The American abroad: how US citizens legally cut their tax in 2026

The one fact that changes everything

The United States is one of only two countries on earth that taxes its citizens on their worldwide income regardless of where they live, alongside Eritrea. Move to Lisbon, Dubai or Singapore and you still file a US return, still report worldwide income, and still potentially owe the IRS. This is citizenship-based taxation, and it is the starting point for every decision an American makes offshore.

That does not mean you are stuck paying full US rates. Congress built several mechanisms to prevent Americans abroad from being taxed twice, and a handful of them can cut a US bill to zero if you qualify. But each has strict rules, and the wrong assumption here is expensive. This guide walks through them in order of impact, using the actual 2025 figures the IRS has published.

Tool 1: the Foreign Earned Income Exclusion (FEIE)

The FEIE is the headline benefit. It lets a qualifying American exclude foreign wages and self-employment income from US taxable income up to an inflation-adjusted cap. For tax year 2025 that cap is $130,000 per person, per the IRS Form 2555 instructions. A married couple who both work abroad and both qualify can exclude up to $260,000 combined.

To claim it you must have a tax home in a foreign country and pass one of two tests:

• Physical presence test: physically present in a foreign country for at least 330 full days during any 12 consecutive months. This is a pure day-count and is the easier test for nomads and recent movers.
• Bona fide residence test: a bona fide resident of a foreign country for an uninterrupted period that includes an entire tax year. This suits people who have genuinely settled somewhere and can show it.

Two limits catch people out. First, the FEIE covers earned income only: salary, wages, self-employment profit. It does nothing for dividends, interest, capital gains, rental income or pension income. Second, and this is the big one, the exclusion reduces your income tax but not your self-employment tax. If you run your own business abroad, the IRS is explicit that you owe US self-employment tax (15.3%) on your full net profit even when every dollar is excluded under the FEIE, unless a totalization agreement puts you into a foreign social-security system instead.

Tool 2: the foreign housing exclusion

Stacked on top of the FEIE is the foreign housing exclusion, which lets you exclude a slice of employer-provided housing costs above a base amount. The standard limit for 2025 is $39,000 (30% of the $130,000 FEIE cap), or $106.85 per day for a partial year, per the Form 2555 instructions. High-cost cities such as Hong Kong, Singapore, London and Dubai carry far higher limits, which the IRS updates each year in a separate notice (Notice 2025-16 for 2025). For a well-paid expat in an expensive posting, this can lift the total shielded income well above the raw FEIE figure.

Tool 3: the Foreign Tax Credit (FTC)

If you live somewhere that already taxes you, such as Germany, France, Canada or Australia, the foreign tax credit is often more powerful than the FEIE. Filed on Form 1116, it gives you a dollar-for-dollar credit against your US tax for foreign income taxes you actually paid. Because a credit reduces tax owed rather than income, it is almost always worth more than deducting the same taxes.

The FTC has one hard rule that decides your whole strategy: you cannot claim a credit for foreign taxes on income you already excluded under the FEIE. You choose. In a high-tax country the FTC frequently wipes out your US liability on its own and preserves benefits the FEIE would forfeit, such as the ability to contribute to an IRA or claim the refundable child tax credit. In a zero-tax country like the UAE there are no foreign taxes to credit, so the FEIE is your tool. Many people in mid-tax countries model both before choosing.

How the three stack up

The Puerto Rico play: Act 60

Puerto Rico is the one place a US citizen can radically cut tax without leaving US jurisdiction, because income sourced to Puerto Rico by a bona fide resident is excluded from US federal tax under Internal Revenue Code section 933. Puerto Rico's own Act 60 (which consolidated the former Act 22 for individuals and Act 20 for businesses) then layers on local incentives: a 0% Puerto Rico rate on capital gains that accrue after you become a resident, and a 4% corporate rate for qualifying export-services businesses.

The gatekeeper is bona fide residency, and the IRS applies three tests under Publication 570: you must be present in Puerto Rico for at least 183 days in the tax year, have no tax home outside Puerto Rico, and have no closer connection to the US or a foreign country than to Puerto Rico. This means an actual move, not a mailing address.

Two limits are non-negotiable. Act 60 does not touch gains that built up while you lived in the mainland US; those remain taxable by the IRS on their pre-move appreciation. And it does nothing for foreign-source income from outside Puerto Rico. It is a targeted tool for people whose wealth is in appreciating assets or an exportable business, and who are willing to genuinely relocate to the island.

The nuclear option: the exit tax and renouncing

Some Americans conclude the only way off the citizenship-based-taxation treadmill is to leave it entirely by renouncing citizenship. Before doing so you must understand the exit tax, filed on Form 8854. It applies to anyone who is a covered expatriate on the day they renounce.

For 2025 you are a covered expatriate if you meet any one of three tests, per the IRS Form 8854 instructions:

• Your average annual net income tax for the five years before expatriation exceeds $206,000 (the 2025 figure, adjusted yearly).
• Your net worth is $2 million or more on the expatriation date.
• You fail to certify five years of full US tax compliance on Form 8854.

A covered expatriate is treated as if they sold all their worldwide assets at fair market value the day before renouncing, and pays tax on the deemed gain. For 2025 the first $890,000 of that net gain is excluded; gain above it is taxed. Retirement accounts and certain deferred items are handled under separate rules. Renouncing is irreversible, requires a formal consular process and a fee, and does not erase tax already owed. It makes sense for a narrow set of people and is a last resort, not a planning shortcut.

Best countries for Americans in 2026

For most Americans the winning move is not renouncing; it is choosing a base where the FEIE or FTC does the heavy lifting and life is good. Two broad profiles work:

• Zero- or low-tax hubs such as the UAE, where you pair the FEIE on earned income with no local income tax. See our roundup of countries with no income tax and territorial-tax countries that only tax local-source income.
• High-tax but high-quality countries such as Portugal, Spain or France, where the foreign tax credit typically neutralises your US bill and you get healthcare and lifestyle in return.
• Puerto Rico, uniquely, for investors and business owners who can meet bona fide residency.

Whichever route you take, establishing genuine tax residency somewhere is the foundation. Our guide on how to establish tax residency abroad covers the day-counts and documentation that make your position defensible.

How Expectat helps you get there

Your US tax position abroad is a set of trade-offs, not a single answer: FEIE versus foreign tax credit, high-tax country versus zero-tax hub, staying a citizen versus the exit tax. Get the sequence wrong and you either overpay or trip a compliance wire. We start from your actual numbers, not a template.

• We map your situation and run the numbers: income type, current residency, and which of the FEIE, foreign tax credit or a Puerto Rico move produces the lowest defensible US bill.
• We model the specific move, including FEIE-versus-FTC outcomes by country, Act 60 grant timing, and whether the exit tax ever makes sense for you.
• We execute on the ground with vetted local partners for residency, banking and filing, so the plan survives contact with reality.

If you want a clear read on where you stand and what to do next, Book a strategy call.