Turning 65 With Tricare? Here's the Medicare Decision to Make

Tricare for Life feels like it should be enough on its own. It has covered you for years, it follows you into retirement, and the paperwork has always been simple. Turning 65 changes that. Tricare for Life is built to pay after Medicare, not instead of it, and if you don't enroll in Medicare Part B on time, your Tricare coverage stops the first day of the month you turn 65.

This walks through the enrollment window, what actually happens if you miss it, and the one call that clears up the part most military retirees get wrong: whether Tricare buys you any extra time the way an employer health plan would.

Confirm Your Enrollment Window

Medicare's Initial Enrollment Period runs seven months: the three months before your 65th birthday month, your birthday month, and the three months after. If Social Security is already paying you, enrollment in Medicare Part A and Part B is automatic and your card should arrive on its own. If you haven't filed for Social Security yet, nothing happens automatically. You have to apply.

Waiting to see what happens is the most common way people lose track of this window. Tricare doesn't send its own separate reminder for Medicare enrollment, so the date lives on your calendar, not in your mailbox.

Know What Happens If You Skip Part B

Tricare for Life requires both Medicare Part A and Part B to work the way it's designed to. Without Part B, your Tricare for Life coverage doesn't just get worse, it stops on the first day of the month you turn 65. And skipping Part B carries its own separate cost: a 10% premium penalty for every full 12-month period you could have signed up and didn't. That penalty is added to your Part B premium for as long as you have Part B, which for most people is the rest of their life.

If you already missed the window, you're not out of options, but the path back takes longer than most people expect.

Avoid late enrollment penalties - Medicare.gov, Retired Service Members and Their Family Members - Tricare.mil. If you're already past the window, Missed Medicare Part B Enrollment: What Retirees Can Do Next covers the process in more detail.

Ask About the Special Enrollment Period, But Don't Assume You Qualify

This is the part that trips up the most military retirees. If you're still working and covered by a current employer's group health plan, Medicare gives you a Special Enrollment Period, meaning you can delay Part B past 65 without a penalty. Tricare for Life doesn't work the same way. Because it isn't coverage tied to a job you're actively working, it generally doesn't qualify you for that Special Enrollment Period the way an employer plan would.

In plain terms: having Tricare alone is not the same as having a reason to wait. If you're retired from military service and not separately working a civilian job with its own group health plan, plan on enrolling in Part B during your regular Initial Enrollment Period.

Once Part B is settled, the rest of your VA and Tricare paperwork is easier to keep straight. Veterans Benefits Checklist walks through organizing the records you'll want on hand for both systems.