Last Updated on March 23, 2026
If you’re an American living overseas, your US tax obligations don’t disappear. The United States taxes its citizens on worldwide income – no matter where they live. Whether you’re working in Portugal, teaching in Thailand, or raising a family in Germany, US expat taxation still applies every year.
The good news is that US tax law includes tools built specifically to reduce – or even eliminate – double taxation for Americans abroad. Working with an overseas tax consultant from the start can help you use these tools correctly and avoid costly mistakes.
Do Americans abroad have to pay US taxes?
Yes. American expatriate tax rules are based on citizenship, not where you live. As a US citizen or green card holder, you must file a federal return if your income exceeds the standard filing thresholds. For the 2025 tax year, that’s:
- $15,000 for single filers
- $30,000 for married couples filing jointly
Filing a return doesn’t always mean paying tax. Several exclusions and credits exist to reduce the burden on US taxpayers living abroad – and knowing how to use them is the foundation of smart expat tax planning.
The Foreign Earned Income Exclusion (FEIE)
The Foreign Earned Income Exclusion is one of the most useful tools in US expatriate taxation. For the 2025 tax year, it lets you exclude up to $130,000 of foreign-earned income from US taxation.
It applies only to earned income: wages, salaries, and self-employment income from work performed abroad. It does not cover passive income like dividends, interest, rental income, or capital gains.
Who qualifies for the FEIE?
To claim it, you must meet one of two tests and have a foreign tax home:
- Physical Presence Test – You spent at least 330 full days outside the US in any 12-month period
- Bona Fide Residence Test – You are a genuine resident of a foreign country for an uninterrupted period that includes a full calendar year
If both spouses qualify independently, each can claim the exclusion separately – allowing up to $260,000 combined in excluded income for 2025.
The Foreign Tax Credit (FTC)
If you pay income taxes to a foreign government, the Foreign Tax Credit lets you apply those payments as a dollar-for-dollar credit against your US tax bill. This is the main way the US prevents double taxation on foreign income.
The FTC is filed on Form 1116 and covers most income types: wages, business income, dividends, and rental income. You can also combine both strategies – use the FEIE on the first $130,000 of earned income, then apply the FTC on anything above that.
FEIE vs. Foreign Tax Credit – which one to use?
The right choice depends mostly on the tax rate in your country of residence.
| FEIE (Form 2555) | Foreign Tax Credit (Form 1116) | |
| Best for | Low- or no-tax countries | High-tax countries |
| Income covered | Earned income only | All income types |
| 2025 annual limit | $130,000 per person | No fixed cap; limited to US tax owed |
| Can be combined? | Yes, but not on the same income | Yes, but not on the same income |
If your local tax rate is lower than the US rate, the FEIE is usually the better pick. If it’s higher, the FTC typically saves more.
The foreign housing exclusion
If you qualify for the FEIE, you may also claim the Foreign Housing Exclusion. This lets you deduct eligible housing costs – rent, utilities, renter’s insurance – from your US taxable income.
The deductible amount must exceed an IRS-set base figure, which varies by city. If you’re based somewhere expensive like London, Zurich, or Singapore, this exclusion can make a real difference to your expat tax bill.
Self-employment taxes abroad
If you work for yourself – as a freelancer, contractor, or business owner – reducing your US expat tax bill gets a bit more complicated. Even if the FEIE eliminates your income tax, the self-employment (SE) tax still applies at a flat rate of 15.3% on your net self-employment earnings.
There are two ways to reduce this:
- Totalization Agreements – The US has these treaties with around 30 countries. They prevent you from paying Social Security taxes in both countries at the same time. If you’re covered under your host country’s system, you may be exempt from US SE tax entirely.
- Deduct half of your SE tax – Even without a totalization agreement, you can deduct 50% of your SE tax as an adjustment to gross income on your federal return.
Check the IRS website or speak with a tax professional to confirm whether your country of residence has a totalization agreement with the US.
Do you still owe state taxes?
Many Americans living abroad assume that leaving the US means leaving state taxes behind too. That’s not always true.
Some states – including California, Virginia, South Carolina, and New Mexico – are known for being aggressive about maintaining tax residency ties. If you still have a driver’s license, bank account, property, or family in one of these states, they may still consider you a resident and expect a state return.
To break tax residency with a high-tax state before moving abroad:
- Change your driver’s license and voter registration
- Close or move local bank accounts
- Sell or rent out property in the state
- Establish clear ties to a new domicile (either abroad or in a no-income-tax state like Florida or Texas)
Getting this step wrong can cost you thousands. It’s one of the most overlooked parts of expat tax planning.
FBAR and FATCA – Don’t ignore these
Reducing your US overseas tax bill also means staying compliant with two key reporting rules. Missing them can trigger heavy penalties – even if you owe zero tax.
FBAR (FinCEN Form 114)
- Required if your foreign accounts combined exceeded $10,000 at any point during 2025
- Covers bank accounts, brokerage accounts, and foreign retirement accounts
- Deadline: April 15, 2026; automatic extension to October 15, 2026
FATCA (Form 8938)
- Required if specified foreign financial assets exceeded:
- $200,000 on the last day of the year or $300,000 at any time (single filers)
- $400,000 on the last day of the year or $600,000 at any time (married filing jointly)
- Filed together with your federal tax return
2026 filing deadlines for US expats
If you’re filing for the 2025 tax year, keep these dates in mind:
- April 15, 2026 – Standard deadline; also the final date to pay taxes owed
- June 15, 2026 – Automatic two-month extension for Americans living abroad (no form needed)
- October 15, 2026 – Extended deadline if you file Form 4868 by June 15
- December 15, 2026 – Final discretionary extension; must be requested in writing by mail
Note: extensions apply to filing only – not to payment. Taxes owed must still be paid by April 15 to avoid interest and penalties.
Is it worth hiring a tax professional?
Expat tax filing is more complex than a standard US return. The combination of FEIE, FTC, housing exclusion, FBAR, and FATCA leaves a lot of room for error – and for overpaying.
Getting professional help makes the most sense if you:
- Earn income from multiple countries or sources
- Are self-employed or run a business abroad
- Hold foreign bank accounts or investments
- Recently moved abroad or are considering renouncing US citizenship
- Missed filing in previous years – the IRS Streamlined Compliance Procedure was built exactly for this situation
A specialist in taxation for expats can identify which combination of tools works best for your specific situation and make sure you stay fully compliant.
