If you’re a US citizen earning income while living abroad, you’ve probably heard about the Foreign Earned Income Exclusion (FEIE) and the Foreign Tax Credit (FTC). Both exist to prevent double taxation — but they work in fundamentally different ways and produce different results depending on your specific situation. The wrong choice can cost you thousands per year. Here’s how to think about which one applies to you.
FEIE in one paragraph
The Foreign Earned Income Exclusion (Form 2555) lets you exclude up to a per-year limit of foreign earned income from US taxation entirely. For 2026 the limit is around $130,000 (it adjusts for inflation annually). To qualify you need to meet either the bona fide residence test or the physical presence test (330 days outside the US in a 12-month period). Excluded income disappears from your US tax return — you owe zero US tax on it.
FTC in one paragraph
The Foreign Tax Credit (Form 1116) lets you claim a dollar-for-dollar credit against your US tax bill for income taxes you paid to a foreign country. It’s not a deduction — it’s a credit. If you owed $20,000 in US tax and paid $15,000 in foreign taxes on the same income, you can credit the $15,000 against the $20,000 and only owe $5,000 to the IRS.
Where the two paths diverge
Here’s the headline difference: FEIE works best when your foreign country has LOW or ZERO tax on your income. FTC works best when your foreign country has HIGH tax on your income (higher than US rates).
Examples:
- UAE / Bahrain / Cayman: 0% personal income tax. FEIE wins easily — you exclude up to the limit, owe zero US tax on excluded portion, and there’s no foreign tax to credit.
- Spain / France / Belgium / Germany: Often 30-45% effective tax on professional income. FTC typically wins — you usually pay enough foreign tax to fully offset US tax owed.
- Portugal / Italy with special regimes: Depends on whether the regime applies. Worth modeling both ways.
The interaction nobody warns you about
You can use FEIE for SOME of your income and FTC for the REST. But once you elect FEIE for a tax year, you’re stuck with it for that year — you can’t undo the election partway through. And revoking FEIE in a future year typically requires waiting 5 years before you can elect it again (without IRS approval).
This means: don’t elect FEIE early in your expat life without modeling whether FTC might serve you better as your situation evolves.
The capital gains and passive income wrinkle
FEIE only applies to EARNED income — wages, salary, freelance income from services. It does NOT apply to:
- Capital gains
- Dividends
- Interest
- Rental income
- Pension distributions (mostly)
For these, you’re using FTC by default (or eating the double tax). This is why high-net-worth expats with significant investment income usually end up using FTC even if their wages would qualify for FEIE.
The Self-Employment tax trap
FEIE excludes income from regular income tax, but it does NOT exclude income from self-employment tax (Social Security + Medicare). If you’re a freelancer or sole proprietor, your foreign-earned income is still subject to ~15.3% SE tax even if FEIE wipes out your regular income tax owed. Some countries have totalization agreements with the US that let you avoid this. Most don’t.
How to actually decide
For most cases, the answer comes from running the math both ways. The decision depends on:
- Your foreign country’s effective tax rate on your specific income
- Your income mix (earned vs passive)
- Your total income vs the FEIE annual limit
- Whether you’ll be in the US enough to fail the physical presence test
- Whether your situation will change in the next 5 years (the FEIE election lock-in)
Bottom line
FEIE is simpler to understand but only optimal in low-tax countries. FTC is more flexible and covers all income types. Most professional expats in high-tax countries are better off with FTC. Most digital nomads bouncing through low-tax jurisdictions are better off with FEIE. The wrong call can cost you thousands per year and lock you into a 5-year repeat consequence. Run the math both ways before filing your first expat return — and reconsider every few years as your situation evolves.