The snowbird
Winter abroad.
US life intact.
You're not moving. You're not roaming. You keep your US home, your US life, and your US address — and you spend 3–5 months each year somewhere warm. You come back when it suits you.
This is the most popular retirement travel pattern, and the most manageable to set up. There's one trap most snowbirds don't see until it's caused a problem — and one coverage gap that's easy to fill once you know it's there.
Updated · Published
This page is educational, not professional tax, legal, or insurance advice. Medicare rules, plan terms, and visa requirements change — verify current details with official sources before committing to a coverage decision or travel plan.
Four things to have right before your first season.
The snowbird setup is simpler than it sounds. Most of it you already have — you just need to check a few things before you leave:
- Medicare handled correctly — if you're on Medicare Advantage, there's a 6-month rule that can auto-disenroll you. Most snowbirds stay under the threshold, but it's worth confirming your plan's exact terms — and switching before the issue finds you.
- Short-term international health coverage — Medicare covers almost nothing outside the US. A 3–6 month international plan fills the gap for your abroad window. You don't need an annual IPMI plan; a shorter-term option sized to your trip is enough.
- Your US property on autopilot — bills on autopay, someone checking in on the house, mail handled, homeowner's insurance notified of extended absence. One afternoon of setup before you leave.
- Banks and financial accounts aware — flag your travel dates to avoid fraud holds. Consider a bank account that reimburses ATM fees abroad. Notify Social Security and Medicare of any new mailing address.
The rest of this page goes deeper on each piece — and covers where most snowbirds actually go.
The trap most snowbirds
don't see coming.
More than half of Medicare enrollees are on a Medicare Advantage plan. Most of them don't know there's a 6-month rule buried in the terms — and some snowbirds find out about it only after it triggers.
How the 6-month rule works.
Most Medicare Advantage plans require you to live in their service area to stay enrolled. If you're continuously outside that area for more than 6 months, the plan can automatically disenroll you. For most plans, the service area is the US — so spending November through May abroad (seven months) crosses the threshold, even though it feels like a normal winter trip.
When auto-disenrollment happens, you get a Special Enrollment Period — but on the plan's timeline, not yours. Depending on timing and your state, your Medigap options when you return may be limited or subject to medical underwriting.
Advantage may be fine — check your plan
If your trips are consistently 3–4 months and you're confident they'll stay there, your Advantage plan likely won't trigger the 6-month rule. The important step: read your specific plan's terms for the exact service area definition and absence threshold. Some plans use different language; don't assume.
Switch before it becomes an issue
Switch to Original Medicare (Parts A + B) plus Medigap Plan G during Annual Enrollment (October 15–December 7), the fall before your first extended trip. Do it on your schedule, while you still control the timing and your Medigap options aren't limited by medical underwriting.
Why the timing matters —
A short-term plan for
your abroad months.
Medicare covers almost nothing outside the US. Medigap Plan G includes a foreign emergency backstop — 80% up to $50,000 lifetime — but it's not a health plan. For your abroad months, you need real coverage.
Short-term international plan (3–6 months)
Annual IPMI plans are designed for people abroad most of the year. For 3–5 months abroad, a shorter-term international plan is the right-sized option — less expensive and not locked in for 12 months. Look for plans with GP and specialist coverage, direct billing at hospitals in your destination, and inpatient care included.
Travel insurance is not a substitute. It's designed for emergencies during short trips — not for routine care during an extended stay. A GP visit, a specialist referral, or a prescription renewal won't be covered.
You don't need annual IPMI
Annual International Private Medical Insurance is the right product for perpetual travelers spending 8–10 months abroad. For a snowbird returning home for more than half the year, it's usually overkill — you'd be paying 12 months of premium for 4 months of coverage need.
A shorter-term plan also gives you flexibility: if your next season changes (different country, different duration), you pick a different plan. No 12-month commitment.
Simple — as long as you
stay under 183 days.
At 3–5 months abroad, you're well under every foreign tax residency threshold. You stay a US tax resident and your return looks essentially the same as any year spent at home.
You file US taxes the same as always
Social Security, pension distributions, IRA withdrawals, and investment income are all taxed the same way they were before you started wintering abroad. No foreign income exclusion, no FBAR (unless you open foreign bank accounts above $10,000), no special forms. US citizenship-based taxation applies regardless of where you travel — but at 3–5 months abroad, the complexity doesn't change.
183-day line in each country
Most countries trigger tax residency at 183 days in a calendar year — you're nowhere near it at 3–5 months. The nuance: France uses a foyer test that can trigger regardless of day count if France appears to be your habitual home. If you're spending significant time in France (not just passing through), don't maintain a standing lease at the same address year after year.
If you own property abroad.
Buying a property in your snowbird country changes the picture. Some countries (France, Spain) treat foreign property ownership as a factor in establishing residency — particularly if you return to the same property each year. This is worth a conversation with an expat tax advisor before buying, not after.
Where US snowbirds
actually spend the winter.
Destination matters for how long you can stay, what insurance networks are available, and how much the season costs. These five destinations cover most of the snowbird footprint.
Mexico
180 daysThe most popular US snowbird destination by a wide margin. Up to 180 days on a tourist visa (FMM). Large US retiree communities in San Miguel de Allende, Puerto Vallarta, Mérida, and the Riviera Maya. Close proximity, direct flights from almost anywhere in the US, and a fraction of European costs.
Most popular destination
Portugal
90 days (Schengen)The Algarve and Silver Coast are popular winter destinations. As a tourist, you get 90 days within the Schengen Area — enough for 3 months but not 5. Note: the D7 visa requires 183+ days per year in Portugal; it's not for seasonal visitors.
Costa Rica
90 daysGrowing US retiree community, particularly in Guanacaste and the Central Valley. Strong private healthcare in San José. 90 days visa-free, extendable. Warmer climate than Mexico's highland options.
Greece
90 days (Schengen)Crete and the Aegean islands are popular spring and fall destinations. Same Schengen 90-day limit applies. Excellent private healthcare in Athens. The 7% flat tax regime requires full residency — not relevant for seasonal visitors.
Panama
180 daysBoquete and Panama City have established US retiree communities. Up to 180 days visa-free, similar to Mexico. USD is the currency — no exchange rate to manage. Pension income is exempt from Panamanian tax.
Schengen only matters if your season is over 90 days.
The Schengen 90/180 rule limits US citizens to 90 days in the Schengen Area in any rolling 180-day window. At 3–4 months in a single Schengen country, you're likely right at or under that limit — but worth confirming if you're combining multiple Schengen countries in one season. Mexico, Costa Rica, and Panama are entirely outside Schengen and have their own independent (and more generous) stays.
Getting your US life on autopilot
before you leave.
The snowbird advantage: you're not closing down your US life, just pausing it. The setup is mostly a one-afternoon task that repeats each year with minor updates.
Pre-season checklist
- Bills on autopay — utilities, mortgage, insurance premiums
- Homeowner's insurance notified of extended vacancy (some policies have clauses for unoccupied homes)
- Someone checking in on the property — a neighbor, a property manager, or a trusted contact with a key
- Mail forwarded or held — USPS forward to your abroad address, or hold at post office
- Banks notified of travel dates to prevent fraud holds on your cards
- International insurance in place before departure date
Simple banking for seasonal stays
A Schwab checking account reimburses all ATM fees worldwide — useful for withdrawing local currency at destination. Wise is useful if you're paying rent or larger bills in local currency. For most snowbirds, your existing US debit and credit cards work fine as long as you've notified your bank.
Keep your US checking account receiving Social Security, pension, and IRA distributions directly. There's no reason to route income through a foreign account for a seasonal stay.
Banking guide for retirees abroad →Keep your US phone number active.
Your bank's two-factor authentication texts go to your US number. If your carrier goes dark abroad, you lose access to your accounts. A low-cost US number plan ($5–8/month) keeps 2FA working for the entire season. Then add a local SIM for data and calls at your destination.
Common Questions
I'm only going for 4 months. Am I safe on Medicare Advantage?
Do I need international health insurance for just 3–4 months abroad?
Do I owe taxes to the countries I'm visiting?
What's the difference between a snowbird and a trial move from an insurance standpoint?
Should I rent out my US home while I'm abroad?
Five things to do before your first season.
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Check your Medicare plan's exact 6-month terms
Find your plan's Evidence of Coverage document and read the service area and disenrollment language. If your trips might push past 5 months, or if you want to stop managing the risk, switch during Annual Enrollment (October 15 – December 7).
Medicare guide for snowbirds → -
Get international coverage for your abroad months
Compare 3–6 month international plans. Look for GP and specialist coverage, direct billing in your destination country, and inpatient care. Do this before you book flights — some plans have waiting periods.
Insurance options for snowbirds → -
Notify banks and set up ATM-fee reimbursement
Flag your travel dates to prevent fraud holds. A Schwab checking account reimburses all ATM fees worldwide — useful if your destination charges for cash withdrawals.
Banking guide for retirees abroad → -
Set up your US property for an extended absence
Bills on autopay, homeowner's insurance notified, someone checking in on the property, mail forwarded or held. One afternoon of prep before each season.
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Keep your US phone number active
A low-cost US number plan ($5–8/month) keeps your bank's 2FA working for the full season. Get a local SIM for data and calls at your destination.
How to keep your US number working abroad →
The Medicare Advantage trap, in full.
The 6-month rule, what auto-disenrollment actually costs, why Medigap timing matters, and the step-by-step coverage stack for a snowbird. Everything you need to make this decision before you go.
Medicare guide for snowbirds