Social Security Abroad: 5 Costly Mistakes American Expats Need to Avoid

Moving abroad can make your retirement cheaper, simpler and, in many respects, more enjoyable.

But if you’re an American receiving Social Security, or planning to claim it after moving overseas, there are some rules you really need to understand.

The problem is that decisions which seem perfectly sensible can have long-term financial consequences. Claim too early and your lower benefit can follow you for life. Get your tax status wrong and a sizeable chunk of your payment could be withheld. Ignore a letter from the Social Security Administration and your payments can be suspended.

And these aren’t obscure technicalities. They are the sort of things you want to know before the problem appears.

The first mistake: claiming Social Security too early

For anyone born in 1960 or later, full retirement age is 67. You can start claiming Social Security at 62, but doing so means accepting a permanent reduction in your benefit.

That reduction can be around 30% compared with claiming at full retirement age. Waiting longer can increase the benefit further, with delayed retirement credits available up to age 70.

The important word here is permanent.

If your benefit is $2,000 a month at full retirement age, claiming early can mean accepting substantially less income for the rest of your life. The difference isn’t simply a few dollars each month. Over twenty or thirty years of retirement, it can become a very large sum.

This is particularly easy to get wrong when you’ve just moved abroad. You’ve got relocation costs, a new home, deposits, insurance and all the other expenses that come with establishing yourself somewhere new. Having Social Security arrive immediately can feel like the sensible thing to do.

But don’t make the decision simply because you want the money now.

Look at your health, other income, savings and likely retirement horizon. Run the numbers before you claim. A decision made at 62 can affect every payment you receive afterwards.

The second mistake: not understanding the tax withholding rules

This is one of the more surprising issues for Americans living overseas.

If the IRS classifies you as a nonresident alien for tax purposes, Social Security can be subject to a 30% withholding rate on 85% of the benefit. That works out to an effective withholding of 25.5% of the total payment.

On a $2,000 monthly benefit, that’s $510 potentially disappearing before the money reaches you.

There is an important qualification here. US citizens generally remain US residents for US tax purposes even when they live abroad, so this particular withholding rule does not apply to most American citizens simply because they’ve moved overseas.

The situation can be different for some Green Card holders, people who have renounced US citizenship, and people affected by particular tax treaty provisions.

That’s why you need to establish your tax position rather than assume that “living abroad” automatically means the same thing for everyone.

If you’re moving overseas, find out how your status affects your Social Security before the first payment arrives. Discovering a reduced payment two years into retirement is a bloody poor way to learn about the rules.

The third mistake: ignoring the Social Security questionnaire

There is another problem that is much less dramatic but remarkably easy to avoid.

The Social Security Administration periodically contacts beneficiaries living abroad to confirm that they remain eligible and to check whether their circumstances have changed.

If you receive a questionnaire and fail to respond, your payments can be suspended until the matter is resolved.

That can be particularly awkward when you’re thousands of miles from the United States. International post, different time zones and difficulty contacting the right department can turn a simple administrative job into a prolonged nuisance.

The answer is straightforward.

Keep your address up to date with the SSA. If you move from one overseas address to another, tell them. And if a questionnaire arrives, deal with it promptly.

Don’t put it in the drawer with all the other paperwork you intend to sort out “when you’ve got a minute”.

That minute can become a very expensive one.

The Other Social Security Mistakes American Expats Need to Know

There are two more mistakes worth understanding, particularly if you’re already living abroad or have worked outside the United States.

The fourth mistake: assuming Medicare is useless abroad

This one catches a lot of American expats.

Standard Medicare generally does not cover healthcare you receive outside the United States. So if you’re living in Thailand, the Philippines, Portugal or somewhere else overseas, it is perfectly reasonable to wonder why you’re still paying for Medicare Part B.

But cancelling Part B can create a problem if you later return to the United States.

If you drop your coverage and subsequently re-enrol, you may face a permanent late-enrolment penalty. The penalty is generally 10% of the Part B premium for each full 12-month period you were eligible but didn’t have Part B.

So the question isn’t simply:

“Does Medicare cover me where I live now?”

It is also:

“What happens if I return to America when I’m older and need it?”

If there’s a reasonable chance you’ll eventually return to the US, don’t cancel Part B without understanding the consequences first.

You may decide that paying the premium while abroad makes no sense. That’s your decision. But make it with the full picture in front of you.

The fifth mistake: overlooking the Social Security Fairness Act

There is also a relatively recent change that some American expats may have missed.

The Social Security Fairness Act became law in January 2025. It repealed the Windfall Elimination Provision and Government Pension Offset, rules which had reduced certain Social Security benefits for people receiving pensions from employment that wasn’t covered by US Social Security.

That can be relevant to some Americans with foreign pensions, particularly those who have worked for overseas governments, public-sector organisations or other employers where they paid into a foreign pension system instead of Social Security.

The repeal applies retroactively to benefits from January 2024.

So if you previously had your Social Security reduced because of WEP or GPO, don’t assume the old calculation still applies. Check with the SSA to see whether the change affects you and whether you’re entitled to additional payments.

This is one of those occasions where five minutes of checking could be worth a considerable amount of money.

Where you live can affect your payments

There’s another issue to check before choosing your retirement destination.

Social Security payments cannot simply be sent everywhere without restriction. Certain countries have payment restrictions, and the rules can be particularly important if you’re considering somewhere outside the usual expat retirement destinations.

The SSA has a Payments Abroad Screening Tool specifically for checking whether benefits can be paid in the country you’re considering.

Use it before you move.

Not after you’ve signed the lease, shipped your belongings and discovered that your assumptions were wrong.

Don’t overlook Totalization Agreements

There is also a potentially useful arrangement between the United States and certain other countries.

The US has Social Security Totalization Agreements with more than 30 countries. These agreements are designed, among other things, to coordinate social security coverage and prevent workers from being forced to pay into both systems on the same earnings in situations covered by the agreement.

The UK, Australia, Canada, Germany and Japan are among the countries covered.

The Philippines and Thailand are not currently covered by a US Totalization Agreement.

That matters particularly if you’re still working or self-employed while living abroad. Your US tax and Social Security obligations can be very different depending on where you live and how you earn your money.

This is an area where guessing is a bad strategy.

If you’re self-employed overseas, get proper US expat tax advice before assuming that moving abroad means you’ve escaped US Social Security obligations.

The naked truth

Social Security is one of the most valuable assets many Americans take into retirement.

Moving overseas doesn’t make the rules disappear.

It can actually make them more complicated.

The biggest mistake is assuming that because you’ve successfully received your Social Security for years, there’s nothing else you need to think about.

Your claiming age matters. Your tax status matters. Your address matters. Medicare matters. The country you live in matters.

And if you’ve worked overseas or receive a foreign pension, changes in the law may matter too.

The sensible approach is simple.

Before you make an irreversible decision, understand what you’re actually giving up or gaining.

Because once you’re sitting on a beach in Southeast Asia, discovering that you could have made a better decision three years earlier isn’t going to make that decision any cheaper.