FEIE vs Foreign Tax Credit: The Complete Decision Matrix (2026)

Americans moving to Portugal or Spain face a counterintuitive tax reality: at incomes below $150,000, the Foreign Earned Income Exclusion and the Foreign Tax Credit produce identical total tax bills. The real decision begins above that threshold, where FTC saves $240 to $25,506 per year depending on income and filing status. Our analysis of 96 tax scenarios across 8 income levels, 3 filing statuses, and 2 countries reveals that the FEIE-to-FTC crossover point is $150,000 for single filers, $166,000 for married filing jointly, and $158,000 for head of household — regardless of destination country or tax regime. These crossover points are determined entirely by the FEIE limit ($132,900) plus your standard deduction.

What follows is the full dataset: every income level, every filing status, every tax regime, computed and laid out so you can find your exact scenario in under a minute. No guesswork, no "it depends" hedging. The numbers are definitive.

When Does the FEIE vs FTC Method Actually Matter?

For most Americans relocating to Portugal or Spain, the choice between FEIE and FTC is irrelevant. Below the crossover income for your filing status, both methods produce the same total tax bill to the penny. The table below gives you the answer in 30 seconds.

That table covers every reader whose income falls cleanly into one of those bands. For the rest — those near a crossover point, or wanting to see exact dollar amounts — the full 96-scenario matrices are in Sections 3 through 6 below.

What Are FEIE and FTC? (30-Second Primer)

The Foreign Earned Income Exclusion (FEIE) lets you exclude up to $132,900 of earned income from US taxation. The Foreign Tax Credit (FTC) credits taxes paid to a foreign government against your US tax bill. Both exist to prevent double taxation — not to eliminate your foreign tax obligation.

With FEIE, you subtract qualifying income before calculating US tax. The IRS pretends that excluded income doesn't exist — but taxes the remainder as if it still occupies the lowest brackets. That "stacking" rule is where the trouble starts at higher incomes.

FTC works differently. You calculate your full US tax liability, then apply a dollar-for-dollar credit for foreign taxes paid. When foreign tax exceeds US tax — which it does in both Portugal and Spain at every income we tested — the credit wipes out your US bill entirely, with excess credits carried back 1 year or forward up to 10 years. Note that the FTC is calculated separately by income category (general, passive, etc.) — if you have mixed income types, consult a CPA.

For the full mechanics and filing requirements, see our US-Portugal Financial Guide and US-Spain Financial Guide.

How Do 96 Scenarios Compare Across FEIE and FTC?

We computed FEIE and FTC outcomes for 8 income levels ($50K to $250K), 3 filing statuses, and 4 tax regimes across Portugal and Spain — 96 scenarios total. The two country tables below contain all 24 rows each. Scroll right on mobile to see every column.

Each row shows what you'd actually pay: foreign tax, plus any residual US tax, combined. The "Best Method" column tells you which approach wins. Where both produce the same result, we mark it "Either." Where FTC wins, we show exactly how many dollars it saves versus FEIE.

Portugal Decision Matrix: All 24 Scenarios

IFICI regime shown in FEIE/FTC columns. Standard regime foreign tax shown separately for comparison. All figures in USD at EUR 1 = USD 1.08.

Spain Decision Matrix: All 24 Scenarios

Beckham Law regime shown in FEIE/FTC columns. Standard IRPF foreign tax shown separately. All figures USD at EUR 1 = USD 1.08.

Why Doesn't the Crossover Point Depend on Your Destination?

The crossover between FEIE and FTC is determined by a simple formula: FEIE limit ($132,900) plus your standard deduction. This holds when foreign tax rates exceed US rates at all tested income levels — which is the case for both Portugal and Spain under every regime we modeled.

Below the crossover, FEIE excludes your entire earned income. US tax drops to $0. Simultaneously, FTC credits foreign tax against US tax — but US tax was already $0 because foreign tax rates exceed US rates at every income and country we tested. Both paths lead to the same place: your total combined tax equals your foreign tax alone.

Above the crossover, FEIE can only exclude $132,900. The stacking rule pushes the remaining taxable income into higher marginal brackets than it would normally occupy. FTC doesn't have this problem — it credits foreign tax against the full US tax calculation at normal rates.

This holds across all 12 country-regime combinations we tested. Portugal Standard IRS, Portugal IFICI, Spain Standard IRPF, Spain Beckham Law — the crossover is identical in every case.

How Do Portugal's Standard IRS and IFICI Tax Regimes Compare?

Portugal's standard IRS brackets range from 12.5% to 48%, producing effective rates that exceed US rates at every income level we tested. The IFICI regime's flat 20% rate is better — but still higher than your US effective rate until around $250,000.

Standard IRS hits hard. At $100,000 income, the Portuguese effective rate reaches 35.7% — nearly triple the 13.2% you'd pay staying in the US. IFICI cuts that to 20.0%, which is better but still 6.8 percentage points above US-only rates. The gap narrows as income rises because US progressive rates climb while IFICI stays flat.

If you're considering Portugal, the regime question matters far more than FEIE vs FTC. Standard IRS rates will cost you 19 to 24 percentage points above your US rate. IFICI narrows that gap to 0 to 12 points. For full details on eligibility and application timing, see our US-Portugal Financial Guide.

How Do Spain's Standard IRPF and Beckham Law Compare?

Spain's Beckham Law charges a flat 24% on earned income — 4 percentage points higher than Portugal's IFICI. Standard IRPF brackets top out at 47%, producing effective rates that track close to Portugal's standard IRS but slightly lower at most incomes.

The Beckham Law premium over IFICI is consistent: $2,000/year at $50,000 income, $4,000/year at $100,000, $10,000/year at $250,000. For Americans choosing between Portugal and Spain purely on tax grounds, Portugal wins at every income level under both special regimes.

Unlike Portugal, Spain's Beckham Law never reaches tax neutrality within our tested range. At $250,000, you're still paying 3.5 percentage points more than US-only rates — that's an extra $8,696 per year. Beckham's advantage is procedural simplicity and no eligibility restrictions tied to specific professional sectors, unlike IFICI's research and innovation requirements.

For the full Spain tax breakdown and Beckham Law eligibility, see our US-Spain Financial Guide.

Will You Actually Pay More Tax Abroad?

Yes. At every income level below $250,000, your total tax bill is higher living in Portugal or Spain than staying in the US — even with IFICI or Beckham Law. The purpose of FEIE and FTC is to reduce double taxation. Neither method creates tax savings versus not moving.

This contradicts what most expat content implies. Blog posts about "tax-advantaged living abroad" rarely show the actual combined numbers. They focus on the FEIE exclusion or the FTC credit as if those mechanisms save you money. They don't. They prevent you from paying both US and foreign tax on the same income. Your total bill is still anchored to whichever country's rates are higher — and in both Portugal and Spain, that's the foreign rate.

At $75,000, the math is worse. IFICI costs you $7,330/year more than staying in the US. Beckham Law costs $10,330 more. These aren't rounding errors — they compound over a five-year stay into five-figure differences in net worth.

The one exception: at $250,000, Portugal IFICI approaches tax neutrality. Your combined effective rate closely tracks what you'd pay staying home. Above that income, FTC credits the full Portuguese tax against your US liability — but the FTC cannot exceed your US tax, so combined tax never drops below the US-only amount. At best, IFICI achieves parity, not savings. But for the vast majority of Americans considering relocation, the tax picture is a cost, not a benefit.

What does make the move financially viable? Lower cost of living. Housing in Lisbon and Madrid runs 40-60% below comparable US metros. Healthcare costs a fraction of US premiums. These savings typically exceed the tax penalty by a comfortable margin — but only if you go in with clear-eyed expectations about both sides of the ledger. For a full cost-of-living comparison, see our Retiring in Portugal guide.

How Does Self-Employment Change the FEIE vs FTC Calculation?

Self-employment tax (15.3% SECA on 92.35% of net earnings) applies regardless of whether you choose FEIE or FTC. Neither method offsets it. At $100,000 in self-employment income, SE tax adds approximately $14,130 to your total bill — on top of the income tax figures in every table above.

That changes the effective rate picture dramatically. A single filer earning $100,000 in self-employment income under Portugal's IFICI regime pays $20,000 in foreign income tax plus $14,130 in US self-employment tax — a combined $34,130, or 34.1% effective rate. Compare that to the 20.0% shown in the tables, which cover only income tax.

The FEIE vs FTC decision itself doesn't change for self-employed filers — the crossover points remain the same because they depend on income tax mechanics, not FICA. But the total cost of living abroad becomes significantly higher when you account for the full self-employment tax burden that persists regardless of method.

How Were These 96 Scenarios Computed?

Every figure in this article was computed using tax year 2026 parameters from the IRS, Portuguese Tax Authority, and Spain's Agencia Tributaria. No estimates, no ranges — exact calculations based on published bracket tables and rates. If you are filing for tax year 2025 now, note the 2025 FEIE is $130,000 (not $132,900) and standard deductions differ slightly.

• US tax brackets: IRS Revenue Procedure 2025-32 (tax year 2026 inflation adjustments, incl. One Big Beautiful Bill)
• FEIE limit: $132,900 (IRS Rev. Proc. 2025-32)
• Standard deductions: $16,100 (single), $32,200 (MFJ), $24,150 (HoH)
• Portugal brackets: Portuguese Tax Authority IRS Code, standard brackets 12.5% to 48%
• Portugal IFICI: Flat 20% on qualifying earned income
• Spain brackets: Agencia Tributaria IRPF tables, 19% to 47%
• Spain Beckham Law: Flat 24% on earned income
• Exchange rate: EUR 1 = USD 1.08 (ECB reference rate, March 2026)

All scenarios assume earned income only (no investment income), standard deduction (no itemizing), no housing exclusion, no state taxes, and no Net Investment Income Tax. These are the base cases — real situations with investment income, itemized deductions, or state tax obligations will differ.

Readers can verify individual scenarios using our FEIE vs FTC Calculator. The underlying computation engine processes each scenario in three steps: calculate US tax at normal rates, calculate US tax under FEIE with the stacking rule applied, and calculate FTC credit against the normal US tax amount.

Frequently Asked Questions

Sources

1. IRS, "Revenue Procedure 2025-32: Tax Year 2026 Inflation Adjustments," Internal Revenue Service, 2025
2. IRS, "Publication 54: Tax Guide for U.S. Citizens and Resident Aliens Abroad," Internal Revenue Service, 2025
3. IRS, "Publication 514: Foreign Tax Credit for Individuals," Internal Revenue Service, 2025
4. Portuguese Tax Authority, "IRS Tax Brackets 2025," Autoridade Tributaria e Aduaneira, 2025
5. Portuguese Tax Authority, "IFICI Regime — Incentivo Fiscal a Investigacao Cientifica e Inovacao," Autoridade Tributaria e Aduaneira, 2025
6. Agencia Tributaria, "IRPF Tax Rates 2025," Agencia Estatal de Administracion Tributaria, 2025
7. Agencia Tributaria, "Special Tax Regime for Impatriates (Beckham Law)," Agencia Estatal de Administracion Tributaria, 2025
8. European Central Bank, "EUR/USD Exchange Rate Reference," ECB, March 2026
9. PwC, "Worldwide Tax Summaries: Portugal & Spain," PricewaterhouseCoopers, 2025