A US citizen living abroad walks into a local bank. The bank steers them toward a “safe, diversified” local index fund or ETF, and they buy in without a second thought. The bank teller sees ordinary financial advice.
The IRS sees something else: a Passive Foreign Investment Company, or PFIC. That single purchase can turn into one of the most expensive mistakes a digital nomad makes on a US tax return. This guide explains what actually counts as a PFIC, why the tax hit runs so high, and how to invest abroad without walking into the trap.
It draws on current IRS guidance rather than the vague warnings most expat blogs repeat.
What Counts as a PFIC
A PFIC is a foreign corporation that meets an income test or an asset test. Under the income test, at least 75% of gross income comes from passive sources such as dividends, interest, or capital gains. Under the asset test, at least half of assets exist to produce passive income.
This definition sweeps in most non-US mutual funds and most foreign-domiciled ETFs. It also catches some foreign pension or insurance wrapper products that hold investments internally. The IRS Instructions for Form 8621 lay out the full test.
Congress wrote the underlying rules into Internal Revenue Code sections 1291 through 1298.
The PFIC label does not care whether a fund is well-regulated or reputable in its home market. A UCITS fund sold by a major European bank can qualify. So can an Australian superannuation-linked fund or a Singapore-domiciled unit trust.
What matters to the IRS is where the fund is domiciled and how it generates income, not its risk profile or how a local bank markets it.
Why the Tax Hit Is So Punitive
The default PFIC tax regime is called the excess distribution method. Under this method, gains and certain distributions skip normal long-term capital gains rates entirely. The IRS instead spreads the gain evenly across the whole holding period.
It then taxes each year’s allocated portion at the highest ordinary income rate in effect for that year. That rate stands at 37% for 2026, under the IRS’s 2026 inflation-adjusted brackets. On top of that, the IRS adds an interest charge, treating the tax as if it had been owed and unpaid the whole time.
Normal long-term capital gains rules would tax a fund held for ten years at 15% or 20%. The PFIC regime instead pushes the effective tax burden well above that figure once the interest charge stacks on top. Each PFIC generally needs its own Form 8621, filed every year.
A qualified expat tax preparer often charges anywhere from $50 to $300 or more per fund, per year, to handle this. Costs rise for complex or multi-fund cases. That applies even in years with no distributions at all.
The Alternatives to the Default Method
Two elections can soften the default excess distribution method. Neither one applies automatically, and both carry tradeoffs:
- Qualified Electing Fund (QEF) election. This requires the fund to supply an annual PFIC Annual Information Statement, so the shareholder can report income currently, at ordinary rates, instead of deferring it into the excess distribution regime. Very few foreign funds bother producing this statement, so the election often is not available in practice.
- Mark-to-market election. This works only for PFIC stock that counts as “marketable.” It lets the shareholder report gains and losses annually at ordinary rates, based on year-end value. That avoids the interest charge, but the shareholder still gives up capital gains treatment.
A narrow de minimis exception also exists. Treasury Regulation 26 CFR 1.1298-1 excuses some shareholders from filing Form 8621 in a given year, if they are not otherwise required to file and their aggregate PFIC value stays at or below $25,000, or $50,000 for joint filers, with a $5,000 threshold for indirect ownership. This exception is easy to blow past without noticing.
The measurement covers your total PFIC holdings, not a single fund, and it disappears entirely if you have already made a QEF or mark-to-market election, or if you received an excess distribution or recognized gain in that tax year.
How Nomads End Up Here by Accident
Most PFIC problems do not come from deliberate foreign investing. A nomad opens a local bank account for practical reasons, such as receiving local salary or paying rent. The bank’s default “savings and investment” product then sweeps that cash into an in-house fund automatically.
The same trap catches nomads who use a foreign robo-advisor, or who join a local pension scheme that invests through pooled foreign funds. Family abroad can trigger it too, through an inheritance or a gift of foreign fund shares.
Here is a concrete example. A nomad opens an EU broker account and buys a Europe-domiciled UCITS ETF that tracks the S&P 500. For IRS purposes, they have bought a PFIC, even though the underlying holdings are ordinary US stocks.
This is the specific mistake that catches out otherwise careful nomads. The fund’s US-listed underlying assets do not exempt it, because the IRS tests the fund itself, not its holdings, as the foreign corporation in question.
What to Do Instead
Most cross-border tax preparers recommend a straightforward fix: hold index funds and ETFs through a US-domiciled brokerage, not a foreign one. Several US-registered brokerages accept nomads without a fixed US address, including the options covered in our Interactive Brokers guide. That route lets you buy US-domiciled ETFs directly, and those are not PFICs for US tax purposes.
This sidesteps the entire regime instead of trying to manage it through elections and extra filings.
If you already hold foreign funds and are not sure whether they qualify as PFICs, do not guess. The definitions get technical fast, and penalties for unfiled Form 8621s can add up quickly. A cross-border tax preparer can usually confirm your exposure faster than you can by reading the statute yourself.
Every nomad’s filing situation depends on citizenship, residency, and the specific fund structure involved. Treat this article as a starting point for that conversation, not a substitute for it.
This article draws on the current IRS Form 8621 instructions and Treasury regulations on PFIC reporting thresholds.
FAQ
Does a foreign ETF that only holds US stocks still count as a PFIC?
Generally yes. The PFIC test looks at where the fund itself is domiciled and how it generates income, not at the nationality of the underlying holdings. A Europe-domiciled ETF that tracks a US index typically still counts as a PFIC.
Do I still need to worry about PFICs if my foreign fund holdings are small?
A de minimis exception can excuse you from filing Form 8621 if your aggregate PFIC value comes to $25,000 or less, or $50,000 for joint filers, and you are not otherwise required to file. This threshold covers all your PFIC holdings combined, so it is easy to exceed without realizing it.
Are employer or local pension schemes affected by PFIC rules?
They can be, if the pension invests through pooled foreign funds. Some pension arrangements carry specific tax treaty protections, but this varies significantly by country. Confirm your specific plan’s treatment with a cross-border tax preparer rather than assuming treaty protection applies.
Related Reads
- Interactive Brokers Account Without a US Address (2026) — how to hold US-domiciled ETFs directly and avoid the PFIC problem described here.
- Digital Nomad Investing: How to Invest With No Fixed Address — broader context on brokerage options for nomads without a US address.
- Backdoor Roth IRA for Digital Nomads: How the Workaround Works — another narrow tax mechanic worth understanding alongside PFIC exposure.
Sources
- IRS, Instructions for Form 8621 (Rev. December 2025) — irs.gov/instructions/i8621
- IRS, About Form 8621 — irs.gov/forms-pubs/about-form-8621
- IRS, tax year 2026 inflation adjustments (Revenue Procedure 2025-32) — irs.gov/newsroom
- Treasury Regulation 26 CFR 1.1298-1, PFIC reporting de minimis exception — govinfo.gov
