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US TaxApril 30, 20269 min read

Living outside the US? Your filing obligations didn't stay behind

Citizenship-based taxation means returns, FBAR and possibly FATCA reporting — wherever you live. What applies to you and what it costs to ignore.

The United States taxes its citizens and permanent residents on worldwide income, wherever they live. Moving to Karachi, London or Dubai changes where you pay other taxes. It does not end the American one.

Most tax systems work on residence, so leaving eventually ends the obligation. The US works on status, and the obligation runs for as long as the status does. People abroad for years are often startled to find the requirement was live the whole time.

Citizenship is the test, not where you live

Almost every other country asks where you are resident. The US asks what you are. A citizen who has never worked a day in the country, who holds another passport and pays full tax elsewhere, still sits inside the US net. So does someone born there to visiting parents and raised abroad.

Green-card holders are in the same position. Lawful permanent residence carries US tax residence with it, and that continues until the status is formally abandoned or revoked. A card that has lapsed for travel purposes does not, by itself, end the tax side.

Filing and paying are two different obligations

The common misunderstanding is treating the return as something only people with a US tax bill need to send. The requirement to file is triggered once income passes a fairly low level; whether anything is due is worked out afterwards, once reliefs are applied.

Many Americans abroad file every year and owe nothing, because foreign tax already paid or the exclusion for earned income removes the liability. Owing nothing is the ordinary outcome, not a reason to skip the return. Thresholds vary with filing status and type of income, and self-employment income triggers a requirement at a much lower level than salary.

  • Salary from a foreign employer, paid in local currency
  • Profits from a business or practice run abroad
  • Rent from property held outside the US
  • Interest, dividends and gains on non-US investments
  • Distributions from foreign pension arrangements

The two mechanisms that prevent double taxation

Two reliefs do most of the work. The foreign earned income exclusion takes a capped amount of earned income out of US tax, provided you meet one of the tests based on bona fide residence abroad or physical presence outside the country. It covers what you earn by working, not investment income.

The foreign tax credit works on a different principle. It sets income tax already paid to another government against the US tax on the same income. Where local tax is at or above the American level, the credit will often bring the US liability to nothing on its own. Someone working in Pakistan pays Pakistani tax on those earnings, which is exactly what the credit is for.

Which relief suits you depends on the local rate and the mix of earned and investment income, and switching between them in later years carries conditions. Treaty provisions may apply as well, though US treaties generally preserve the country's right to tax its own citizens.

Neither relief is automatic. Both are claimed on a filed return, which means the people most likely to owe nothing are also the ones with the most to lose by not filing.

The FBAR is a separate report to a separate agency

The FBAR, the report of foreign bank and financial accounts, goes to the Financial Crimes Enforcement Network rather than the IRS, and it is not part of the tax return. Filing a return does not discharge it. Assuming one covers the other is the most common failure among Americans abroad.

It is triggered differently as well. The test is not income but the combined value of your foreign accounts at their highest point in the year. An account that earned nothing still counts, and the range caught is wider than most people expect.

  • Current and savings accounts in your own name abroad
  • Joint accounts, including with a non-American spouse
  • Accounts held for a parent or a child
  • Business accounts you can sign on without owning
  • Brokerage accounts and insurance products with a cash value

FATCA, and why banks abroad ask whether you are American

FATCA adds a second layer. Individuals holding foreign financial assets above certain levels must file a statement of them with the tax return itself. Those levels differ from the FBAR's and are higher for people living abroad, so it is possible to be caught by one report and not the other, or to file both and list the same accounts twice.

The other half of FATCA is aimed at institutions. Banks and investment firms outside the US report accounts held by US persons, which is why account-opening forms in Karachi and everywhere else ask about US citizenship, place of birth and green cards. The old assumption that an account far from the US is invisible no longer holds.

Catching up, and why coming forward is treated differently

For people whose failure to file was not deliberate, the IRS operates streamlined procedures. These call for a set run of back returns and a longer run of back FBARs, payment of any tax and interest arising, and a signed certification that the failure was non-wilful.

Non-wilful covers negligence, misunderstanding and genuine ignorance of the obligation, the ordinary position for someone who left the US young or later moved home on a green card. It does not cover knowing about the requirement and choosing not to comply. The certification is signed under penalty of perjury: a statement of fact, not a formality.

Where returns were filed correctly and only the FBARs were missed, a simpler route exists. Neither option remains open once the IRS has begun an enquiry, which is the whole point of them: the penalty regime for wilful conduct sits on a different scale from the one for non-wilful. Delay also makes the non-wilful account harder to tell, since it runs from the day you knew.

The state you left may not accept that you left

Federal filing is only part of the picture. States run their own income taxes under their own residence rules, and leaving the country does not automatically end a state obligation. Several treat domicile as continuing until you establish a new one and can demonstrate it.

What they look at is ordinary evidence of a life: a driving licence kept current, voter registration, a home retained, bank accounts, family left behind, long visits. No single item is decisive, but together they can support a finding that you never properly left. Some states levy no income tax at all, so check the last one you lived in.

Where to start if you are behind

Do not begin by filing something. Begin with the facts: which years are in question, what the income actually was in each, which accounts existed and at what peak values, and whether the failure to file can honestly be called non-wilful. Filing a single return in isolation can quietly close off the better options.

Currency conversion, foreign pensions, non-US funds and interests in foreign companies each carry their own treatment, some of it unfriendly. These are the areas where guessing costs most, and where a conversation with an adviser who handles both the US side and your local filings is worth having first.

The obligation follows the passport, not the address. Being far away, and having been far away a long time, changes nothing about it.

This article is general information, not advice for your situation. Tax positions turn on facts — before acting on anything here, check it against your own.

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