Taxes for Expats: What to Know Before Moving Abroad

By Melissa Groves, CPA | | 3.5.26

If you are an American planning a move abroad or already living overseas, one of the first questions that usually comes up is:

Do I still pay U.S. taxes?

The short answer is: if you are a U.S. citizen or green card holder, you generally still have a U.S. tax filing obligation.

That may sound intimidating, but it doesn’t need to be.

Taxes for expats work differently than most people expect, and once you understand how the system is structured, it becomes far more manageable. In many cases, filing is simply a matter of paperwork and coordination — not paying twice.

Let’s wade in.

Taxes for Expats Start With One Simple Truth

The United States follows a system called citizenship-based taxation. This system generally requires U.S. citizens and green card holders to file an annual U.S. tax return regardless of where they live.

Moving abroad does not sever that obligation. But filing does not automatically mean you will owe U.S. tax. Here is where confusion tends to begin.

Many Americans assume that if they:

  • Live abroad, they don’t file (or no one will “catch” them if they don’t)
  • Pay foreign taxes, they’re finished with U.S. compliance.
  • Earn below a certain amount, they don’t need to file.

None of those assumptions is entirely accurate.

The better way to think about taxes for expats is this:

You still report. Whether you owe depends on how specific provisions apply to your situation.

Differentiating between reportable and taxable is key to framing expat taxes.

Filing vs Paying: They Are Not the Same

One of the most common misconceptions is that the Foreign Earned Income Exclusion (FEIE) eliminates the need to file.

It does not.

The FEIE allows qualifying expats to exclude a certain amount of foreign earned income from U.S. taxation (for 2025, $130,000). But you must file a U.S. tax return in order to claim it.

Similarly, the Foreign Tax Credit (FTC) allows you to offset U.S. tax with foreign income taxes paid. But again, you must file to calculate and claim it.

When applied correctly, these provisions often reduce or eliminate U.S. tax, particularly in higher-tax countries.

What Income Must Expats Report?


Under U.S. law, Americans abroad must report worldwide income.

That includes income from all sources, regardless of:

  • Which country paid you
  • Which currency you were paid in
  • Whether foreign taxes were withheld

Here’s how that typically breaks down.

Employment Income

If you work for a foreign employer, your wages are reportable on a U.S. Form 1040 in U.S. dollars.

Foreign withholding does not remove the reporting requirement. It may, however, reduce or eliminate U.S. tax through the Foreign Tax Credit.

Self-Employment and Business Income

Freelancers, consultants, and business owners often face additional complexity.

Business structure matters. A sole proprietor relocating abroad is very different from a founder expanding a U.S. corporation into Europe.

For entrepreneurs, expat tax compliance becomes less about forms and more about coordinated planning.

Rental and Investment Income

Rental income from foreign property is generally reportable.

So are:

  • Dividends
  • Interest
  • Capital gains
  • Brokerage account income

Even if those amounts are taxed locally first, they are part of your U.S. filing calculation.

Retirement Accounts and Pensions

Foreign pension contributions and distributions can be nuanced.

Some foreign retirement accounts invest in pooled foreign funds that may be classified under U.S. tax law as Passive Foreign Investment Companies (PFICs), which carry specific reporting requirements.

On the U.S. side, traditional IRAs and 401(k)s receive tax-deferred treatment. But your country of residence may not recognize that deferral.

Retirement income planning for expats is rarely one-system thinking. It requires evaluating how both systems interact.

The Two Core Tools That Prevent Double Taxation


Most Americans abroad do not pay tax twice on the same income. That is because of two primary mechanisms in the U.S. tax code.

The Foreign Earned Income Exclusion (FEIE)

The FEIE allows qualifying expats to exclude a portion of earned income from U.S. tax if they meet either:

  • The Physical Presence Test
  • The Bona Fide Residence Test

This provision is often helpful in lower-tax jurisdictions or for moderate earners.

It applies only to earned income — not investment income.

The Foreign Tax Credit (FTC)

The Foreign Tax Credit allows you to claim a dollar-for-dollar credit for foreign income taxes paid.

For Americans living in higher-tax countries such as Germany or much of Western Europe, the FTC is often more advantageous than the FEIE because local tax rates frequently meet or exceed U.S. rates.

The FTC can also apply to passive income categories.

Many expats use one or both strategically, depending on income type and long-term plans.

Married to a Non-U.S. Spouse? Read This Carefully

Filing status can significantly change your tax picture. If you are married to a non-U.S. spouse and you earn more than a minimal amount of income, you generally have a U.S. filing requirement.

The more complicated question is whether to file jointly or separately.

Electing to file married filing jointly may require obtaining an ITIN (Individual Taxpayer Identification Number) for your spouse. Once you make that election, your spouse’s worldwide income can become reportable to the U.S.

That is not automatically good or bad. It depends entirely on your facts:

  • Who earns what
  • Where income is sourced
  • Whether investment accounts exist abroad
  • Long-term tax exposure

This is not a decision to make casually.

Tip: When browsing expat tax services or expat tax advisors, look specifically for professionals who mention experience with mixed-nationality couples and ITIN elections.

Which Tax Form Do You File?

Most U.S. citizens and green card holders file Form 1040.

Form 1040NR, by contrast, is for nonresident aliens or certain individuals receiving U.S.-source income after relinquishing U.S. status.

For example, someone who worked temporarily in the U.S., returned home, and later began receiving U.S. retirement distributions might start filing a 1040NR in the year distributions begin.

The form you file depends primarily on your U.S. person status, not where you live.

Retirement Accounts Abroad: Timing and Treaties Matter

When Americans move abroad, retirement accounts often become an afterthought.

They shouldn’t.

Whether retirement income is taxed in the U.S., in your country of residence, or both depends on local law and applicable tax treaties.

Some countries recognize U.S. retirement account deferral. Others do not.

Roth conversions, rollovers, and distribution timing should be evaluated in light of:

  • Your current country of residence
  • Any applicable treaty
  • Long-term relocation plans

Retirement planning abroad is rarely something to address after the move. Ideally, it is part of pre-departure planning.

Tax Treaties: What They Do and What They Don’t Do

The United States maintains income tax treaties with many countries, but not all.

Treaties generally clarify:

  • Which country has primary taxing rights
  • Whether foreign tax credits apply
  • How certain categories of income are treated

FBAR and FATCA: Disclosure, Not a Scare Tactic

In addition to income reporting, many expats must report foreign financial accounts.

If the aggregate value of foreign accounts exceeds $10,000 at any point during the year, an FBAR (FinCEN Form 114) is generally required.

This includes:

  • Checking and savings accounts
  • Foreign brokerage accounts
  • Certain pension accounts
  • Accounts over which you have signatory authority

The FBAR is not a tax form. It is a disclosure form.

FATCA (Form 8938) may also apply depending on asset thresholds.

These requirements are procedural. When handled properly, they are not punitive.

If foreign accounts are part of your situation, working with an expat tax professional who lists FBAR and FATCA compliance as part of their services can simplify the process.

State Taxes for Expats: Don’t Panic — But Don’t Ignore Them

Federal filing is only part of the picture.

Certain states, including but not limited to California, New York, and Virginia, apply aggressive residency standards.

Simply moving abroad does not automatically sever state tax obligations.

However, relocating to another state solely to avoid state tax before moving overseas is not always necessary.

In some cases, if your foreign income is excluded at the federal level and your state starts with federal taxable income, your state liability may be minimal.

State residency rules are highly fact-specific. Before making major moves, review the rules of your current state carefully.

Tip: If you are leaving a high-tax state, look for advisors with domicile and residency planning expertise.

When DIY Tools May Not Be Enough

There are situations where straightforward filing software may work. For example:

  • Single filer
  • Simple employment income
  • No foreign accounts besides a foreign checking account
  • No foreign investment income
  • No business ownership

But taxes for expats become layered quickly when you introduce:

  • Multiple income sources
  • Foreign corporations or partnerships
  • Mixed-nationality marriages
  • Retirement planning across jurisdictions
  • State tax exposure
  • Prior non-filing

This is where professional support becomes less about filling out forms and more about structuring compliance thoughtfully.

Many expat tax services position themselves around filing. The better ones position themselves around planning.

When evaluating professionals, consider what kind of complexity your situation truly involves — and whether the advisor lists experience with global mobility tax services for expats, business structuring, or retirement coordination.

What If You Haven’t Filed?

It is not uncommon for Americans abroad to discover filing obligations years after relocating.

The IRS offers programs such as the Streamlined Filing Compliance Procedures for taxpayers who were non-willful in their failure to file. Most expat tax companies and professional expat tax advisors can support with this, however, it tends to be one of the more expensive packages, so don’t hesitate to get a quote or two to compare and choose the best partner for you and your situation.

A Measured Approach to Taxes for Expats

For Americans navigating international relocation, working with a cross-border tax professional can provide clarity and peace of mind.

If you are exploring professional support, firms such as Blue Haven Advisory focus specifically on guiding Americans through the complexities of expat tax compliance.

The goal is not complexity for its own sake. It is steady compliance that allows you to focus on building a strong foundation for your life abroad, without uncertainty nagging at you while you’re trying to enjoy life outside the U.S.

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