Glossary
Moving Between States
How a permanent move affects Medicare, Medicare Advantage, Part D, and TRICARE For Life coverage.
Also known as: relocation, permanent move, change of address Medicare
Quick answer
A permanent move triggers a Special Enrollment Period (SEP) of up to 2 months to change or join a Medicare Advantage or Part D plan, because most of those plans are tied to a service area.
Why it matters
If you move and don't act within the SEP, you may be stuck in a plan that doesn't serve your new ZIP code — or worse, fall out of plan coverage entirely.
Why this matters at age 65
Retirees who relocate after age 65 (often to be near family or a lower-cost state) must update DEERS, SSA, and any MA/PDP enrollment.
When you'll encounter it
Permanent address change to a new state, or to a new region within a state.
Impact on Medicare
Original Medicare works nationwide — no plan change required, but update SSA with your address.
Impact on TRICARE For Life
TFL coverage is unaffected by interstate moves as long as DEERS reflects the new address.
Impact on Medicare Advantage
Triggers an SEP starting the month before your move and lasting 2 months after. Use it to enroll in a plan that serves your new ZIP.
VA Healthcare considerations
You'll likely need to re-establish care at a new VA medical center; transfer your primary care assignment through the VA.
Common misconceptions
- "My Medicare Advantage plan goes with me anywhere in the U.S." — Most MA plans are tied to a service area; moving out of it ends or restricts your enrollment.
Common mistakes to avoid
- Missing the 2-month SEP and ending up locked into a non-serving plan.
- Forgetting to update DEERS and SSA addresses.
What should I do?
- 1Update your address with SSA, Medicare, DEERS (milConnect), and any MA/PDP plan as soon as you move.
- 2If you have an MA plan, use the move SEP within 2 months.
- 3Transfer VA primary care to a facility near your new home.
Continue learning
— suggested by the knowledge graph- Frequently asked questions about Medicare and TRICARE For LifeA quick-reference summary of the questions retired service members and spouses ask most often — with citations to the official source.
- Common mistakes retired military make at 65 — and how to avoid themThe most expensive errors retired service members and spouses make during the Medicare and TFL transition, and the simple fixes for each.
- Enrolling in Medicare: timing, methods, and the military-specific rulesWhen and how to sign up for Medicare Parts A and B — and the timing that protects your TRICARE For Life activation.
- Avoiding the Medicare late-enrollment penaltyThe Part B late penalty is permanent — and TRICARE does not waive it. Here's how to make sure you never owe it.
- COBRA After 65COBRA is not creditable coverage for Part B — using it past 65 instead of enrolling in Medicare causes lifetime late penalties.
- Employer Coverage After 65Active employer group health coverage at age 65 or later allows most retirees to delay Part B without penalty.
- AEP & OEP (Election Periods)AEP (Oct 15 – Dec 7) is when you can join, switch, or drop MA plans. OEP (Jan 1 – Mar 31) lets you change MA plans once.
- Annual Election Period (AEP)October 15 – December 7 each year — the main window to join, switch, or drop a Medicare Advantage or Part D plan, with coverage starting January 1.
- Beneficiary CategoryHow DEERS classifies you (active duty, retiree, family member, survivor, etc.) — determines which TRICARE plans and cost shares apply.
- Continued Health Care Benefit Program (CHCBP)A 18- to 36-month temporary TRICARE-like coverage option for those who lose TRICARE eligibility — functionally the military version of COBRA.
- Creditable CoverageNon-Medicare coverage that CMS deems at least as good as a standard Medicare Part D plan — TRICARE Pharmacy qualifies, so TFL beneficiaries don't need Part D.
- Creditable Drug CoveragePrescription drug coverage that CMS certifies is at least as good as standard Medicare Part D — including TRICARE Pharmacy and VA Pharmacy.
- Does TRICARE For Life work overseas?Yes. Overseas, TFL acts as your primary payer because Medicare generally doesn't pay outside the U.S. You'll usually pay the provider up front and file a paper claim with TFL overseas.
- What are the biggest mistakes retired military make at 65?Declining Part B, missing the IEP, ignoring DEERS, enrolling in Part D unnecessarily, and assuming MTF access continues. Each can cost thousands or end TFL.
- Do I need Medicare Part A if I have TRICARE?Yes. TFL requires Part A and Part B. Part A is typically premium-free if you or your spouse worked 40+ quarters paying Medicare taxes.
- I'm turning 65. What should I do first?About 3 months before your 65th birthday, sign up for Medicare Parts A and B at SSA.gov. TRICARE For Life activates automatically once both are effective and DEERS is current.
- If I move overseas, can I drop Part B since Medicare doesn't pay there?Don't. Dropping Part B ends TFL the same day. Re-enrolling later triggers a permanent late penalty plus a coverage gap.
Related glossary terms
Related Official Resources
Continue learning straight from the source. Every link below goes to an official government or DoD resource.
Last reviewed January 2026 against the 2026 Medicare & You and TRICARE For Life handbooks.