Expatriate

An expatriate is a person who lives outside their country of citizenship. In US tax usage the word describes a US citizen or lawful permanent resident who resides abroad and therefore carries US tax and reporting obligations while living in another country. It is worth separating from a similar-sounding term at the outset: an expatriate in this sense has not given up US citizenship. Someone who formally renounces citizenship is said to "expatriate" in a narrower legal sense and may face the expatriation tax, which is a different subject. This page is about the ordinary situation of an American living overseas who remains a citizen.

The defining feature of that situation is that moving abroad does not end the US tax relationship. Under citizenship-based taxation the United States taxes its citizens on worldwide income wherever they live, so an expatriate files a US return every year in addition to whatever the country of residence requires. The rest of the picture, the exclusions, credits, treaties, and reports, is the machinery built around that single fact.

Think of an American abroad as having two jobs each year: reduce the tax, and file the reports. They are separate, and the reports do not depend on owing tax. Nearly every problem an expatriate runs into is a failure to see that the reporting obligations stand on their own.

Reducing the tax runs through three tools. The foreign earned income exclusion lets a qualifying person leave a capped amount of foreign wages or self-employment income out of US gross income, and qualification depends on meeting either the bona fide residence test or the physical presence test. The foreign tax credit offsets US tax dollar for dollar with income tax already paid to the country of residence, and it reaches investment income and other categories the exclusion does not. Income tax treaties, where one exists, reassign taxing rights and cut withholding, though a treaty's saving clause limits how much it helps a US citizen specifically. In a high-tax country the credit alone often erases the US tax; in a low-tax or no-tax country the exclusion does most of the work.

The reports are the other job, and the one people miss. An expatriate with foreign bank or brokerage accounts must file the FBAR when the accounts' combined value tops $10,000 at any point in the year, filed with the Financial Crimes Enforcement Network rather than with the return. Separately, under the Foreign Account Tax Compliance Act, larger foreign holdings must be reported on Form 8938 with the return itself, at thresholds that are higher for people living abroad than for those in the United States. Many expatriates file both. A further trap sits inside ordinary investing: buying a foreign mutual fund or ETF usually means owning a passive foreign investment company, which carries a punitive tax and its own annual form, so US persons abroad generally hold US-domiciled funds instead.

Deadlines shift in the filer's favor, but interest does not. A taxpayer whose tax home and abode are outside the United States gets an automatic two-month extension to June 15 with no form required, and can extend further to October as anyone can. That extension moves the filing date and, for those abroad, the payment date, but interest on any unpaid tax still runs from the ordinary April deadline, so the extension is not a grace period on interest.

State ties can outlast the move. Federal citizenship-based taxation is only half the picture. Several states are aggressive about continuing to treat a former resident as a resident until the person has genuinely severed ties, so an expatriate who keeps a home, a driver's license, or voter registration in such a state may still face a state return. State residency turns on state law, not on the federal rules for living abroad.

A typical year for an American abroad runs in this order: determine worldwide income for the US return, apply the exclusion and the credit to cut the US tax, then file the separate foreign-account and foreign-asset reports if the thresholds are met, using the June 15 automatic extension if needed.

A hypothetical example. Amara is a US citizen who moves to Australia and earns the equivalent of $150,000, paying Australian income tax on it. On her US return she reports the full $150,000. She excludes up to $132,900 under the foreign earned income exclusion, and for the wages above the exclusion she claims a foreign tax credit for the Australian tax already paid. Because Australian rates exceed US rates on that band, the credit removes the remaining US tax, and her US tax on the salary is zero. Separately, her Australian checking and superannuation-linked accounts exceed $10,000 combined, so she files an FBAR, and because her total foreign financial assets cross the higher abroad threshold she also files Form 8938 with her return. She files by the June 15 automatic deadline. She owes the United States nothing and is compliant only because she both filed and reported.

Being a US expatriate is a status rather than a strategy, so the useful framing is what makes it manageable and where the pitfalls are.

What works in the expatriate's favor

• The foreign earned income exclusion and the foreign tax credit together eliminate US tax on wages for most expatriates, especially in higher-tax countries.
• The automatic June 15 filing extension is granted without any form for those whose tax home is abroad.
• Holding US-domiciled funds instead of local ones sidesteps the passive foreign investment company rules entirely.

Where the pitfalls are

• The reporting obligations, FBAR and Form 8938, apply even in years with no US tax, and their penalties can far exceed any tax at stake.
• Ordinary local investing, such as a foreign mutual fund or ETF, can trigger the punitive PFIC regime without the investor realizing it.
• Some states continue to claim a former resident who has not fully cut ties, adding a state return on top of the federal one.
• Interest on unpaid tax still runs from April even with the June 15 extension, so the extension is not relief from interest.
• The compliance is genuinely complex, and the cost of a preparer who understands both systems is a real annual expense.