If you leave the United States, you still pay U.S. taxes. Citizenship-based taxation means every U.S. citizen and every green card holder owes federal income tax on worldwide income, no matter where they live or how long they have been gone. Moving abroad does not pause the obligation, and neither does paying taxes to another country. The good news is that the tax code has built-in tools to prevent double taxation, and most Americans overseas who file carefully end up owing the IRS little or nothing.
Why Leaving Does Not End Your Filing Duty
The United States taxes based on who you are, not where you live. If you hold a U.S. passport or a green card and your gross income meets the filing threshold for your status, you file a federal return.1Internal Revenue Service. U.S. Citizens and Residents Abroad – Filing Requirements Gross income covers everything you receive worldwide: salary, freelance work, rent, investments, business profits. For a single filer under 65, the 2025 threshold is $15,750.2Internal Revenue Service. Check if You Need to File a Tax Return Income you later exclude still counts toward whether you have to file in the first place.
The deadline shifts if you are abroad. When both your home and workplace are outside the United States on April 15, you automatically get until June 15 to file and pay, with no request needed.3Internal Revenue Service. U.S. Citizens and Resident Aliens Abroad – Automatic 2-Month Extension of Time to File Interest on unpaid tax still runs from April 15, though, so the extra time is for paperwork, not for holding onto money. You can push the filing deadline further to October 15 by submitting Form 4868.
How to Avoid Paying Twice
Two IRS provisions exist to keep you from paying full income tax to both a foreign government and the United States on the same dollars. Between them, most Americans abroad zero out their U.S. income tax liability.
The Foreign Earned Income Exclusion
The Foreign Earned Income Exclusion (FEIE) removes a chunk of foreign wages and self-employment income from your U.S. return entirely. For 2026, the cap is $132,900.4Internal Revenue Service. Figuring the Foreign Earned Income Exclusion You claim it on Form 2555, and you have to pass one of two tests:
- The bona fide residence test: you live in a foreign country for an uninterrupted period that includes a full calendar year from January 1 through December 31.5Internal Revenue Service. Instructions for Form 2555 (2025)
- The physical presence test: you are physically present in a foreign country for at least 330 full days during any 12 consecutive months.5Internal Revenue Service. Instructions for Form 2555 (2025)
The FEIE only covers earned income. Dividends, interest, and rent are not eligible. It works best in low-tax countries, because it strips the income out of your U.S. return whether or not you paid tax on it locally.
The Foreign Housing Exclusion
On top of the FEIE, you can exclude qualifying housing costs like rent, utilities, and insurance for your foreign home above a base amount. The 2026 general cap on qualifying expenses is $39,870, and the IRS publishes higher caps for specific expensive cities.4Internal Revenue Service. Figuring the Foreign Earned Income Exclusion Self-employed filers take housing costs as a deduction rather than an exclusion. Both go on Form 2555.
The Foreign Tax Credit
The Foreign Tax Credit (FTC) takes the opposite approach from the FEIE. Instead of removing income, it gives you a dollar-for-dollar credit against your U.S. tax for income tax you already paid to a foreign government.6Internal Revenue Service. Foreign Tax Credit You claim it on Form 1116, and it covers both earned and passive income, which makes it the only real relief for investment returns, rental income, and dividends.
If you live somewhere that taxes income more heavily than the United States does, the FTC usually wins, because the foreign tax you already paid can wipe out your U.S. liability on that income. You can use the FEIE and the FTC in the same year, but not on the same dollars. A common approach: apply the FEIE to earned income up to the cap, then use the FTC on any earned income above the cap and on all passive income.
The Self-Employment Tax Trap
The FEIE does not touch self-employment tax. If your net self-employment income hits $400, you owe Social Security and Medicare tax on it even when the income itself is fully excluded from income tax.7Internal Revenue Service. Self-Employment Tax for Businesses Abroad A freelancer earning $100,000 abroad might owe no federal income tax and still face a self-employment tax bill of roughly $14,100.
The escape is a totalization agreement. The United States has these with about 30 countries, including Canada, the United Kingdom, Germany, France, Japan, Australia, and most of Western Europe.8Social Security Administration. Country List 3 If you work in one of those countries and pay into its social security system, you can get a certificate of coverage that exempts you from U.S. self-employment tax. Without an agreement, you pay both systems.
Reporting Your Foreign Accounts
Living abroad usually means holding foreign bank accounts, pensions, and investments, and those trigger reporting requirements that sit outside your tax return. The forms themselves do not create tax liability. The penalties for missing them do.
FBAR (FinCEN Form 114)
If the combined balance of all your foreign financial accounts crosses $10,000 at any point in the year, you file a Report of Foreign Bank and Financial Accounts with the Financial Crimes Enforcement Network.9Internal Revenue Service. Report of Foreign Bank and Financial Accounts (FBAR) It covers checking, savings, brokerage accounts, mutual funds, and certain foreign pensions. Filing is electronic through FinCEN’s BSA E-Filing System, separate from your tax return, and the deadline is April 15 with an automatic extension to October 15.
Non-willful FBAR violations can be penalized up to $16,536 per account per year.10eCFR. 31 CFR 1010.821 – Penalty Adjustment and Table Willful violations are worse: the penalty is the greater of roughly $100,000 (adjusted for inflation) or 50% of the account balance at the time of the violation, plus possible criminal exposure for intentional evasion.
Form 8938
Form 8938 covers a wider set of foreign financial assets: bank accounts, foreign company stock, foreign partnerships, and certain foreign trusts. It is filed with your tax return. The thresholds depend on where you live, and this is where being abroad helps. A single filer living in the United States has to file if foreign assets exceed $50,000 on the last day of the year or $75,000 at any point during the year.11Internal Revenue Service. Do I Need to File Form 8938, Statement of Specified Foreign Financial Assets? Living abroad, those thresholds jump to $200,000 on the last day of the year or $300,000 at any point during the year.12Internal Revenue Service. Instructions for Form 8938 (Rev. November 2021)
The base penalty for failing to file is $10,000. If you still haven’t filed 90 days after the IRS notice, another $10,000 accrues every 30 days, up to an additional $50,000.13GovInfo. 26 USC 6038D
Your Former State May Still Want a Return
Federal tax is only half the picture. Nine states have no income tax, so if that was your last state of residence, the state side is settled. Everywhere else, the question is domicile, and most states treat your domicile as unchanged until you affirmatively establish a new one somewhere else. Leaving the country by itself does not sever it.
If you kept a home, a driver’s license, voter registration, or bank accounts in your former state, that state has a strong argument you never really left for tax purposes. Some states pursue this aggressively, and taxpayers have been assessed state income tax years after moving overseas because they never formally abandoned their domicile. The cleanest move, if you can plan ahead, is to establish domicile in a no-tax state before you leave. If you are already abroad, check your former state’s specific rules for severing domicile; canceling voter registration, surrendering your driver’s license, and closing local bank accounts are typical steps, but the requirements vary.
The Only Way to Stop Filing Forever
There is one way, and only one, to end the filing obligation: terminate your status as a U.S. person. Letting your passport lapse, living abroad for decades, paying tax only to another country — none of it changes anything. The IRS does not care how long you have been gone.
Renouncing Citizenship
Citizens formally renounce by taking an oath of renunciation in person at a U.S. embassy or consulate abroad.14U.S. Department of State. Relinquishing U.S. Nationality Abroad The process takes at least two consular interviews, several forms, and a $450 administrative fee, reduced recently from $2,350.15Federal Register. Schedule of Fees for Consular Services – Fee for Administrative Processing of Request for Certificate of Loss of Nationality of the United States Renunciation is irrevocable, and you need citizenship or legal residency somewhere else, because you cannot enter the United States freely afterward.
Giving Up a Green Card
Long-term residents (green card holders for at least 8 of the last 15 tax years) end their U.S. tax status by formally abandoning permanent residence.16Internal Revenue Service. Instructions for Form 8854 (2025) That means filing Form I-407 with a U.S. consular or immigration officer and handing over the card. Both former citizens and former long-term residents also file Form 8854 with the IRS and notify the Department of Homeland Security (green card holders) or the Department of State (citizens).17Internal Revenue Service. Expatriation Tax
The Exit Tax
Renouncing does not always mean a clean break. If you qualify as a “covered expatriate,” you owe an expatriation tax that treats your worldwide assets as if you sold them the day before leaving. This mark-to-market regime can create a large capital gains bill on assets you have not actually sold.
You are a covered expatriate if any one of these applies:18Internal Revenue Service. 2025 Instructions for Form 8854
- Net worth test: net worth of $2 million or more on the date of expatriation.
- Tax liability test: average annual net income tax liability for the five prior years above an inflation-adjusted threshold ($206,000 for 2025; the 2026 figure had not been published at the time of writing).
- Compliance test: failure to certify on Form 8854 that you met all federal tax obligations for the five preceding years.
The compliance test is the one that catches people who assumed they were safely under the money thresholds. Miss a few returns and you are a covered expatriate by default. For 2025, a covered expatriate can shelter $890,000 of the deemed gain with an exclusion that adjusts for inflation each year.18Internal Revenue Service. 2025 Instructions for Form 8854 Gain above that amount is taxed as capital gains in the year you expatriate. Retirement accounts and deferred compensation follow separate rules and often face a flat 30% withholding on future distributions.
Catching Up If You Never Filed
Plenty of Americans abroad simply did not know they had to file. Some were born overseas to U.S. parent(s) and never set foot in the country. Others assumed paying local tax was the whole obligation. The IRS has a program for this.
The Streamlined Foreign Offshore Procedures let you come into compliance without penalties, as long as your failure to file was non-willful — a mistake, negligence, or a good-faith misunderstanding rather than deliberate evasion.19Internal Revenue Service. Streamlined Filing Compliance Procedures You have to live outside the United States, file the last three years of income tax returns, file the last six years of FBARs, and certify non-willfulness. You are not eligible if the IRS is already examining you or has opened a criminal investigation.
Former citizens who never filed and want to renounce cleanly have a narrower option: the Relief Procedures for Certain Former Citizens. Net worth must be under $2 million, total tax liability for the six relevant years must be $25,000 or less, and you must have no prior filing history as a U.S. person.20Internal Revenue Service. Relief Procedures for Certain Former Citizens Qualify, and you avoid covered expatriate status and owe no back taxes or penalties for those years.