRICARE health plan with the TRICARE Plans Overview Fact Sheet

Learn about your TRICARE health plan today with a simple tool that makes it easy. The TRICARE Plans Overview Fact Sheet is your go-to resource for understanding what you and your family members can expect when getting care with your health plan.

May 27, 2026

The important connection between diabetes and oral health

According to the Centers for Disease Control and Prevention, about 12 out of every 100 Americans have diabetes. However, many people underestimate how important their oral health is in managing their diabetes.

May 27, 2026

Snacking your way to a healthier mouth

You may be flossing and brushing regularly, but did you know the snacks you eat also play a significant role in the state of your dental health? Frequent snacking on certain foods can expose your teeth to harmful acids and sugars, leading to cavities and gum disease.