An American citizen living abroad still owes U.S. taxes on worldwide income, files a federal return whenever gross income crosses the standard thresholds, and typically uses either the foreign earned income exclusion or the foreign tax credit to avoid being taxed twice on the same money. For tax year 2026, a single filer under 65 must file once worldwide gross income reaches $16,100, and qualifying expats can exclude up to $132,900 of earned income from U.S. tax.1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 20262Internal Revenue Service. Figuring the Foreign Earned Income Exclusion Beyond the return itself, separate disclosure rules apply to foreign bank accounts and financial assets, and the penalties for skipping those reports can far exceed any tax you might owe.
The United States is one of only two countries that taxes based on citizenship rather than residence. Moving overseas does not end the relationship. Your citizenship alone makes you a taxpayer, and the IRS expects a return covering income earned anywhere in the world, in any currency, from any source.3Internal Revenue Service. Relief Procedures for Certain Former Citizens Wages from a foreign employer, interest on overseas accounts, dividends from non-U.S. corporations, rent from property abroad, and self-employment earnings from clients outside the U.S. all count. There is no number of years abroad, no foreign passport acquired, and no local tax paid that switches this off.
Who Has to File
Filing thresholds for expats match those for people living in the United States. For tax year 2026, a single filer under 65 must file once worldwide gross income hits $16,100. Head-of-household filers face a threshold of $24,150.1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 For anyone married filing separately, the threshold is just $5 regardless of age.4Office of the Law Revision Counsel. 26 U.S. Code 6012 – Persons Required to Make Returns of Income Gross income here means everything you took in worldwide, including income you can ultimately exclude.
Meeting a filing threshold is one thing. To actually claim the big expat-specific breaks like the foreign earned income exclusion or the housing exclusion, you also need to pass one of two qualifying tests.
Physical Presence Test
You qualify if you are physically in a foreign country for at least 330 full days during any 12 consecutive months. The days do not need to be consecutive, and you can pick whichever 12-month window works best.5Internal Revenue Service. Foreign Earned Income Exclusion – Physical Presence Test A “full day” runs midnight to midnight, so travel days on which you depart or arrive in the U.S. count as domestic days. Keep a detailed log with departure and arrival dates for every trip.
Bona Fide Residence Test
This test looks at the nature of your stay rather than counting days. You qualify if you have established genuine residence in a foreign country for an uninterrupted period that includes at least one full tax year.6Internal Revenue Service. Foreign Earned Income Exclusion The IRS weighs evidence like paying local income taxes, holding a long-term lease or owning a home, having a local work permit, and participating in community life. Brief trips back to the U.S. don’t automatically disqualify you, but your center of life has to have genuinely shifted abroad.
The Foreign Earned Income Exclusion
The foreign earned income exclusion (FEIE) is the most widely used tool for reducing double taxation. For tax year 2026, you can exclude up to $132,900 of foreign earned income from your U.S. taxable income.2Internal Revenue Service. Figuring the Foreign Earned Income Exclusion You claim it on Form 2555, filed with your return.7Internal Revenue Service. About Form 2555, Foreign Earned Income
The exclusion only covers earned income: wages, salaries, and self-employment profits from services you personally performed. Investment income like dividends, interest, capital gains, and rental income does not qualify. Neither do pensions, annuities, or pay from the U.S. government.8Office of the Law Revision Counsel. 26 USC 911 – Citizens or Residents of the United States Living Abroad On a $180,000 foreign salary, you’d exclude $132,900 and owe U.S. tax on the remaining $47,100 before other deductions and credits.
Foreign Housing Exclusion
On top of the FEIE, you can exclude part of your foreign housing costs. The housing cost amount equals your qualifying housing expenses minus a base amount. For 2026, that base is 16% of the FEIE ($21,264 for a full year), and expenses are capped at $39,870 in standard-cost locations.2Internal Revenue Service. Figuring the Foreign Earned Income Exclusion9Internal Revenue Service. Foreign Housing Exclusion or Deduction Maximum additional exclusion works out to roughly $18,600 in a standard-cost location. The IRS publishes higher caps for expensive cities like London, Hong Kong, and Tokyo, so check the Form 2555 instructions for your specific location.
Qualifying expenses include rent, utilities other than phone, insurance on a rented dwelling, and parking. Mortgage payments on a home you own do not count, and neither does purchased furniture or domestic help. The exclusion applies only to employer-provided income. Self-employed expats take a housing deduction instead, which reduces income rather than excluding it.9Internal Revenue Service. Foreign Housing Exclusion or Deduction
The Foreign Tax Credit
The foreign tax credit (FTC) works differently. Instead of removing income from the calculation, it gives you a dollar-for-dollar credit against U.S. tax for income taxes you already paid to a foreign government.10Internal Revenue Service. Instructions for Form 1116 You claim it on Form 1116, converting foreign taxes to U.S. dollars using the exchange rate on the date of payment.
The FTC tends to be more valuable than the FEIE if you live somewhere with higher tax rates than the United States, because the credit can offset most or all of your U.S. liability on that income. In lower-tax countries, the FEIE usually gives the bigger benefit. You can use both provisions in the same year on different categories of income, but you cannot claim the FTC on income you’ve already excluded under the FEIE.
Not every foreign tax qualifies. It must be an income tax or a tax used in place of an income tax. Value-added taxes, sales taxes, and wealth taxes are specifically ineligible.10Internal Revenue Service. Instructions for Form 1116 Keep foreign tax returns and withholding statements as documentation.
Self-Employment Tax Still Applies
Here is where expats often get an unpleasant surprise. The FEIE does not reduce self-employment tax. Even if you exclude all your earned income from federal income tax, you still owe Social Security and Medicare taxes on net self-employment earnings above $400. Self-employed individuals pay both halves, 15.3% of net earnings in total: 12.4% for Social Security on earnings up to $184,500 in 2026, plus 2.9% for Medicare with no cap.11Social Security Administration. Contribution and Benefit Base Earners above $200,000 (single) or $250,000 (married filing jointly) also owe an additional 0.9% Medicare surtax.
Totalization agreements can provide relief. The U.S. has Social Security agreements with 30 countries, including the United Kingdom, Canada, Germany, France, Japan, Australia, and South Korea.12Social Security Administration. U.S. International Social Security Agreements If you live in a country with an active agreement and contribute to its social security system, you may be exempt from U.S. self-employment tax. You’ll need a Certificate of Coverage from the foreign country’s social security agency to claim the exemption.13Internal Revenue Service. Totalization Agreements If your country of residence isn’t on the list, expect to owe both U.S. self-employment tax and local social contributions with no treaty relief.
Reporting Foreign Accounts and Assets
Owing tax is one thing. Failing to report the existence of foreign accounts is another, and the penalties for reporting failures can dwarf the underlying tax. Two separate disclosure requirements apply to most expats.
FBAR (FinCEN Form 114)
If the combined value of all your foreign financial accounts exceeds $10,000 at any point during the year, you must file a Report of Foreign Bank and Financial Accounts. This filing goes to the Financial Crimes Enforcement Network, not the IRS, and is submitted electronically through the BSA E-Filing System.14Financial Crimes Enforcement Network. How Do I File the FBAR The FBAR is due April 15, with an automatic extension to October 15 if you miss the original deadline. No request is needed.15Internal Revenue Service. Report of Foreign Bank and Financial Accounts (FBAR)
The $10,000 threshold is aggregate across all foreign accounts, not per account. Three accounts holding $4,000 each will cross it. You must report the maximum balance of each account during the year, along with account numbers and institution names and addresses.
FBAR penalties are severe. For non-willful violations, the statutory maximum is $10,000 per violation, adjusted upward for inflation each year. For willful failures, the penalty jumps to the greater of $100,000 (also inflation-adjusted) or 50% of the account balance at the time of the violation, and criminal prosecution is possible.16Office of the Law Revision Counsel. 31 USC 5321 – Civil Penalties The line between non-willful and willful often comes down to whether the IRS believes you knew about the requirement and chose to ignore it.
Form 8938 (FATCA Reporting)
The Foreign Account Tax Compliance Act created a separate reporting requirement on Form 8938, filed with your tax return. For expats filing individually, the threshold is $200,000 in total foreign asset value on the last day of the tax year, or $300,000 at any point during the year.17Internal Revenue Service. Do I Need to File Form 8938, Statement of Specified Foreign Financial Assets Joint filers living abroad have even higher thresholds. Domestic thresholds start much lower, at $50,000.
Form 8938 covers a broader range of assets than the FBAR. Beyond bank accounts, it captures foreign stocks, bonds, mutual funds, interests in foreign entities, and financial instruments issued by foreign institutions. Failing to file carries an initial penalty of $10,000, plus an additional $10,000 for each 30-day period you continue to miss it after the IRS sends a notice, up to $60,000.18Internal Revenue Service. Instructions for Form 8938 These penalties apply whether or not you actually owe tax on the assets.
The FBAR and Form 8938 overlap. Many of the same accounts appear on both. They go to different agencies, use different thresholds, and carry different penalties, so filing both is often necessary.
Deadlines, Extensions, and Late Penalties
If you live abroad and your main place of business is outside the United States on the regular April 15 due date, you get an automatic two-month extension to June 15. No form or request needed. You can request a further extension to October 15 using Form 4868.19Internal Revenue Service. U.S. Citizens and Resident Aliens Abroad – Automatic 2-Month Extension of Time to File
The extension covers filing only. Interest on any unpaid tax starts running from April 15 regardless of where you live.20Internal Revenue Service. U.S. Citizens and Resident Aliens Abroad If you owe and can pay, do it by April 15 even if the return isn’t finished.
The failure-to-file penalty runs 5% of unpaid tax per month up to 25%. The failure-to-pay penalty is 0.5% per month, also up to 25%. If your return is more than 60 days late, the minimum failure-to-file penalty for returns due in 2026 is the lesser of $525 or 100% of the tax owed.21Internal Revenue Service. IRS Notices and Bills, Penalties and Interest Charges The filing penalty runs ten times worse than the payment penalty, so file the return even if you can’t pay in full.
E-filing through an authorized provider or IRS Free File is the simplest route from abroad. For electronic payments, IRS Direct Pay pulls funds directly from a bank account with no enrollment. The Electronic Federal Tax Payment System is another option but requires registration in advance.22Electronic Federal Tax Payment System. Electronic Federal Tax Payment System Save confirmation numbers either way.
State Taxes May Still Apply
Federal taxes get most of the attention, but your former state may still consider you a resident and expect a return. Nine states have no personal income tax on wages: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. If you lived in one of these before moving abroad, this isn’t a concern.
For everyone else, it depends on whether your state treats your departure as ending residency. Some states release you fairly easily once you establish a foreign home. Others are difficult. California and New York are the most aggressive, weighing factors like whether you kept property, kept a driver’s license, stayed registered to vote, or left family behind to argue you never truly left. Virginia and South Carolina have similar reputations. Each state sets its own rules, and no federal standard overrides them. If you lived in an income-tax state, check that state’s specific requirements for establishing non-residency.
Catching Up if You Haven’t Filed
Many Americans abroad discover their filing obligations years after moving overseas, especially those who left as children or dual citizens who never lived in the U.S. as adults. The IRS offers the Streamlined Foreign Offshore Procedures for these situations, and the terms are considerably more forgiving than the standard penalty structure.23Internal Revenue Service. U.S. Taxpayers Residing Outside the United States
To qualify, you have to meet three conditions:
- Your failure to file resulted from negligence, misunderstanding, or an honest mistake rather than intentional avoidance.
- In at least one of the three most recent tax years, you had no U.S. home and were physically outside the U.S. for at least 330 full days. For joint filers, both spouses must meet this requirement.
- The IRS has not already started a civil examination of your returns.
If you qualify, you file the most recent three years of delinquent or amended returns plus six years of FBARs, along with a certification explaining the non-willful nature of the failure. The key benefit is that no penalties apply: no late-filing penalties, no late-payment penalties, no FBAR penalties, and no Form 8938 penalties.23Internal Revenue Service. U.S. Taxpayers Residing Outside the United States You will still owe any tax due plus interest, but eliminating the penalty exposure is substantial given the numbers above.
Renouncing Citizenship
Some long-term expats eventually consider renouncing U.S. citizenship to end the filing obligations permanently. The administrative fee for renunciation dropped to $450 effective April 13, 2026, down from the previous $2,350.24Federal Register. Schedule of Fees for Consular Services – Fee for Administrative Processing of Request for Certificate of Loss of Nationality The fee is the smallest cost to worry about.
The tax code imposes an exit tax on “covered expatriates,” meaning anyone who meets any one of three criteria: a net worth of $2 million or more, an average annual net income tax liability exceeding roughly $211,000 over the five years before expatriation (inflation-adjusted), or a failure to certify full tax compliance for the five preceding years.25Office of the Law Revision Counsel. 26 U.S. Code 877A – Tax Responsibilities of Expatriation For a covered expatriate, the IRS treats all worldwide assets as if sold the day before you gave up citizenship, and any unrealized gains above an inflation-adjusted exclusion are taxed as if you had actually cashed out.
Even below the covered expatriate thresholds, renunciation requires filing a final dual-status return (Form 1040 through the date of expatriation) and Form 8854. Renouncing does not retroactively erase past filing obligations. If you have unfiled years, address them first through the streamlined procedures, because walking into a consulate with a trail of missing returns creates exactly the complications you’re trying to avoid.