Social Security Tax Abroad: When US Taxes Still Apply to Your Pay
In this guide
Quick answer: Social Security tax abroad still applies to wages you earn outside the US if you work for an American employer, work on an American vessel or aircraft in certain cases, work in a country whose totalization agreement says US coverage applies, or work for a foreign affiliate under a voluntary agreement. A totalization agreement generally means you pay into only one country’s system.
Moving abroad does not automatically stop US payroll taxes. Whether Social Security and Medicare keep coming out of your pay depends on who employs you and whether a bilateral agreement exists. This guide follows the IRS page on the Social Security tax consequences of working abroad. It is a different question from income tax, which our expat tax guide covers, and from the FICA rules for students, covered in FICA tax for international students.
When do US Social Security and Medicare taxes apply outside the US?
In general, they continue to apply to wages for services you perform as an employee outside the US if one of the following is true:
| Situation | What the IRS says |
|---|---|
| You work for an American employer | This includes the US government, a US-resident individual, a partnership where at least two-thirds of partners are US residents, a trust whose trustees are all US residents, and a corporation organised under US law |
| American vessel or aircraft | Taxes apply if you signed your contract within the US, or the vessel or aircraft touches a US port while you are employed on it |
| Totalization agreement country | You work in a country with a bilateral agreement, and the agreement says your foreign employment is subject to US Social Security and Medicare taxes |
| Foreign affiliate of an American employer | Under a voluntary agreement between the American employer and the US Treasury. A foreign affiliate is a foreign entity in which the employer holds at least a 10% interest |
American employers use Form 2032 to extend Social Security coverage to US citizens and residents working abroad for foreign affiliates. The IRS adds that coverage under an agreement in effect on or after 15 June 1989 cannot be terminated.
What are totalization agreements?
Under a totalization agreement, dual coverage and dual contributions for the same work are eliminated. The agreements generally ensure that you pay Social Security taxes to only one country. The IRS page does not list the countries, so check the Social Security Administration or the IRS totalization page for your destination.
Is anything exempt?
Social Security tax does not apply to the value of meals and lodging that are excluded from your income because they were provided for the convenience of your employer.
What about self-employed people?
The IRS page links to a separate page on self-employment tax for businesses abroad. We have not covered it here.
How does this connect to other expat rules?
- The foreign earned income exclusion reduces income tax but does not remove Social Security tax. See the foreign earned income exclusion.
- If you receive a foreign tax credit for payroll taxes paid to another country, check the rules in the foreign tax credit guide.
Common mistakes
- Assuming an American employer’s taxes stop when you relocate.
- Paying into two systems because no one checked for a totalization agreement.
- Confusing income tax relief with payroll tax relief.
Frequently asked questions
I work for a foreign company abroad. Do I pay US Social Security tax?
Generally not, unless one of the listed situations applies, such as a foreign affiliate under a voluntary agreement or a totalization agreement that assigns you to the US system.
Does the foreign earned income exclusion remove Social Security tax?
The IRS page does not say so, and the exclusion is an income tax rule. Check your situation with the SSA or a tax professional.
How do I find out if my country has an agreement?
The IRS page points to its totalization agreements page. Check it for the current list.
Key takeaways
- US Social Security and Medicare taxes can follow you abroad, mainly when you work for an American employer.
- Totalization agreements generally stop you paying into two countries.
- Meals and lodging provided for your employer’s convenience are not subject to the tax.
Related guides
- Expat tax for US citizens abroad
- Foreign earned income exclusion
- FICA tax for international students
- Expat tax extension deadlines
- Your first 90 days in a new country
This page is general information, not legal or tax advice. Last updated: October 2026.
Sources
Internal Revenue Service: Social Security tax consequences of working abroad.