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Before you leave

Medicare when you move abroad: keep Part B or drop the $202.90/month you can't use?

By Jin · A Japanese expat who spent 4 years in the US · August 4, 2026 · 9 min read

The short version. Original Medicare (Parts A and B) pays for essentially nothing outside the United States, so once you live abroad full-time, the $202.90/month Part B premium in 2026 buys you almost nothing. Dropping it saves that money — but re-enrolling later carries a permanent 10% penalty for every 12 months you went without it. The whole decision comes down to one question: how likely are you to move back to the US and need care there? Keep your free Part A no matter what, and if you’re on a Medicare Advantage plan, handle it before you leave to avoid an automatic-disenrollment mess.

I’m not American, and Medicare isn’t mine to navigate — I’m Japanese and spent four years working in the US. But this is one of the most-asked questions from the American readers I write for, so I dug through the primary sources the same way I dug through the tax and banking rules for my own move. What follows is my research, not advice. Confirm every figure and rule on medicare.gov and with someone licensed before you act — the enrollment-window details in particular are easy to get wrong.

What Medicare actually covers once you leave the US

Almost nothing. This is the fact everything else hangs on.

Original Medicare — Part A (hospital) and Part B (doctors, outpatient) — covers care inside the 50 states, DC, Puerto Rico, the US Virgin Islands, Guam, the Northern Mariana Islands, and American Samoa. Live full-time in Japan, France, or anywhere else, and it pays for your care there essentially never.

There are three narrow statutory exceptions (a foreign hospital closer to you than any US hospital while you’re physically in the US, an emergency crossing Canada between Alaska and the mainland, or a foreign hospital being the closest facility to your US home). None of them apply to someone who has actually moved abroad. Part D prescription coverage is even simpler: it pays zero for drugs bought outside the US — even when the identical medicine is far cheaper at a Japanese pharmacy.

So if you’re paying $202.90 a month for Part B while living in Tokyo, you are paying roughly $2,435 a year for coverage you cannot use.

The premium, and what it just became

Item20252026
Standard Part B premium$185.00/mo$202.90/mo
Year-over-year change+$17.90 (+9.7%)
Part A (with 40+ quarters worked)Premium-freePremium-free
Part D coverage abroad$0 of value$0 of value

Higher earners pay IRMAA surcharges on top of the $202.90 base; those brackets change yearly, so check the current CMS figures if your income is high. The point stands regardless: for a full-time expat, Part B is a recurring bill against a benefit of near-zero.

The catch that makes this a real decision: the penalty

If dropping Part B were free to reverse, everyone abroad would drop it. It isn’t.

Re-enroll after a gap and Medicare adds a 10% surcharge for every full 12-month period you could have had Part B but didn’t — and that surcharge is permanent. It’s recalculated against whatever the standard premium is each year, so it grows in dollar terms as premiums rise, and it follows you for life whether you’re on Original Medicare or Medicare Advantage.

Here’s what that looks like at the 2026 rate:

Years without Part BPenaltyExtra per monthExtra per yearDuration
2 years20%~$41~$487For life
5 years50%~$101~$1,217For life

Five years abroad, dropped Part B, then you move home at 70 and re-enroll: you’re looking at roughly $1,217 a year in penalty, every year, until you die — on top of the base premium. That’s the number that should drive the decision.

The exception most people miss: the return-from-abroad SEP

The penalty is not automatic for everyone who drops Part B abroad. There are penalty-free Special Enrollment Periods (SEPs):

  • Returning after living abroad. When you move back to the US after living outside it, there’s a specific SEP that lets you enroll in Part B without the late penalty. According to SSA, the enrollment window ends 3 months after the month you return to the US — so act quickly. Do not rely on this figure without confirming it directly with SSA (ssa.gov/help/iClaim_medSEP.html) or on medicare.gov, because missing the window drops you into the penalty.
  • Working abroad with qualifying coverage. If you (or a spouse) work for a US employer, or a foreign employer with a qualifying group health plan of 20+ employees, you generally get the standard 8-month penalty-free SEP after that employment/coverage ends.
  • International volunteers. Volunteering abroad for 12+ months with a US tax-exempt nonprofit, while holding qualifying coverage, can give a 6-month penalty-free SEP.

If none of these fit, and you miss your initial window, you’re stuck with the General Enrollment Period (Jan 1–Mar 31, with coverage starting the month after you enroll — e.g., enrolling in January means coverage begins February, under the updated rules in effect since 2023) — and the penalty applies.

The decision: keep Part B or drop it?

Frame it around the one question that matters — how likely are you to move back to the US and need American healthcare?

Your situationMy read of the research
You’re confident you’re not returning (settling in Japan permanently, taking citizenship route, no US ties to return to)Dropping Part B saves ~$2,435/year for coverage you’ll never use. The penalty only bites if you re-enroll — and you won’t.
You might return, timing unknownThis is the genuine coin-flip. Weigh $2,435/year saved now against a permanent penalty later ($1,217/year at 5 years). The longer you stay away, the worse re-enrollment gets.
You expect to return, or want US care as a fallbackKeeping Part B is the cautious play. You “waste” the premium while abroad but preserve clean, penalty-free coverage the day you land back home.
You qualify for a penalty-free SEP (working abroad, volunteering, or the return SEP)The penalty math largely dissolves — dropping becomes far more attractive because you can re-enroll clean. Verify your SEP eligibility in writing first.

Whatever you decide about Part B, keep premium-free Part A. Dropping it is a trap: to surrender it you’d have to repay all Social Security retirement benefits you’ve received plus everything Medicare has paid on your behalf. There is no scenario where giving up free Part A helps a US expat. It costs nothing to hold, so hold it.

The Medicare Advantage auto-disenrollment trap

If you’re on a Medicare Advantage (Part C) or standalone Part D plan, don’t just get on the plane. These plans must disenroll you when you move outside the plan’s service area — and living abroad can trigger that automatically after an extended absence (the exact absence threshold isn’t clearly documented publicly; confirm the current CMS rules with your plan before you leave). Get involuntarily terminated and you’re bounced back to Original Medicare, often with a narrow window to sort out coverage — one that’s easy to miss.

The clean move: voluntarily disenroll from any Advantage or Part D plan before you leave, on your own timeline, rather than letting the plan cut you off on its schedule. It turns a mess into a checkbox.

If you’ll be traveling rather than settling — flying back and forth rather than living abroad full-time — some Medigap plans (C, D, F, G, M, N) include a foreign-travel emergency benefit: 80% of eligible emergency charges in the first 60 days of a trip, after a $250 deductible, up to a $50,000 lifetime maximum. That’s a traveler benefit, not a resident one. It won’t cover you living abroad, but it’s worth knowing before you cancel supplemental coverage.

What replaces it, and the bigger money picture

If you drop US coverage, you’ll want local or international health insurance. International expat plans typically run $150–$800/month depending on age and scope (as of my research — shop current quotes before deciding) — sometimes cheaper than Part B, sometimes not, but at least it’s coverage you can actually use where you live. In Japan, enrolling in the national health system is generally part of establishing residency anyway.

Medicare is one piece of a much larger financial untangling. Your Social Security payments continue in most countries (Cuba, North Korea, and several Central Asian nations are the main exceptions), and the year you leave brings its own tax complications worth planning for — I walk through those in the first tax year after leaving the US. If you’re near retirement, how you handle Medicare sits right next to what happens to your 401(k) and IRA after moving to Japan — treat them as one decision, not three.

FAQ

Does Medicare Part B cover me if I live in Japan or Europe full-time?

No. Original Medicare covers care inside the US and its territories only. Living abroad full-time, Part B pays for essentially none of your care — which is exactly why so many expats question whether the ~$202.90/month premium is worth keeping. Confirm the current rules on medicare.gov.

If I drop Part B and move back to the US, how bad is the penalty?

You’d typically pay a permanent 10% surcharge for every full year you went without it — about $101/month (~$1,217/year) after five years, at the 2026 rate, for the rest of your life. But a penalty-free Special Enrollment Period may apply when you return from living abroad, so verify your eligibility with SSA before assuming you’ll be penalized.

Should I cancel my Medicare Advantage plan before I leave?

Generally yes — disenroll voluntarily on your own timeline. Advantage plans automatically disenroll members who move out of the service area, and getting cut off involuntarily while abroad can leave you scrambling to re-establish Original Medicare. Handling it before departure keeps the transition clean. Confirm the current disenrollment rules with your plan and CMS.