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US Expat Tax Hub 2026: Americans Living Abroad Filing Guide

Daniel · CountryTaxCalc Updated June 2026
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KEY INSIGHT
US citizens and green card holders must file US federal tax returns regardless of where they live — the US is one of only two countries (with Eritrea) that taxes citizens on worldwide income. The Foreign Earned Income Exclusion (FEIE) excludes up to $126,500 (2024) of foreign earned income. FBAR is due June 15 for expats. Use the guides below for your specific situation.
At a glance

Key Facts

Citizenship-Based Taxation: The US Is the Exception
The US taxes its citizens and permanent residents on worldwide income regardless of residency — a system called Citizenship-Based Taxation (CBT). This is shared only with Eritrea among all countries. Every other country uses Residence-Based Taxation (RBT), taxing only residents. This means an American living in Germany for 20 years owes annual US tax returns, FBAR reporting, and potentially US tax on income already taxed by Germany. The Foreign Tax Credit and tax treaties mitigate but do not eliminate this obligation.
Foreign Earned Income Exclusion (FEIE)
The FEIE allows qualifying US citizens and resident aliens living and working abroad to exclude up to $126,500 (2024 amount, indexed for inflation — approximately $130,000 in 2025) of foreign earned income from US federal income tax. To qualify, you must meet either the Physical Presence Test (330 full days outside the US in any 12-month period) or the Bona Fide Residence Test (established as a genuine resident of a foreign country). The FEIE applies to earned income only — investment income, pension income, and passive income are not excluded.
FBAR: Foreign Bank Account Reporting
US persons with a financial interest in or signature authority over foreign financial accounts must file FinCEN Report 114 (FBAR) if the aggregate value of those accounts exceeds $10,000 at any point during the calendar year. FBAR is filed electronically with FinCEN (not the IRS) by April 15, with an automatic extension to October 15. For expats, the FBAR deadline is June 15. Penalties for non-compliance are severe — up to $10,000 per violation for non-willful failures, and up to 50% of account value per year for willful violations.
Foreign Tax Credit: The Alternative to FEIE
The Foreign Tax Credit (FTC) on Form 1116 allows US taxpayers to offset US tax liability with income taxes paid to foreign governments on the same income — reducing or eliminating double taxation. Unlike FEIE (which excludes income), FTC reduces the US tax bill by the foreign tax paid. FTC is generally more beneficial than FEIE for higher-income earners or those in high-tax countries (UK, Germany, France, Australia). FEIE is generally better for lower-income earners and those in low-tax countries. The choice is irrevocable for the year elected — and the FEIE vs FTC guide covers how to make this decision.
Introduction

America's citizenship-based taxation (CBT) system means that US citizens and permanent residents owe US taxes no matter where in the world they live. This is the defining difference between being an American expat and an expat of any other nationality — most countries only tax residents, not citizens.

This hub is the highest-revenue cluster on CountryTaxCalc per page: the 17 US expat guides serve a highly motivated audience — Americans abroad who face real, ongoing compliance obligations that cannot be ignored — and Greenback's core customer base. Every guide is sourced from IRS publications, US tax code, and official treaty documents.

For US citizens considering moving abroad for the first time, start with the US Citizen Abroad Tax Guide for the full picture. If you're already abroad and dealing with a specific issue, use the topic guides below.

Section 01

Core US Expat Filing Guides

The foundational guides for understanding US expat tax obligations — start here if you're new to expat filing or need a comprehensive overview:

Section 02

Green Card Holders & Non-Citizen Residents

Permanent residents (green card holders) have the same US tax filing obligations as US citizens — with some important differences around tax treaty positions and the implications of abandoning permanent residency:

Section 03

Country-Specific US Expat Guides

Guides specifically written for US citizens living in the most popular expat destinations — combining the US expat filing rules with the local country's tax treatment:

Section 04

Related Hubs

US expat tax is the thread that connects several other topic areas:

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FAQ

Frequently Asked Questions

Do US citizens living abroad have to file US taxes?

Yes. US citizens and green card holders must file US federal tax returns regardless of where they live, if their income exceeds the filing threshold. For 2024, the filing threshold for a single filer under 65 is $14,600. There is no exemption for expats — the US taxes its citizens on worldwide income. The filing deadline for expats is June 15 (with an automatic 2-month extension from the standard April 15 deadline). Additional extensions to October 15 can be requested. Failure to file has the same penalties as for US-based taxpayers — plus FBAR and FATCA penalties for unreported foreign accounts and assets.

What is the Foreign Earned Income Exclusion (FEIE)?

The FEIE allows qualifying US citizens and resident aliens living and working abroad to exclude up to $126,500 (2024) of foreign earned income from US federal income tax. The exclusion is indexed for inflation annually. To qualify, you must meet either the Physical Presence Test (330 full days outside the US in any 12-month period beginning or ending in the relevant tax year) or the Bona Fide Residence Test (established as a genuine resident of a foreign country for an uninterrupted period that includes the full tax year). The FEIE applies only to earned income from work — salary, wages, self-employment. It does not exclude investment income, pension income, US-sourced income, or income from US employers above the threshold.

What is FBAR and who must file it?

FBAR (FinCEN Report 114, officially the Report of Foreign Bank and Financial Accounts) must be filed by any US person who has a financial interest in, or signature authority over, one or more foreign financial accounts where the aggregate maximum value exceeds $10,000 at any point during the calendar year. 'US person' includes US citizens, green card holders, US corporations, partnerships, trusts, and estates. Foreign financial accounts include bank accounts, brokerage accounts, mutual funds, and certain insurance policies — not foreign real estate held directly. FBAR is filed electronically with FinCEN by April 15 (June 15 for expats; October 15 on extension). Non-willful failure to file can result in penalties of $10,000 per violation per year; willful failure can be 50% of account value per year.

Can I avoid US taxes by renouncing US citizenship?

Yes — renouncing US citizenship terminates future US worldwide tax obligations. However, renunciation triggers the expatriation tax rules under IRC Section 877A. 'Covered expatriates' — those who meet a net worth test ($2 million+), a 5-year average annual net tax liability test ($201,000+ for 2024), or failed to certify 5-year US tax compliance — are subject to a deemed sale of all worldwide assets at fair market value on the expatriation date, with gain above $866,000 (2024 exclusion) taxed at capital gains rates. Distributions from tax-deferred accounts (IRAs, 401Ks) are subject to a 30% withholding tax. Renouncing citizenship is irrevocable and has significant non-tax implications — it should be considered carefully with specialist advice.

Do I need to report foreign bank accounts to the IRS?

Yes — through two separate reporting systems. FBAR (FinCEN 114) requires reporting if aggregate foreign account balances exceed $10,000 at any point in the year. FATCA (Form 8938) requires reporting if the value of specified foreign financial assets exceeds $200,000 at year end (or $300,000 at any point) for expats filing as single. Both forms must be filed even if no tax is owed. FBAR is filed with FinCEN; Form 8938 is filed with your tax return. The thresholds and forms are different — both may need to be filed in the same year. FATCA also requires foreign financial institutions to report US persons' account information to the IRS, meaning non-disclosure has significant detection risk.

Can US expats use the Foreign Tax Credit instead of FEIE?

Yes — US expats can choose to claim the Foreign Tax Credit (FTC) instead of or in addition to the FEIE. The FTC (Form 1116) allows a dollar-for-dollar credit against US tax for income taxes paid to foreign governments. The FEIE excludes income; the FTC reduces the US tax bill by the foreign tax paid. The FEIE is generally more beneficial for expats in low-tax countries (UAE, Singapore) or those with lower incomes. The FTC is generally more beneficial for expats in high-tax countries (UK, Germany, France) where foreign taxes paid may equal or exceed the US tax liability. An election to use FEIE is considered revoked if you claim FTC on the same income, and re-election requires IRS approval for 5 years. The FEIE vs FTC guide provides worked examples.
Disclaimer:US expat tax law — including FEIE exclusion amounts, FBAR thresholds, FATCA reporting requirements, and treaty provisions — changes annually. All figures in the linked guides are sourced from official IRS publications and reviewed at the date shown. This hub provides general educational information only — not tax or legal advice. US expat tax situations are highly individual and often complex. Consult a qualified US expat tax specialist (CPA or EA with international tax experience) for personal advice.
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