Tax Atlas

Portugal vs United States: tax comparison for expats & nomads

On income tax alone, United States comes out lower at a typical $100,000 income — but it depends on your income and regime. Here is the head-to-head on residency rules, rates, special regimes and nomad visas, each figure sourced.

Effective income tax by income

Gross annual incomePortugalUnited States
$50,00026.3%11.8%
$100,00035.6%16.9%
$200,00041.8%20.5%

Effective rate = total income tax ÷ gross income, run through each country’s full statutory scale (standard resident regime). Income tax only — excludes social security, deductions and sub-national taxes; cross-currency incomes use an indicative FX snapshot dated 2026-08-20. Try your own income and toggle special regimes →

Portugal vs United States, side by side

 PortugalUnited States
Top income tax rate48%PwC Worldwide Tax Summaries“varying between 12.50% and 48%, plus the solidarity tax rate, if applicable (in 2026).”View source · accessed 2026-08-0937%PwC Worldwide Tax Summaries“For individuals, the top federal income tax rate for 2025 is 37%, except for long-term capital gains and qualified dividends”View source · accessed 2026-08-20
Tax-residency day threshold183 daysPwC Worldwide Tax Summaries“Spends more than 183 days, consecutive or not, in Portugal in any 12-month period starting or ending in the fiscal year concerned.”View source · accessed 2026-08-09183 daysInternal Revenue Service (IRS)“You will be considered a United States resident for tax purposes if you meet the substantial presence test for the calendar year. To meet this test, you must be physically present in the United States (U.S.) on at least:”View source · accessed 2026-08-20
Signature tax regimeIFICI (NHR 2.0): 20%Global Citizen Solutions“Taxed at a flat 20% rate on net employment (Category A) or self-employment (Category B) income earned in qualifying activities.”View source · accessed 2026-08-09Foreign Earned Income Exclusion: USD 132,900 / yearInternal Revenue Service (IRS)“For tax year 2026, the foreign earned income exclusion is $132,900 up from $130,000 for tax year 2025.”View source · accessed 2026-08-20
Digital nomad visaYes — D8 Digital Nomad VisaGet Golden Visa“minimum €3,680 per month”View source · accessed 2026-08-09No
Nomad-visa income requirementEUR 3,680 / monthGet Golden Visa“minimum €3,680 per month ... 4 times the Portuguese minimum wage.”View source · accessed 2026-08-09—

Every figure links to its source and verification date. Full guides: Portugal · United States.

Frequently asked questions

Is Portugal or United States better for tax?

On income tax alone, United States has the lower effective rate at a $100,000 income (16.9% vs 35.6%). But the right answer depends on your income level, which special regime you qualify for, social security, and treaty relief — see the full comparison below.

Which has the lower tax-residency threshold, Portugal or United States?

Portugal treats you as tax resident after 183 days, and United States after 183 days. But ties like a home, family or economic centre can trigger residency on fewer days — never rely on a day count alone.

Does Portugal or United States have a digital nomad visa?

Portugal has a dedicated nomad/remote-work visa (income requirement around EUR 3,680 / month); United States has no dedicated digital-nomad visa. See the "Digital nomad visa" row below for the sourced detail.

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