Living Abroad? You Still Have to File a U.S. Tax Return — Here’s Why

Every year, thousands of Americans move abroad for a new job, a marriage, a military posting, or simply a different kind of life — and quietly assume that once they leave U.S. soil, the IRS leaves them alone too. It’s an understandable assumption. Almost every other country in the world taxes based on residency: live there, pay taxes there; move away, and your tax obligation moves with you.

The United States doesn’t work that way.

The U.S. Taxes Citizenship, Not Just Residency

The U.S. is one of only a small handful of countries in the world — Eritrea is the other well-known example — that taxes based on citizenship rather than residency alone. That means if you are a U.S. citizen or a green card holder, the IRS still expects a tax return from you every year, regardless of where you live, where you work, or where your income is earned.

It doesn’t matter if:

• You haven’t set foot in the United States in a decade
• Your income is entirely earned and paid in a foreign currency
• You already pay taxes to the country where you live
• You’ve never owed the IRS a dollar in your life

If you hold U.S. citizenship or lawful permanent residency (a green card), the filing requirement follows you. This surprises a lot of people — and it’s the single most common misunderstanding we see among Americans living overseas.

Who Exactly Needs to File

Generally, if your worldwide income exceeds the standard IRS filing thresholds — which are the same whether you live in Pasadena or Prague — you’re required to file a U.S. federal tax return. This includes:

• U.S. citizens living abroad, whether by choice, marriage, career, or military/embassy assignment
• Green card holders, even if they haven’t lived in the U.S. in years
• Dual citizens, including people who may not think of themselves as “American” in daily life but were born in the U.S. or to U.S. parents
• Self-employed individuals abroad, who often have an even lower filing threshold than employees

Many people are especially surprised to learn that dual citizens fall into this category. If you were born in the U.S. and moved away as a child, or you’re a citizen of another country who also happens to hold U.S. citizenship through a parent, the obligation applies to you too — even if you’ve never held a U.S. passport as an adult or filed a U.S. return in your life.

“But I Already Pay Taxes Where I Live”

This is the second most common question we hear, and it’s a fair one. The good news is that the U.S. tax code includes several tools specifically designed to prevent Americans abroad from being taxed twice on the same income:

• The Foreign Earned Income Exclusion (FEIE) allows qualifying individuals to exclude a substantial amount of foreign-earned income from U.S. taxation each year.
• The Foreign Tax Credit (FTC) allows you to offset U.S. tax liability with taxes already paid to a foreign government.
• Tax treaties between the U.S. and many other countries can further reduce or eliminate double taxation on certain types of income.

The catch is that none of these benefits apply automatically. You have to file a return and affirmatively claim them. Skip the filing, and you don’t just miss out on paperwork — you miss out on the protections that were built specifically to keep this fair.

What Happens If You Don’t File

For many expats, the real issue isn’t a lack of willingness — it’s a lack of awareness. People genuinely don’t know the requirement exists, sometimes for years at a time. Unfortunately, “I didn’t know” doesn’t make the requirement disappear, and unfiled returns can quietly stack up in the background while life abroad continues normally.

The consequences of not filing can include:

• Penalties and interest that accumulate over time, even if no tax is ultimately owed
• Complications renewing a U.S. passport in serious, long-term non-filing cases
• Difficulty if you ever want to sell U.S. property, transfer significant assets, or return to live in the U.S.
• Added stress and cost if the situation isn’t addressed until the IRS sends a notice

The encouraging part: the IRS has formal programs designed specifically to help people who fell behind in good faith get caught up without excessive penalties. If this describes your situation, catching up sooner rather than later is almost always the better path — both financially and for your peace of mind.

This Also Sets Up Other Filing Requirements

Filing an annual U.S. tax return while living abroad is often just the first piece of the puzzle. Depending on your situation, you may also have separate reporting requirements tied to:

• Foreign bank and financial accounts (commonly known as FBAR)
• Foreign assets reported directly on your tax return under FATCA

These are separate filings with their own thresholds and their own penalties for missing them — and they trip up even careful, well-intentioned filers because the rules aren’t always intuitive. We’ll cover exactly how FBAR and FATCA differ, and when each one applies to you, in the next article in this series.

Common Situations That Catch People Off Guard

A few scenarios come up again and again with clients who are surprised to learn they had a filing obligation all along:

The “accidental American.” Someone born in the U.S. to non-U.S. parents, who left as an infant and has no memory of living there, is still a U.S. citizen under the law — and still has a filing requirement, whether or not they’ve ever held a U.S. passport as an adult.

The long-term retiree abroad. Retirees who moved overseas years ago sometimes assume that once they stopped working, the filing requirement stopped too. It doesn’t. Pension income, investment income, and Social Security can all factor into whether a return is still required.

The small business owner or freelancer. Self-employed Americans abroad often have a lower filing threshold than employees, and self-employment tax can apply even when income tax doesn’t — a detail that’s easy to miss without guidance.

The spouse of a non-U.S. citizen. Being married to someone who isn’t a U.S. citizen doesn’t change your own filing obligation, and it can introduce additional complexity depending on how you and your spouse choose to file.

If any of these sound familiar, you’re far from alone — these are some of the most common questions we field from clients living all over the world.

Getting Started the Right Way

The most important thing to understand is that filing from abroad isn’t simply “the same U.S. tax return with a foreign mailing address.” The forms, the exclusions, the credits, and the deadlines all have nuances specific to living overseas — and small mistakes here can mean paying more than necessary, or missing a benefit you were entitled to claim.

That’s where working with someone who understands both the U.S. tax code and the realities of life abroad makes a real difference. Whether you’re filing for the first time from a new country, catching up on several years you missed, or simply want a second set of eyes to make sure everything is being handled correctly, getting it right from the start saves both money and stress down the road.

The Bottom Line

Moving abroad changes a lot about your life — but it doesn’t change your relationship with the IRS. If you’re a U.S. citizen or green card holder living overseas, you’re still expected to file a U.S. tax return each year, even if you owe nothing in the end. The good news is that the tools to avoid double taxation exist, they work well, and getting set up correctly from the start (or getting caught up if you’ve fallen behind) is far less painful than most people expect.

If you’re not sure where you stand, that’s exactly the kind of question worth a real conversation rather than guesswork.

Not sure if you’re up to date on your U.S. filing obligations while living abroad? Request a consultation and let’s find out together.