Foreign vs. U.S. Source Income for Expats Explained: What Qualifies for the FEIE
The IRS determines whether your income is “foreign earned” or “U.S. source” based on one rule: where you physically perform the work, not who pays you or where your employer is based. If you work in London for a U.S. company, that’s foreign earned income. If you work in New York for a German company, that’s U.S. source income.
This distinction matters because the Foreign Earned Income Exclusion (FEIE) applies only to foreign earned income. According to the IRS, the FEIE allows you to exclude up to $130,000 (2025 tax year) or $132,900 (2026) from U.S. taxation if you meet the Physical Presence Test or Bona Fide Residence Test. Classify your income wrong, and you’ll either miss a legitimate exclusion or claim one you don’t qualify for. The quick version:
- Foreign earned income (FEIE eligible): Salary, wages, freelance fees, and self-employment income for work physically performed outside the U.S.
- U.S. source income (not FEIE eligible): Income from work performed inside the U.S., regardless of who pays you
- Passive income (never FEIE eligible): Dividends, interest, rental income, capital gains, and pensions, regardless of where they come from. Use the Foreign Tax Credit instead.
Qualify for the FEIE With Confidence
Here’s how to classify every common income type, with examples for employees, freelancers, and business owners.
The Core Rule: Location of Work Determines Income Source
The most common misconception among expats: “My U.S. employer pays me, so it must be U.S. source income.” That’s wrong. The IRS doesn’t care who signs your paycheck or where your employer is headquartered. It cares about where you were sitting when you did the work.
| Scenario | Income Source | FEIE Eligible? |
|---|---|---|
| Work in London for a U.S. company | Foreign earned | Yes |
| Work in California for a German company | U.S. source | No |
| Work remotely from Spain for a U.S. startup | Foreign earned | Yes |
| Work 9 months abroad, 3 months at U.S. home office | Split (must prorate) | Partially |
Why this matters for your tax bill: Correctly classifying your income as foreign earned can save you up to $30,000+ in federal income tax (depending on your bracket and the full $130,000 exclusion). Misclassifying it can trigger an audit or cost you thousands in taxes you didn’t need to pay. For a detailed comparison of the FEIE vs. the Foreign Tax Credit, see our guide on choosing the right strategy.
How W-2 Employees Classify Their Income
If you’re a salaried employee receiving a W-2, your income source follows the physical location rule:
Corporate expat in Singapore: Marcus works in his company’s Singapore office for a U.S. tech firm. His U.S. headquarters processes payroll and deposits his salary into a U.S. bank account. All of his salary is foreign-earned income and FEIE-eligible because he physically works in Singapore.
Remote worker in Barcelona: Jennifer lives in Spain and works remotely for a U.S. startup with no Spanish office. All meetings happen over video. Her salary is foreign-earned income because she performs the work from Spain.
Split-year situation: Alex works 9 months in his company’s London office and 3 months at the U.S. headquarters. He must prorate: 75% of his salary is foreign-earned (FEIE-eligible), and 25% is U.S.-source (fully taxable). He cannot claim the FEIE on the U.S. portion.
Income Types That Require Special Treatment
- Stock options and RSUs: Classification depends on where you worked during the period between the grant and vesting dates. If you were abroad for part of that period and in the U.S. for part, the income is allocated proportionally. This is one of the most complex areas of expat tax and is frequently subject to IRS scrutiny.
- Bonuses: Source depends on where you performed the services that earned the bonus, not when or where you receive the payment. A year-end bonus for work performed entirely in London is foreign earned income, even if it’s paid after you return to the U.S.
- U.S. work trips: Days spent working in the U.S. generate U.S. source income. If you fly back for a two-week project at headquarters, that portion of your salary must be treated as U.S. source income.
How Freelancers and Self-Employed Expats Classify Their Income
Self-employment income follows the same location-of-work rule. Where your clients are located doesn’t matter. Where you physically do the work does.
- Freelance developer in Portugal: Tom lives in Lisbon and builds websites for U.S., Canadian, and European clients. He invoices through a U.S. LLC. All of his income is foreign earned because he works from Portugal. FEIE eligible.
- Online coach in Thailand: Lisa delivers coaching sessions via Zoom from Bangkok to U.S.-based clients. Paid via PayPal to a U.S. account. Foreign earned income because she physically works from Thailand. FEIE eligible.
- Digital nomad across 8 countries: David writes from a different country every month. As long as all work is performed outside the U.S. and he meets the Physical Presence Test (330 days abroad), all his income is foreign earned.
The FEIE only eliminates federal income tax on your self-employment income. You still owe self-employment tax (15.3%) on the full amount. However, if your country has a totalization agreement with the U.S. and you’re paying into the local social security system, you may be exempt from U.S. self-employment tax entirely.
How Business Owners Classify Their Income
If you own a foreign corporation or partnership, different income streams from the same business may be classified differently:
- Salary from your foreign company: Foreign earned income (FEIE eligible). You’re performing services abroad.
- Dividends from your foreign company: Foreign source passive income. Not FEIE eligible. Use the Foreign Tax Credit instead.
- GILTI and Subpart F income: These are taxable inclusions from your foreign corporation that flow to your U.S. return even without a distribution. Not FEIE eligible. Reported through Form 5471.
- Product-based businesses: If you produce goods abroad and sell them, the production location determines source. A furniture maker in Mexico producing and shipping to U.S. customers earns foreign source income. An Amazon FBA seller buying from China and selling via U.S. warehouses has mixed-source income that requires allocation.
Why Passive Income Is Never FEIE Eligible
The FEIE applies only to income you earn by working. Passive income, no matter where it comes from, cannot be excluded. Use the Foreign Tax Credit (Form 1116) instead.
| Passive Income Type | Source Rule | FEIE? | Best Strategy |
|---|---|---|---|
| Rental income | Location of the property | No | FTC for foreign property; fully taxable for U.S. property |
| Dividends | Where the corporation is incorporated | No | FTC for foreign dividends |
| Interest | Where the bank/payer is located | No | FTC for foreign bank interest |
| Capital gains (stocks) | Your tax home location | No | FTC if foreign taxes paid |
| Capital gains (real estate) | Location of the property | No | FTC for foreign property sales |
| U.S. Social Security | Always U.S. source | No | May be partially tax-free |
| Pensions | Where you worked to earn them | No | FTC or treaty benefits |
For more on how earned and unearned income are taxed differently, see our guide on earned vs. unearned income.
For reporting foreign rental income specifically, see our guide on foreign rental income tax.
Common Classification Mistakes That Trigger Audits
- Assuming U.S. employer = U.S. source: Your employer’s location doesn’t determine source. Your physical work location does. A salary from Google paid to a U.S. bank account is foreign earned income if you work from the company’s London office.
- Trying to exclude passive income with the FEIE: Rental income, dividends, and interest are never FEIE eligible, regardless of where they originate. Use the Foreign Tax Credit for foreign-source passive income.
- Not prorating for U.S. work trips: If you spend any days working in the U.S., that portion of your income is U.S. source. You must allocate based on days worked in each location.
- Forgetting about self-employment tax: Excluding $100,000 of freelance income through the FEIE eliminates your income tax, but you still owe ~$14,130 in self-employment tax. Many expats are surprised by this bill. Check whether a totalization agreement can help.
- Misclassifying business income by client location: Your U.S.-based clients don’t make your income U.S. source. A freelancer in Thailand working for American clients earns foreign income.
How Greenback Classifies Your Income and Builds Your Tax Strategy
Income classification is the foundation of your entire expat tax return. Every exclusion, credit, and form flows from whether each income source is correctly categorized. Our CPAs and Enrolled Agents handle this by:
- Analyzing every income source you have: Salary, freelance income, rental properties, dividends, stock compensation, pensions, and business distributions. We classify each one and determine the right tax treatment.
- Choosing the optimal strategy for each source: Foreign earned income gets the FEIE (or FTC, depending on which saves you more). Foreign passive income gets the FTC. U.S. source income is reported and taxed normally. We model FEIE vs. FTC scenarios to find the combination that minimizes your total liability.
- Handling the complex cases: RSUs that vested across multiple countries, split-year situations, product businesses with mixed sourcing, foreign corporations with salary and dividend streams. These are the cases where classification errors are most costly and most common.
- Filing everything correctly: Form 2555 for the FEIE, Form 1116 for the FTC, Schedule C and Schedule SE for self-employment, and Form 5471 for foreign corporations. We complete all required forms and attach them to your Form 1040.
Frequently Asked Questions
Yes. If you physically perform your work from a foreign country, your income is foreign earned regardless of who employs you, where the company is headquartered, or where your paycheck is deposited. A software engineer working from Berlin for a San Francisco startup earns foreign income.
No. The FEIE applies only to earned income (wages, salary, self-employment income for services performed). Rental income is passive income and is never eligible for FEIE, even if the property is in a foreign country. Use the Foreign Tax Credit to offset U.S. tax with any foreign taxes paid on the rental income.
You must prorate. Income from days you physically worked in the U.S. is U.S.-source (not FEIE-eligible). Income from days you worked abroad is foreign earned (FEIE eligible). The allocation is based on the number of workdays at each location. If you spent 60 workdays in the U.S. and 200 workdays abroad, approximately 77% of your salary is foreign-earned.
No. Income source is determined by where you perform the work, not where your clients are. A freelance designer in Mexico working for clients in New York, Chicago, and Los Angeles earns foreign income because the work is performed in Mexico. All of it is FEIE eligible.
Your Next Steps
Start by listing every income source you have: salary, freelance income, rental properties, investments, pensions, and any business distributions. For each one, determine where the work was performed (for earned income) or where the asset is located (for passive income). That classification drives your entire tax strategy.
If you have multiple income types or complex situations like RSUs, split-year employment, or a foreign business, getting the classification right is worth professional help. One mistake can cost thousands in unnecessary taxes or trigger IRS scrutiny.
Contact us, and one of our Customer Champions will be happy to help. If you’re ready to be matched with a Greenback accountant, get started here.
Get Expert Help With FEIE and Income Classification
This article is for informational purposes only and does not constitute tax, legal, or accounting advice. Income classification rules are complex and depend on your specific situation. For advice related to your circumstances, consult with a qualified tax professional.
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