By WhiteOwl · July 2, 2026 · 7 min read
Yes. If you are a US citizen or green card holder, you must file a US tax return and report your worldwide income no matter where you live. The United States taxes based on citizenship, not residence — one of only two countries that does (the other is Eritrea). The good news: filing does not usually mean paying twice. Tools like the Foreign Earned Income Exclusion ($132,900 for tax year 2026), the Foreign Tax Credit, and tax treaties eliminate or sharply reduce US tax for most Americans abroad. This guide explains who must file, what you actually owe, and the deadlines that apply in 2026.
Why do I have to pay US taxes if I live abroad?
Because US tax law is built on citizenship-based taxation. Under the Internal Revenue Code, US citizens and resident aliens are taxed on worldwide income — salary, self-employment income, rental income, investments, pensions — regardless of where it is earned or where they live (see IRS guidance for US citizens and resident aliens abroad). Moving overseas does not end your obligations; only renouncing citizenship (or, for green card holders, formally abandoning the green card) does, and that can trigger its own exit-tax analysis.
Filing is required once your income exceeds the standard filing threshold. For tax year 2026, the standard deduction is $16,100 for single filers and $32,200 for married filing jointly (IRS 2026 inflation adjustments). Self-employed Americans abroad must file at just $400 of net self-employment income. Note that if you are filing your 2025 return during 2026, the 2025 figures apply (FEIE of $130,000, for example).
Do US citizens living abroad actually end up paying US taxes?
Most don't owe much, if anything — but they must file to claim the benefits that make that true. Three mechanisms do the heavy lifting:
Foreign Earned Income Exclusion (FEIE). If you pass the bona fide residence test or the physical presence test (330 full days abroad in a 12-month period), you can exclude up to $132,900 of foreign earned income in 2026 ($130,000 for 2025) using Form 2555. A foreign housing exclusion can shelter more (2026 base limitation: $39,870). Details: IRS Foreign Earned Income Exclusion.
Foreign Tax Credit (FTC). Form 1116 gives you a dollar-for-dollar credit for income taxes paid to a foreign country. If you live in a higher-tax country (UK, Canada, Germany, Australia), the FTC usually wipes out your US liability entirely and can even bank excess credits for future years.
Tax treaties. The US has income tax treaties with about 65 countries that resolve which country taxes pensions, social security, and other income categories, and prevent double taxation on the rest.
What these tools do not cover: US self-employment tax (Social Security and Medicare, roughly 15.3%) still applies to freelancers abroad unless a totalization agreement assigns you to the foreign country's system. Passive income — dividends, capital gains, rents — is not "earned income," so it falls to the FTC and treaties rather than the FEIE.
If you move out of the US, do you still pay taxes?
Federally, yes — the filing obligation follows your passport, as covered above. Two other layers matter when you move abroad:
State taxes. Some states make it hard to leave. California, Virginia, South Carolina, and New Mexico are known for continuing to assert residency unless you clearly sever ties (home, driver's license, voter registration, dependents in-state). Moving from a sticky state without a clean break can mean state returns for years. If you can, establish residency in a no-income-tax state before departing.
Information reporting. Paying US taxes while living abroad is only half the job — reporting is the other half. If your foreign financial accounts exceed $10,000 in aggregate at any point in the year, you must file an FBAR (FinCEN Form 114). Higher balances can also trigger FATCA Form 8938 (thresholds start at $200,000 year-end for single filers living abroad).
Deadlines for 2026: April 15, 2026 is the payment deadline; Americans abroad get an automatic filing extension to June 15, 2026, and can request October 15, 2026 with Form 4868. Interest runs on any unpaid balance from April 15. The FBAR is due April 15 with an automatic extension to October 15 — no request needed.
Do foreigners pay taxes in the US?
Yes, but under different rules. Non-US citizens without a green card are taxed as nonresident aliens unless they meet the substantial presence test. Nonresident aliens pay US tax only on US-source income: wages for work performed in the US, US rental income, and certain US investment income (often via a flat 30% withholding, reduced by treaty). They file Form 1040-NR, not Form 1040. A foreigner who spends enough days in the US to pass substantial presence becomes a resident alien — and is then taxed on worldwide income just like a citizen. This is why US citizens taxed on worldwide income and visiting foreigners can sit side by side with completely different tax outcomes.
FAQ
Do US citizens have to pay taxes when living abroad if they already pay foreign taxes?
They must file, but foreign taxes paid usually offset US tax via the Foreign Tax Credit. In higher-tax countries, most expats owe $0 to the IRS after credits.
What is the US worldwide income tax?
It's shorthand for the rule that US citizens and residents are taxed on all income globally — foreign salary, foreign rentals, foreign investments — not just US-source income.
Do American citizens living abroad have to file even if they owe nothing?
Yes. The FEIE and FTC must be claimed on a filed return. Skipping filing forfeits those benefits and keeps the statute of limitations open indefinitely.
If I live abroad and haven't filed US taxes in years, what should I do?
The IRS Streamlined Filing Compliance Procedures let non-willful late filers catch up with three years of returns and six years of FBARs, generally penalty-free.
Do I pay taxes while living abroad on my US retirement accounts?
Distributions from IRAs and 401(k)s remain US-taxable, and your country of residence may tax them too — treaties typically decide which country has primary taxing rights.
This article is general information, not personalized tax advice. Consult a qualified cross-border tax professional about your situation.
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