Last verified: October 2026. Premiums, credits, and thresholds change annually — confirm current figures with the SSA, Medicare.gov, and a licensed cross-border adviser before acting.
There’s a clean split that catches almost every American retiring to Portugal off guard: your Social Security follows you. Your Medicare does not. One keeps paying into your account every month regardless of where you live. The other becomes almost entirely useless the moment you leave US soil.
Here’s how each actually works, and what it costs to get the healthcare Medicare stops providing.
Social Security: it follows you
Portugal is one of the ~170 countries where the SSA pays benefits without restriction. There’s a totalization agreement with Portugal in force since 1989, and payments continue uninterrupted.
What’s payable in Portugal:
• Retirement benefits
• Disability benefits
• Survivor benefits
What isn’t: Supplemental Security Income (SSI) is means-tested rather than earned, and generally stops entirely once you live outside the US. If SSI is part of your current income, this is a decision to take advice on, not an administrative step.
Eligibility basics: most people born in 1929 or later need 40 Social Security credits. In 2026, you earn 1 credit per $1,890 of covered earnings, up to 4 credits per year at $7,560.
Getting paid: benefits are paid in USD. The SSA’s International Direct Deposit program can send payments straight to a Portuguese bank account.
The restricted-country list (Cuba, North Korea, and several former Soviet states) doesn’t include Portugal — but if you hold dual citizenship or plan to move on later, the SSA’s Payments Abroad Screening Tool is worth checking first.
What totalization does and doesn’t do
The US-Portugal agreement solves one specific problem: double social security taxation. Without it, an American employed in Portugal could owe contributions to both systems simultaneously — a combined payroll rate above 40%.
Three things it does not do:
1. It doesn’t increase a benefit you already qualify for. Combining periods is a route to qualifying, not to a bigger cheque. If you already have 40 US credits, your Portuguese periods can’t be counted on top.
2. It doesn’t create healthcare access. Coverage assignment isn’t the same as SNS registration.
3. It doesn’t extend Medicare. Nothing does.
Medicare: it stops at the border
This is the part that costs people real money when they get it wrong.
Medicare provides essentially zero coverage in Portugal. Parts A, B, C and D do not pay for care received abroad. The narrow Part B foreign-care exceptions all require US residency or proximity to a US border — none apply to someone living in Portugal.
The Part A / Part B decision
Keep Part A. It’s premium-free for most people (you already paid for it via payroll taxes), there’s no penalty for keeping it, and it’s a safety net whenever you visit the US.
Part B is the real decision. The standard premium is $202.90 per month in 2026, with an annual deductible of $283 — confirmed by CMS. Higher earners pay more under IRMAA. It buys you nothing while you live in Portugal.
But dropping it carries a permanent cost: the late enrollment penalty is 10% for every 12-month period you could have enrolled but didn’t, and it’s permanent. Drop Part B for six years and re-enrol, and you pay 60% above the standard premium for life.
