An estimated 10 million Americans live outside the United States. Most assume that leaving the US also means leaving US tax responsibilities behind; however, this isn’t the case.
The US taxes its citizens’ worldwide income based on their US citizenship rather than on residence. This meant that an American living in London, Singapore, Dubai, or Sydney still has to file a US tax return every year. The requirement applies even if all your income originates outside the United States.
The rules are manageable once you understand them. The real challenge, though, comes from new, unfamiliar reporting requirements for expats, including international bank disclosures and coordination with foreign tax systems.
In this article, we provide an overview of what Americans abroad need to know about filing US expat taxes, including deadlines, how to avoid double taxation, reporting on foreign assets, business activities, and accounts, and common mistakes.
The US taxes citizens worldwide
The United States is one of the only countries that taxes all of its citizens’ worldwide income. This applies regardless of where in the world you live, work, or earn income.
Americans abroad must generally file a US tax return if their income exceeds the standard filing thresholds. Those thresholds are the same as if you’re living in the US, being the standard deduction amount ($15,750 for single filers in 2025 for filing in 2026) or over $400 of self-employment income, or just $5 if your filing status is married filing separately.
Reportable income includes:
- Employment income – Salaries, bonuses, commissions, and freelance earnings from foreign employers all count as taxable income for US purposes.
- Investment income – Interest, dividends, and capital gains from foreign investment accounts must appear on a US tax return.
- Rental income – Income from property located inside or outside the United States still counts as taxable income.
All your income should be reported in US dollars on your US tax return, so you have to convert income received abroad.
Citizenship-based taxation also creates another issue for Americans abroad: the possibility of double taxation.
Fortunately, several provisions exist to reduce or eliminate that risk.
The Foreign Earned Income Exclusion
The Foreign Earned Income Exclusion, often referred to as the FEIE, remains one of the most valuable tax benefits available to Americans abroad.
The FEIE allows qualifying taxpayers to exclude a portion of their foreign employment income from US taxation. For the 2025 tax year (for filing in 2026), the exclusion allows up to $130,000 of foreign earned income per person.
Married couples who both qualify can exclude twice that amount.
The IRS requires taxpayers to meet one of two residency tests before claiming the FEIE:
- The Physical Presence Test – you must spend at least 330 full days outside the United States during a 12-month period that overlaps with the tax year.
- The Bona Fide Residence Test – you must demonstrate long-term residence in another country for an entire tax year.
Each test carries specific technical requirements. MyExpatTaxes software ****walks you through the process, or you can consult with an expat tax pro.
The FEIE applies only to earned income, so passive income such as investment income, rental income, and pension income doesn’t qualify for the exclusion. To claim the FEIE, you must file Form 2555 with your tax return.
The Foreign Tax Credit
Many Americans abroad pay income tax to their country of residence. Claiming the Foreign Tax Credit allows expats to claim a dollar-for-dollar credit for income taxes they’ve already paid to a foreign government.
In many situations, the credit eliminates US tax liability entirely, and is often more beneficial than the Foreign Earned Income Exclusion, especially if you live in a country with higher tax rates than the United States. Claiming the FTC rather than the FEIE also lets you contribute to US retirement plans and claim other benefits, such as the refundable Child Tax Credit, more easily.
Some taxpayers combine the Foreign Earned Income Exclusion and the Foreign Tax Credit, but this strategy works best if your income exceeds the FEIE limit or when some of your income types do not qualify for exclusion.
Each expat’s situation requires careful analysis, as claiming the exclusion can reduce the amount of Foreign Tax Credits available to you.
Experienced expat tax advisors, and the MyExpatTaxes software, evaluate both approaches before deciding which is most beneficial for you.
US expats get an automatic filing extension
Many Americans abroad worry about the April 15th tax deadline; however, the IRS provides additional time for taxpayers living outside the United States.
Americans abroad receive an automatic two-month extension to file their federal tax return. That moves the filing deadline to June 15th.
Interest still accrues on any owed tax after April 15; however, although most expats don’t end up owing any US taxes if they claim the FEIE or the FTC.
Taxpayers who need more time after June 15th can request an additional extension until October 15th.
Foreign bank accounts trigger additional reporting
Having foreign bank accounts creates one of the most misunderstood compliance requirements for Americans abroad.
The US requires Americans to report certain foreign financial accounts through the FBAR (Foreign Bank Account Report).
You have to file an FBAR when the combined value of any foreign financial accounts you have signatory authority or control over exceeds $10,000 at any time during the year.
The rule includes more than just bank accounts. It can also apply to:
- Foreign savings or checking accounts – Any account held with a non-US bank or financial institution counts toward the reporting threshold.
- Foreign investment accounts – Brokerage accounts, foreign mutual funds, and investment portfolios held outside the US may trigger reporting requirements.
- Joint accounts or signature authority – Even accounts owned jointly with a spouse or employer can fall within the FBAR rules.
Taxpayers file the FBAR electronically through the Financial Crimes Enforcement Network rather than the IRS.
Not filing an FBAR when you should carries severe penalties, starting at $10,000 per year. Note also that foreign financial institutions are also reporting your account to the US directly, so they know who should be filing.
Additionally, you may have to report your foreign financial assets on Form 8938 under Foreign Account Tax Compliance Act (FATCA) rules.
Self-employed expats still owe US self-employment tax
Freelancers and business owners face an additional tax issue when living abroad.
The Foreign Earned Income Exclusion reduces income tax, but it does not eliminate US self-employment taxes.
Self-employed Americans abroad generally pay US Social Security and Medicare taxes on their net earnings.
Some taxpayers qualify for relief through treaties known as Totalization Agreements the United States has signed with certain countries. These agreements prevent workers from paying Social Security taxes to two countries simultaneously.
Eligibility depends on your country of residence and the structure of your business.
Expats who run businesses abroad often benefit from professional tax advice, as the way you structure your business can have a big impact on your tax liability and reporting obligations. If you have a foreign corporation for example, you’ll have to report it on Form 5471.
Common mistakes Americans abroad make
Many Americans abroad encounter the same problems during their first few years overseas.
The most common mistakes include the following:
- Assuming foreign income does not require reporting, US citizens must still report worldwide income even if another country already taxes it.
- Missing foreign bank account disclosures: Many expats fail to file an FBAR because they don’t realize they have to.
- Choosing the wrong tax strategy: Claiming the Foreign Earned Income Exclusion without analyzing the Foreign Tax Credit can increase tax liability.
- Filing late returns for multiple years: Americans abroad sometimes delay filing because the rules seem confusing.
For expats who have been living abroad for several years but have not filed US taxes because they didn’t know they had to, there’s an IRS program that allows you to catch up on missed filings without penalties called the Streamlined Procedure.
Don’t delay, though, as if the IRS contacts you first, you won’t qualify and will be liable for penalties and back taxes.
MyExpatTaxes can help you catch up with the Streamlined Procedures program.
Tax treaties
The United States has signed tax treaties with over 60 countries; however, while these agreements help coordinate taxation between governments, unfortunately, they don’t prevent expats from having to file US taxes from abroad.
Treaties can reduce withholding taxes on investment income or clarify which country taxes certain types of income. Some also prevent double taxation of certain types of income, such as retirement income.
If you do want to claim a tax treaty provision, you’ll need to file Form 8833.
When should Americans abroad seek professional help?
You can file your taxes on the award-winning MyExpatTaxes software, which calculates the best exclusions or credits for you to claim as an expat and depending on your circumstances.
Complexity increases quickly if you have foreign investments or corporations, self-employment income, or retirement accounts in another country.
Professional tax advice becomes particularly valuable in situations involving:
- Foreign corporations or business ownership
- Foreign mutual funds or investment funds
- Cross-border retirement planning
- Late filings or prior non-compliance
MyExpatTaxes also lets you consult with an experienced expat Tax Professional if you need to.
Living abroad brings amazing professional and personal opportunities, but it doesn’t exempt you from your US tax obligations – in fact, they often become more complex once you live overseas. Research your obligations, and head on over to MyExpatTaxes to find out more about how we can help you stay compliant and optimized as an American living abroad.
Nathalie Goldstein, EA is co-founder and CEO of MyExpatTaxes, the award-winning software and service for Americans living abroad.




