How to Report Foreign Income on a US Tax Return

If you are a US citizen or green card holder with money coming in from outside the country, the process to report foreign income on a US tax return starts with the same Form 1040 everyone else uses, plus one or more attachments that either exclude the income (Form 2555) or credit the foreign tax you already paid (Form 1116), and separate disclosures for the accounts themselves (the FBAR and Form 8938) once their balances cross set thresholds. The tax return and the account disclosures are independent obligations. Missing either one carries its own penalty.

Who Has to Report

The United States taxes based on citizenship and residency, not the location of the income. If you are a US citizen, a lawful permanent resident, or a foreign national who meets the substantial presence test, the IRS expects your worldwide income on a federal return.¹ The rules for filing and paying estimated tax are the same whether you live in Dallas or Dubai.²

This applies even if you have lived abroad for decades, even if you already pay a foreign government, and even if the money never touches an American bank. Where the funds sit does not matter to the IRS. That you earned them does.

What Counts as Foreign Income

Foreign income splits into two categories. Earned income is pay for personal services: wages, salaries, bonuses, consulting fees, and self-employment profits from work performed outside the United States.³ The source is where you do the work, not where the employer is based or where the paycheck lands.

Unearned (passive) income covers interest on foreign bank accounts, dividends from foreign corporations, rental income from overseas property, capital gains on foreign stocks or real estate, royalties, and pension distributions. None of these qualify for the foreign earned income exclusion.

If you are self-employed and your net earnings reach $400, you must file a return and pay self-employment tax (Social Security and Medicare) on those earnings, even if the income itself is excludable from income tax.⁴ The exclusion does not reach self-employment tax.⁵

One boundary worth flagging early: foreign mutual funds and similar pooled investments held outside the US are usually classified as Passive Foreign Investment Companies (PFICs). A foreign corporation is a PFIC if 75% or more of its gross income is passive, or if at least 50% of its assets produce passive income.⁶ The default tax treatment is harsh, and each PFIC must be reported each year on Form 8621. If you hold foreign funds, price out the reporting cost before assuming ordinary investment rules apply.

Avoiding Double Tax: The Foreign Earned Income Exclusion

The foreign earned income exclusion (FEIE) is the main tool for wages and self-employment income earned abroad. For the 2026 tax year, you can exclude up to $132,900 of qualifying foreign earned income from your US taxable income.⁷ You claim it on Form 2555 attached to Form 1040. Your tax home must be in a foreign country, and you must pass one of two residency tests.

Physical Presence Test

You qualify if you are physically present in a foreign country for at least 330 full days during any 12 consecutive months.⁸ The 12-month period does not need to line up with a calendar year. Days in transit over international waters or airspace do not count. Keep a travel log and passport stamps; you will need them if asked.

Bona Fide Residence Test

This test requires you to be a genuine resident of a foreign country for an uninterrupted period covering at least one full tax year. Brief trips back to the US are fine as long as you intend to return to your foreign home without unreasonable delay. The IRS weighs the totality of your situation: permanent quarters, foreign tax payments, community ties. If you tell the foreign authorities you are not a resident there and they accept that, you cannot claim bona fide residence for FEIE purposes.⁹

Foreign Housing Exclusion or Deduction

On top of the earned income exclusion, you can exclude or deduct certain housing costs (rent, utilities, property insurance, and similar expenses) above a base amount. For 2026, the general housing expense limit is $39,870, which is 30% of the $132,900 maximum exclusion.¹⁰ Employees claim the housing exclusion; the self-employed claim the housing deduction. Both go on Form 2555.

Avoiding Double Tax: The Foreign Tax Credit

The foreign tax credit (FTC) takes a different route. Instead of excluding income, it reduces your US tax dollar-for-dollar by the income tax you already paid to a foreign government.¹¹ You claim it on Form 1116, reporting the type and amount of foreign tax paid, converted to US dollars.

Hold on to official receipts or tax statements from the foreign authority showing the amount and dates. You will need to sort your foreign income by category (general category income like wages and business profits, passive category income like interest, dividends, and rents) because the credit is calculated separately for each. The credit cannot exceed the US tax attributable to your foreign-source income, so it will not generate a refund on its own. Unused credits carry back one year or forward up to ten years.

You cannot claim the foreign tax credit on income you excluded (or could have excluded) under the FEIE. Attempting to do so is treated as revoking the FEIE election.¹² You can, however, use both tools in the same year: apply the FEIE to earned income up to the $132,900 limit, then claim the FTC on any remaining earned income above the exclusion and on passive income the FEIE does not cover.

Reporting Foreign Accounts and Assets

The account disclosures sit apart from the income question. They are information returns, and they apply even in years you owe no tax.

FBAR (FinCEN Form 114)

If the combined value of all your foreign financial accounts exceeds $10,000 at any point during the calendar year, you must file a Report of Foreign Bank and Financial Accounts.¹³ The threshold is aggregate, not per account. Three accounts holding $4,000 each that briefly overlap at $12,000 total for a single day cross the line. The FBAR covers bank accounts, brokerage accounts, mutual funds, and certain foreign pension or retirement accounts where you have a financial interest or signature authority.

For each account, you will report the institution’s name and address, the account number, the type of account, and the maximum value it reached during the year. Use the Treasury Department’s official exchange rate for the last day of the calendar year to convert balances.¹³

The FBAR is filed separately from your tax return, through FinCEN’s BSA E-Filing System, with no paper option for most individuals.¹⁴ The deadline is April 15, automatically extended to October 15 with no request needed.¹⁵

Form 8938 (FATCA)

The Foreign Account Tax Compliance Act adds a separate requirement on Form 8938 for specified foreign financial assets, which include not only bank accounts but foreign stock and securities, interests in foreign entities, and certain foreign financial instruments.¹⁶ Form 8938 attaches to Form 1040.

The thresholds depend on where you live and how you file:¹⁷

Living in the US, single or filing separately: total asset value exceeds $50,000 on the last day of the tax year or $75,000 at any point during the year.
Living in the US, married filing jointly: $100,000 on the last day or $150,000 at any point.
Living abroad, single or filing separately: $200,000 on the last day or $300,000 at any point.
Living abroad, married filing jointly: $400,000 on the last day or $600,000 at any point.¹⁸

If you meet the threshold for both the FBAR and Form 8938, you file both. One does not substitute for the other.

Converting Foreign Currency

Every figure on your return must appear in US dollars. For income received in foreign currency, convert at the exchange rate on the date received, or use a yearly average rate for wages and other recurring payments. The IRS points filers to Treasury, the Federal Reserve, and the US Department of Agriculture as official rate sources.¹⁹ For the FBAR, use Treasury’s end-of-year rate.¹³ Pick a method, apply it consistently year over year, and save the rate documentation.

Forms and Deadlines

The pieces of a complete filing:

Form 2555 claims the foreign earned income exclusion and the foreign housing exclusion or deduction. Attach it to Form 1040.²⁰
Form 1116 claims the foreign tax credit. Attach it to Form 1040.
Form 8938 reports specified foreign financial assets above the FATCA thresholds. Attach it to Form 1040.
Form 8621 reports each PFIC you hold. Attach it to Form 1040.
FBAR (FinCEN Form 114) is filed separately through the BSA E-Filing System, not with your tax return.¹⁴

Most expat-oriented tax software handles Forms 2555 and 1116 electronically. If you mail a paper return with Form 2555, use the special international address in the Form 1040 instructions rather than the domestic address for your last state of residence.²⁰

Citizens and residents living abroad on April 15 get an automatic two-month filing extension to June 15, no form required.²¹ The extension is for filing only. Interest on unpaid tax still starts running April 15.²² You can request more time out to October 15 by filing Form 4868. The FBAR has its own April 15 due date, automatically extended to October 15.¹⁵

Penalties

The information-return penalties are what make this area unforgiving. Failing to file the FBAR carries a civil penalty up to $16,536 per violation for non-willful failures, inflation-adjusted from the original $10,000 statutory amount.²³ If the IRS finds the failure willful, the penalty rises to the greater of $100,000 (also inflation-adjusted) or 50% of the highest account balance in the year of violation. Criminal prosecution is possible in egregious cases.

Failing to file Form 8938 triggers a separate $10,000 penalty. If the form still is not filed 90 days after the IRS sends a notice, another $10,000 accrues for each 30-day period of continued non-compliance, up to $50,000 in additional penalties.²⁴ These sit on top of any accuracy-related penalties and interest on unpaid tax. Because the FBAR and Form 8938 are separate regimes, missing both on the same account produces two layers of penalties for one oversight.

Catching Up if You Are Behind

Two IRS programs exist for taxpayers who have fallen behind, and both close the moment the IRS opens an examination or investigation.

If your only lapse is missing FBARs and you already reported the income on your tax returns, the delinquent FBAR submission procedures let you file the late reports with a statement explaining why they are late. No penalty is imposed as long as you have not already been contacted about a civil examination or delinquent returns.²⁵

For larger lapses involving unreported income, the streamlined filing compliance procedures cover taxpayers whose failures were non-willful, meaning caused by negligence, misunderstanding, or honest mistake rather than deliberate concealment.²⁶ The program has two tracks:

Streamlined Foreign Offshore Procedures, for taxpayers living abroad, require three years of amended or delinquent returns and six years of delinquent FBARs. If you qualify, no failure-to-file, accuracy-related, or FBAR penalties apply.²⁷
Streamlined Domestic Offshore Procedures, for taxpayers living in the United States, require the same filings, plus a 5% penalty on the highest aggregate balance of undisclosed foreign accounts and assets across the covered period.²⁸

Neither track is available once the IRS has begun a civil examination or opened a criminal investigation.²⁶ With FATCA’s automatic information sharing between foreign banks and the IRS, that window can close without warning.

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