U.S. citizens and green-card holders owe self-employment tax — 12.4% Social Security + 2.9% Medicare = 15.3% — on worldwide self-employment income, no matter where they live. The Foreign Earned Income Exclusion doesn't touch it. For most digital nomads and expat freelancers, the only legal exemption runs through a totalization agreement.
Employees under an agreement are usually assigned by who sent them and for how long. Self-employed people get a simpler rule in most U.S. agreements: you're covered where you reside. Genuinely reside in an agreement country and your social security home is that country's system — you contribute there, and U.S. self-employment tax doesn't apply to the same earnings.
Two consequences cut in opposite directions:
The relief: no 15.3% U.S. tax on top of foreign contributions — often the single biggest tax saving available to an expat freelancer.
The cost: those years add nothing to your U.S. credit record. If you're a few credits short of the 40 needed for U.S. retirement benefits, going exempt can freeze you below the line — though totalization may still combine your credits at claim time if you have at least 6 U.S. quarters.
1. Get proof of foreign coverage. Request a certificate of coverage from the country where you reside and contribute.
2. Flag it on your U.S. return. Follow the current IRS instructions for exempt self-employment income under a totalization agreement instead of computing Schedule SE tax as normal.
3. Keep contributing somewhere. Paying into neither system is not a loophole — it's an audit finding plus an empty retirement. The agreement assigns you to one system; make sure you're actually enrolled in it.
Living in a country without a U.S. agreement — India, Singapore, Thailand, the UAE, most of Latin America — means the 15.3% applies in full, alongside whatever the local system demands. The main planning levers left are entity structure and where you establish residence, both of which deserve professional advice.
Want to see your scenario? Run the free calculator — pick your country and "Self-employed."
No — this is the most expensive misunderstanding in expat self-employment. The FEIE can exclude foreign earned income from income tax, but self-employment tax (15.3%) is computed on your net self-employment earnings regardless of the exclusion.
Under most U.S. agreements, self-employed people are covered by the country where they reside. If you genuinely live in Germany, Spain, Korea, etc., you generally contribute to that country's system and are exempt from U.S. self-employment tax — with the foreign certificate of coverage (or required statement) as proof when you file.
Don't fill in Schedule SE as normal. Follow the current IRS instructions for agreement-exempt self-employment income: obtain proof of foreign coverage, and attach the required statement/certificate reference to your return. Keep the foreign certificate permanently.
Then U.S. self-employment tax applies in full wherever you live, and the local system may also claim contributions under its own rules. There is no mechanism to combine or exempt — see our guide to no-agreement countries.