Working Remotely for a US Company From Abroad: Tax, Legal, and Practical Realities

The United States is one of only two countries on earth that taxes its citizens on worldwide income regardless of where they live. The other is Eritrea. That single fact shapes everything about keeping your US salary while living in Lisbon, Mexico City, or Chiang Mai: your move abroad does not end your relationship with the IRS, and in some cases it does not even end your relationship with your home state's tax authority.

Consider a common scenario. A software engineer in San Francisco negotiates permanent remote work, gives up her apartment, and relocates to Portugal on a tourist entry, planning to "figure out the visa later." Eighteen months on she has three separate compliance problems she never anticipated: she is working without legal authorization in Portugal, she may still be a tax resident of California, and she has crossed a foreign-bank-account reporting threshold she did not know existed. None of this is exotic. It is the default outcome of leaving without a plan.

Here is what actually changes—and what stays the same—when you take a US job overseas.

You Still File a US Return, Wherever You Live

US citizens and green-card holders must file a federal tax return reporting worldwide income, even when they owe nothing and live full-time abroad. The filing thresholds are the same as for residents (tied to the standard deduction), and self-employed people must file once net self-employment earnings reach just $400 ([IRS, U.S. Citizens and Resident Aliens Abroad](https://www.irs.gov/individuals/international-taxpayers/us-citizens-and-resident-aliens-abroad)).

The one break the IRS gives expats is time. If your tax home and your physical location are both outside the United States on the regular due date, you receive an automatic two-month extension to **June 15** to file, and you can push the deadline to October 15 with Form 4868. Interest still accrues on any balance from the original April date, so the extension is for paperwork, not payment ([IRS, U.S. Citizens and Resident Aliens Abroad](https://www.irs.gov/individuals/international-taxpayers/us-citizens-and-resident-aliens-abroad)).

Most people who plan correctly owe little or no US tax. The reason is two separate tools designed to prevent the same dollar from being taxed twice—but they work very differently, and choosing the wrong one is a costly mistake.

The Two Tools That Stop Double Taxation

The Foreign Earned Income Exclusion (Form 2555)

The Foreign Earned Income Exclusion (FEIE) lets you exclude a capped amount of foreign-earned wages from US taxable income. The cap is inflation-adjusted each year: it is **$130,000 for tax year 2025 and rises to $132,900 for 2026** ([IRS, Figuring the Foreign Earned Income Exclusion](https://www.irs.gov/individuals/international-taxpayers/figuring-the-foreign-earned-income-exclusion); [Taxes for Expats, FEIE 2026](https://www.taxesforexpats.com/articles/tax-saving-strategies/foreign-earned-income-exclusion.html)).

You cannot simply claim it. You must qualify under one of two tests:

• **Physical Presence Test:** physically present in a foreign country for at least **330 full days** during any 12-month period. Days in international waters or airspace do not count, and a single misjudged trip home can break the count.
• **Bona Fide Residence Test:** established genuine residence in a foreign country for an uninterrupted period that includes a full tax year. This is judged on facts—residence permits, housing, intent—not a day count.

A critical limitation: because excluded income is, by definition, removed from your return, you cannot pair the FEIE with a foreign tax credit on those same dollars. The FEIE works best in low-tax or no-tax jurisdictions—the Gulf states, much of Southeast Asia—where there is little foreign tax to credit anyway.

The Foreign Tax Credit (Form 1116)

The Foreign Tax Credit (FTC) gives a dollar-for-dollar credit against your US tax bill for income taxes you actually paid to a foreign government. In a high-tax country—Germany, France, the UK, much of Scandinavia—local rates often already exceed your US liability, so the credit wipes out the US tax entirely and can even bank excess credits for future years ([IRS, Foreign Tax Credit](https://www.irs.gov/individuals/international-taxpayers/foreign-tax-credit); [Bright!Tax, FTC vs FEIE](https://brighttax.com/blog/foreign-tax-credit-vs-foreign-earned-income-exclusion/)).

The practical rule of thumb: **FEIE for low-tax countries, FTC for high-tax countries.** The FTC also preserves access to the refundable Child Tax Credit, which the FEIE can block. You can use both in the same year on *different* income, but never "double-dip" the same dollar. Because this choice has multi-year consequences (revoking a FEIE election locks you out for five years), it is the single decision most worth running past a cross-border accountant.

Your Bank Accounts Now Have to Be Reported

The surprise that catches many remote workers is not income tax—it is asset reporting. The moment you open a local account abroad to pay rent, you may trigger two separate disclosure regimes that route to two different agencies.

**FBAR (FinCEN Form 114).** If the aggregate value of all your foreign financial accounts exceeds **$10,000 at any single moment** during the calendar year, you must file an FBAR with the Treasury's Financial Crimes Enforcement Network through the BSA E-Filing System—separately from your tax return. Note the word *aggregate*: ten accounts holding $1,100 each cross the line. The deadline tracks Tax Day with an automatic extension to October 15 ([IRS, Comparison of Form 8938 and FBAR Requirements](https://www.irs.gov/businesses/comparison-of-form-8938-and-fbar-requirements)).

**FATCA (Form 8938).** This attaches to your federal return and has much higher thresholds for those living abroad—generally starting at **$200,000 in foreign financial assets on the last day of the year** (or $300,000 at any point) for single filers, with doubled thresholds for joint filers ([IRS, Comparison of Form 8938 and FBAR Requirements](https://www.irs.gov/businesses/comparison-of-form-8938-and-fbar-requirements)).

Many expats must file both. They overlap but are not interchangeable, and the penalties for ignoring the FBAR are severe—civil penalties can reach tens of thousands of dollars per non-willful violation. This is reporting, not taxation: filing the forms costs you nothing but time.

Self-Employment Tax and the Totalization Trap

If you are a W-2 employee of a US company, Social Security and Medicare are withheld as usual. But if you switch to contracting—a common move when an employer cannot legally keep you on payroll abroad—you become liable for the full **15.3% self-employment tax** on net earnings, on top of any social-insurance contributions your host country demands. Without relief, that is double social-security taxation.

The relief mechanism is a **Totalization Agreement**. The US has **30 of these agreements in force** as of 2025, with countries including Canada, the UK, Germany, France, Spain, Japan, South Korea, Australia, and most of Western Europe ([Social Security Administration, International Agreements](https://www.ssa.gov/international/agreements_overview.html)). An agreement assigns your coverage to one country—usually where you actually work—so you pay into only one system. You document the exemption with a *certificate of coverage* from the relevant authority.

The trap is the gap. If you are self-employed in a country *without* a totalization agreement—much of Latin America, Southeast Asia, and Africa—you generally owe the full US self-employment tax on worldwide net earnings *and* whatever the host country charges, with no offset ([H&R Block, Expat Self-Employment Tax](https://www.hrblock.com/expat-tax-preparation/resource-center/income/foreign/do-expats-pay-u-s-social-security-or-self-employment-tax-on-foreign-earned-income/)). Check the agreement list before you choose where to base yourself as a contractor.

The State You Left May Not Let Go

Federal rules are only half the picture. States tax on **domicile**—your true, fixed, permanent home—and you can have exactly one at a time. Leaving the country does not automatically change your domicile; you have to affirmatively establish a new one and sever ties with the old, and the burden of proof is entirely on you.

A handful of aggressive states—**California, New York, and Virginia**—are known for pursuing former residents abroad for years, taxing foreign salaries on the theory that the person never truly abandoned domicile ([Bright!Tax, California State Taxes for Expats](https://brighttax.com/blog/california-state-taxes-for-us-expats/)). California uses a facts-and-circumstances test rather than a bright line, but it will treat you as a resident if you spend 183 or more days there for non-temporary purposes, and it scrutinizes *why* you spent time in-state, not just how long.

There is some shelter. California offers a **safe harbor for residents abroad under an employment-related contract for at least 546 consecutive days**, which can break residency for qualifying workers ([Bright!Tax, California State Taxes for Expats](https://brighttax.com/blog/california-state-taxes-for-us-expats/)). The cleaner strategy, when feasible, is to establish residency in a no-income-tax state—Texas, Florida, Washington, Nevada—*before* leaving, with the lease, driver's license, and voter registration to prove it.

The Visa Problem Almost No One Mentions

Here is the gap between what feels true and what is legal: working remotely for a US employer while physically sitting in another country is, in most places, **still working in that country**—and a tourist entry does not authorize it. Tourist and visa-waiver entries generally prohibit any work, including remote work for a foreign company, and being caught can mean visa cancellation, fines, deportation, and multi-year entry bans ([Deel, Work Remotely Abroad Without Tax and Visa Mistakes](https://www.deel.com/blog/work-remotely-abroad-without-making-tax-and-visa-mistakes/)).

There is a second-order risk that lands on your employer. An employee working from a fixed location abroad can create a **permanent establishment**—a taxable corporate presence—that exposes the company to foreign corporate tax and payroll obligations it never signed up for ([Deel, Work Remotely Abroad](https://www.deel.com/blog/work-remotely-abroad-without-making-tax-and-visa-mistakes/)). This is precisely why many US companies quietly forbid long-term overseas work or insist on converting employees to contractors. If you have not told your employer where you actually are, you are creating a liability in their name.

The legitimate path is a **digital nomad visa**—now offered by more than 60 countries including Portugal, Spain, Croatia, Estonia, and Mexico—which grants temporary residence for people earning income from outside the host country. Requirements typically include proof of a minimum monthly income (often €2,500–€3,500), health insurance, and a clean background check. These visas are generally a better fit for contractors than for W-2 employees, and they do not always resolve the local-tax question, so read each program's tax provisions carefully ([Deel, Work Remotely Abroad](https://www.deel.com/blog/work-remotely-abroad-without-making-tax-and-visa-mistakes/)).

Practical Action Items

1. **Talk to your employer first.** Confirm in writing that they permit overseas work and understand the permanent-establishment risk. Do not assume silence is consent.
2. **Fix your visa before you go.** Match the country to a digital nomad visa or work-authorization route. Treat "figure it out later" as a decision to risk deportation.
3. **Re-domicile out of a high-tax state** if you can—ideally to a no-income-tax state—before departure, and keep the documentary trail (lease, license, voter registration).
4. **Pick your tax tool deliberately:** FEIE (Form 2555) for low-tax countries, Foreign Tax Credit (Form 1116) for high-tax ones. Model both before electing.
5. **Track your days.** The 330-day Physical Presence Test is unforgiving; log every border crossing.
6. **Inventory your foreign accounts.** If the aggregate ever tops $10,000, the FBAR is mandatory. Calendar the October 15 deadline.
7. **Check the totalization list** before contracting—especially if you'll work outside the 30 agreement countries.
8. **Hire a cross-border accountant for year one.** A few hundred dollars buys you the right FEIE-versus-FTC election and keeps you out of penalty territory.

Next Steps

The order matters: settle the visa and the state-residency question *before* you board the plane, because both are far harder to fix retroactively than a tax return is to file. Start by reading the IRS pages for [citizens abroad](https://www.irs.gov/individuals/international-taxpayers/us-citizens-and-resident-aliens-abroad) and the [Form 8938/FBAR comparison](https://www.irs.gov/businesses/comparison-of-form-8938-and-fbar-requirements), confirm whether your destination has a [totalization agreement](https://www.ssa.gov/international/agreements_overview.html), and book a consultation with an expat tax specialist before your first overseas filing season. Working abroad on a US salary is entirely achievable—but it is a compliance project, not a lifestyle decision you can make at the airport.