Are all foreign mutual funds PFICs?

In practice, yes. The vast majority of foreign-domiciled mutual funds, ETFs, unit trusts, OEICs, and UCITS meet either the PFIC income test (75%+ passive income) or the asset test (50%+ passive assets). Unless the fund is actively managed as an operating business — which almost never describes a pooled investment vehicle — it is a PFIC. The safest rule for expats is to treat every foreign-domiciled fund as a PFIC until proven otherwise.

Is an ISA with foreign funds a PFIC problem?

Yes. The ISA wrapper provides UK tax advantages, but the US ignores the wrapper. The IRS looks through to the underlying investments. If your ISA holds unit trusts, OEICs, or UCITS, those underlying funds are PFICs. You must file Form 8621 for each fund, and the PFIC tax regimes apply regardless of the ISA structure. The ISA may actually make the problem worse by encouraging regular contributions into PFICs.

What should I buy instead of foreign mutual funds?

Use a US brokerage account to buy US-domiciled ETFs and mutual funds with international exposure. Examples include VXUS (total international), VEA (developed markets), VWO (emerging markets), and FTIHX (Fidelity total international). These are US corporations, not PFICs, and they provide the same geographic exposure. Direct ownership of individual foreign stocks, foreign bank deposits, and direct real estate are also safe.

Are Foreign Mutual Funds PFICs? What Expats Need to Know

The single most common PFIC mistake I see is an American expat walking into a local bank in London, Singapore, or Sydney and buying the same product every local citizen buys: a foreign mutual fund. The advisor recommends it. The fund has a solid track record. The fees seem reasonable. And because the advisor has never heard of a PFIC, nobody warns the client.

Two years later, the client comes to FileAbroad with a portfolio of 12 foreign funds and a tax problem that will cost tens of thousands of dollars to unwind.

The Short Answer

Yes. Foreign mutual funds are PFICs. Almost all of them. The structure of a mutual fund — pooled investor money, passive investment in stocks and bonds, professional management — is exactly what the PFIC rules were designed to capture.

What Counts as a Foreign Mutual Fund

The term "mutual fund" means different things in different countries. For US tax purposes, the following are all treated as foreign mutual funds and are almost always PFICs:

Mutual funds registered in Canada, Australia, Japan, India, or any non-US jurisdiction.
UCITS (Undertakings for Collective Investment in Transferable Securities) — the standard EU fund structure sold in Germany, France, Spain, Italy, the Netherlands, Luxembourg, and Ireland.
OEICs (Open-Ended Investment Companies) — common in the UK.
Unit trusts — also common in the UK and former Commonwealth countries.
Investment trusts — closed-end funds listed on foreign exchanges.
SICAVs and FCPs — French and Luxembourg fund structures.
ETFs listed on non-US exchanges (Tokyo, London, Frankfurt, Sydney, Toronto).

If the product pools money from multiple investors to buy securities, and it is domiciled outside the US, assume it is a PFIC.

OEICs and UCITS in Detail

OEICs (UK)

OEICs are the UK's standard open-ended investment company. They are companies, not trusts, and they issue shares. Investors buy shares in the OEIC, and the OEIC manager invests in a portfolio of stocks, bonds, or other securities.

Because the OEIC's income is virtually always passive (dividends, interest, capital gains) and its assets are virtually always passive investments, it meets both PFIC tests. Every OEIC I have ever reviewed for a US taxpayer was a PFIC.

UCITS (EU)

UCITS are regulated at the EU level and sold across Europe. They are marketed as safe, diversified, and liquid. They are also, almost without exception, PFICs.

A UCITS domiciled in Luxembourg or Ireland may have tax advantages under local law, but those advantages do not translate to US tax law. The US tax treatment is determined by the Internal Revenue Code, not the fund's local regulatory status.

Unit Trusts

UK unit trusts are not companies — they are trusts. However, the PFIC rules apply to "foreign corporations," and the IRS has issued guidance treating certain foreign trusts and contractual arrangements as foreign corporations for PFIC purposes if they function like corporations. Even if a unit trust escapes PFIC classification by technical argument, it is almost certainly a foreign trust requiring Form 3520 reporting, which carries its own penalties.

ISAs and PFICs

The Individual Savings Account (ISA) is a UK tax wrapper. Cash ISAs are fine — they are bank accounts. Stocks and Shares ISAs are where the problems start.

A Stocks and Shares ISA holds mutual funds, unit trusts, or OEICs. The ISA wrapper shields gains from UK tax, but the US does not recognize the ISA. The IRS looks through the wrapper to the underlying funds and applies PFIC rules.

Example: A US expat in London contributes £20,000 per year to a Stocks and Shares ISA holding three UK unit trusts. Those three unit trusts are PFICs. The expat must file three Forms 8621 annually. The ISA provides no US tax benefit and may create a US tax liability under the excess distribution or mark-to-market regimes.

Why Local Advisors Get This Wrong

Local financial advisors are licensed under local law. They are trained on local products. They are not required to know US tax law, and most do not. When a US client asks about tax implications, the advisor answers based on local tax rules. The advisor has no reason to know that the US imposes a separate, punitive tax regime on the same product.

This is not negligence — it is a jurisdictional mismatch. The advisor is doing their job under their regulatory framework. The client is the one who bears the consequences of the mismatch.

The Cost of Getting It Wrong

Tax Drag

A foreign mutual fund held inside a PFIC without election triggers the excess distribution regime. Over a 10-year hold, the effective tax rate on gains can exceed 50%. Compare that to a US-listed ETF held long-term, where the capital gains rate is 15% or 20%.

Example: $100,000 invested in a UK OEIC, grown to $200,000 over 10 years.

PFIC excess distribution regime: ~$50,000+ in federal tax.
US-listed ETF at 20% LTCG: $20,000 in federal tax.
Difference: $30,000+ — on one fund, for one taxpayer.

Compliance Costs

Form 8621 is 6–8 pages per PFIC. A portfolio of 10 foreign funds requires 10 separate forms. The form requires data most taxpayers do not track: historical cost basis, holding period allocation, interest charge calculations. Professional preparation of 10 Forms 8621 can cost $3,000–$10,000 per year.

Penalty Risk

Failure to file Form 8621 carries a $10,000 penalty per form. If you own 10 PFICs and fail to file for three years, the penalty exposure is $300,000. While the IRS does not assess these penalties automatically in all cases, the risk is real and growing as the IRS improves its data matching.

What to Do If You Already Own Foreign Funds

Step 1: Identify Every Foreign Fund

Go through every account — checking, savings, brokerage, ISA, pension wrapper, insurance policy — and list every fund that is not US-domiciled. Do not rely on the account statement to flag PFICs. The statement will not.

Step 2: Determine Whether Elections Are Possible

If the fund provides an Annual Information Statement, a QEF election may be available. If the fund is publicly traded, a mark-to-market election may be available. If neither is available, the excess distribution regime applies.

Step 3: Model the Tax Cost of Holding vs. Selling

Selling a PFIC triggers recognition of built-in gain under the excess distribution regime if no election was made. The tax cost of selling may be high — but so is the tax cost of continuing to hold. You need to model both scenarios.

Step 4: Restructure Into US-Domiciled Alternatives

The cleanest solution for most expats is to sell the foreign funds — accepting the one-time PFIC tax hit — and reinvest in US-listed ETFs. The long-term savings from normal capital gains treatment usually outweigh the one-time PFIC cost within a few years.

Safe Investment Structures for Expats

Structure	PFIC?	Form Required	Notes
US-listed ETF (VXUS, VEA, VWO)	No	None	Best replacement for foreign funds
Individual foreign stocks	No	None if held directly	Direct ownership is safe
Foreign bank deposits	No	FBAR / Form 8938	Interest is taxable, not PFIC income
Direct foreign real estate	No	None	Rental income is taxable; no PFIC issue
Foreign mutual fund / UCITS / OEIC	Yes	Form 8621	Avoid
Unit trust inside ISA	Yes	Form 8621	ISA wrapper does not help
Foreign hedge fund	Yes	Form 8621	Almost always a PFIC

The Bottom Line

Foreign mutual funds are the most common PFIC trap because they are the most common investment product sold to ordinary investors outside the US. The products are not fraudulent or defective — they are simply designed for taxpayers who are not subject to US law. As a US citizen or green-card holder, you are subject to US law everywhere on earth.

The solution is not to stop investing. The solution is to invest through US-domiciled vehicles that provide the same exposure without the PFIC tax bomb.

How FileAbroad Helps

FileAbroad specializes in PFIC analysis for American expats:

Portfolio audit: We identify every PFIC in your accounts.
Election review: We check whether QEF or mark-to-market elections are available and beneficial.
Restructuring plan: We model the tax cost of selling vs. holding and recommend US-domiciled alternatives.
Form 8621 preparation: We prepare all required PFIC forms and calculations.

If you own foreign funds and want to know exactly what it is costing you, start with the free intake and upload your account statements.

Disclaimer: This article is for informational purposes only and does not constitute tax, legal, or investment advice. Tax laws change frequently, and individual circumstances vary. Consult a qualified tax professional before making decisions based on this content.