Form 8938 vs the FBAR: two reports, one set of accounts

It is the Statement of Specified Foreign Financial Assets, filed with your annual tax return under FATCA. It reports foreign accounts plus other foreign assets, and it exists so the IRS can match what you hold abroad against what you declare.

The official page for Form 8938 sets out the filing mechanics. Because it rides with the return, it shares the return's deadline and its extensions. Miss the return and you miss this too, automatically.

That attachment detail matters more than it sounds. In our practice we see people who filed a return through consumer software, unaware the software never asked the foreign-asset questions at all. The form was simply never generated, and nobody noticed for years.

Three ways: the agency, the scope, and the trigger. Form 8938 goes to the IRS with your return and covers specified foreign financial assets broadly. The FBAR goes to FinCEN separately and covers foreign financial accounts. Their thresholds are also completely different, so one can apply while the other does not.

The FBAR's rule is the simpler of the two. Per FinCEN's guidance, you file once your non-US accounts together exceed $10,000 at any point in the calendar year. That figure never changes with residence, marital status, or anything else.

The FATCA side flexes instead. Thresholds shift with where you live and how you file, and they run far higher for people abroad. So a London-based American frequently crosses the FBAR line years before the other one becomes relevant at all.

Residence sets them, and living abroad raises them considerably. The IRS comparison page states the figures directly. Unmarried filers abroad report once assets top $200,000 on the last day of the tax year, or $300,000 at any time during it.

Married filing jointly abroad doubles both numbers, to $400,000 and $600,000 respectively. Meanwhile filers living inside the United States face much lower bars: $50,000 and $75,000 unmarried, or $100,000 and $150,000 jointly. So a move across the Atlantic can switch the duty off entirely.

Notice the two-part structure of each test. A year-end figure and a peak figure both count, and crossing either one is enough. That catches people who sell a property in June and hold the proceeds briefly, even though their December balance looks modest.

Filing status matters as much as residence. A married couple filing separately uses the single-filer figures, not the joint ones. That trips up plenty of households, since separate filing is common where one spouse is not American.

More than bank accounts, which is the practical difference between the two reports. Foreign stock or securities held outside an account, interests in foreign entities, and certain foreign financial instruments can all count, alongside the ordinary deposit and investment accounts.

So an American in the UK holding shares directly in a private company, or an interest in a foreign partnership, may report on the FATCA form while the FBAR ignores it entirely. Conversely, an account you merely have signature authority over can hit the FBAR without touching Form 8938.

Because the two definitions genuinely diverge, the safe method is listing every foreign holding once and testing it against both rules. Our FBAR threshold checker handles the account side of that arithmetic in a minute.

Pensions deserve their own look each year. UK workplace schemes vary in structure, and the structure drives the answer. Ask the question once, record the reasoning, then reuse it annually rather than re-litigating it.

Frequently both, and filing either one never discharges the other. They come from different statutes, land at different agencies, and answer different questions. The IRS says as much on its comparison page, and it is the single most common misunderstanding we correct.

For a typical UK-based American with a salary, savings, and a workplace pension, the FBAR usually applies while the higher FATCA thresholds do not. Add a house sale, an inheritance, or a share portfolio, though, and the second report joins the first quickly.

The overlap is not wasted effort either. Because both reports draw on the same account list and the same year-end values, doing the work once feeds both filings. That is why we prepare them together rather than as separate exercises.

One practical note on sequencing. Do the account work once, early, then let it feed both filings. Preparers who build the list twice charge for it twice, and the second pass rarely improves on the first.

Keep the reasoning as well as the numbers. Next year you will want to know why an account was included or left out. A short note beside each holding saves rebuilding the analysis from memory.

The analysis runs the same way every year, and it gets faster once the list exists.

Do it in order, because each step narrows the next. Skipping ahead is how people conclude wrongly that neither report applies.

Take an illustrative example: an American engineer in Manchester with a current account, a savings account, and a workplace pension. Together they peak around $60,000 during the year. Her FBAR duty is clear, because the accounts pass $10,000 easily.

Her FATCA position is different. As an unmarried filer abroad, she needs more than $200,000 at year end or $300,000 at a peak, and $60,000 clears neither bar. So she files the FBAR alone, and the second form stays irrelevant this year.

Now suppose she inherits a family flat in Leeds and sells it, holding the proceeds for two months. That peak can push her past the higher threshold, and the same year suddenly needs both reports. Nothing about her banking changed; the arithmetic did.

The lesson generalises. Test both rules every year, against the same list. A year that needed one report can easily need two, and nothing warns you when the line gets crossed.

The first is assuming the software handled it. Consumer packages often bury the foreign-asset questions, and an unasked question produces no form. The second is treating the FBAR as sufficient, which conflates two separate regimes that happen to overlap.

The third mistake is testing only year-end values. Both FATCA thresholds include a peak test, so a mid-year spike counts even when December looks quiet. People who sell property or receive a lump sum get caught by exactly this.

Also watch the pension question, because UK workplace schemes need thought rather than assumption. Getting that wrong in either direction is common, and it changes both reports at once. Our guide to UK pensions under US rules covers the wider treatment.

A fifth mistake is quieter than the rest. People stop filing entirely after a year of nil tax, assuming nothing is owed and nothing is due. Yet these reports are disclosures rather than tax computations. The duty survives a zero bill completely intact.

Both reports carry their own penalties, and they are separate from any tax. The FATCA form has statutory penalties for non-filing that escalate if the failure continues after notice, while missed FBARs sit under FinCEN's own civil framework, summarized on the IRS FBAR page. Check the current amounts on the official pages rather than an old article.

The unfiled return also stays open indefinitely, which is the quieter cost. Meanwhile the practical exposure has grown, because banks worldwide now report US-person accounts under the same FATCA architecture that created this form in the first place.

If several years are already missing, the right response is a catch-up route rather than a quiet fix. Our guides to the delinquent FBAR procedures and what streamlined filing costs cover the options and the price of each.

Start with the current year if the past looks daunting. Filing this year on time stops the pile growing while the older years get planned properly. It also shows a clear change of direction, which helps every route back.

We prepare the return, the FATCA form and the FBAR as one exercise through our US federal returns service. One account list feeds all three, the pension and entity questions get answered properly, and the two reports agree with each other rather than contradicting.

If you suspect a form was never generated in past years, say so early. Send us the outline and we will scope the position and quote a fixed fee before any work begins. This article is general information, not personal tax advice; take advice on your own facts from a qualified US-UK adviser.

Most engagements start with one question about one account. That is a perfectly good place to begin, and it usually settles the whole year quickly.