PFIC Planning Dual-Citizen Entrepreneurs: Escape the Trap

How Dual-Citizen Entrepreneurs Structure Investments to Escape the PFIC Trap

Effective PFIC planning for dual-citizen entrepreneurs comes down to one habit: choosing where to hold an investment before you buy it. Hold your money in US-domiciled funds inside a US brokerage, keep company cash out of pooled UK funds, and file the right election in year one, and the punitive PFIC regime largely disappears.

Why does a UK fund become a US tax problem?

Picture Maya, a Manchester-born founder who also holds a US passport through an American mother. She sells a stake in her design agency, banks a healthy sum, and does the sensible British thing: she drips it into a stocks-and-shares ISA and a couple of well-rated OEICs. Her UK accountant is delighted. Her future US tax return is quietly detonating.

The reason is a single line of the US tax code. Under Internal Revenue Code section 1297, a foreign corporation is a Passive Foreign Investment Company (PFIC) if 75% or more of its gross income is passive, or at least 50% of its assets produce passive income. Almost every pooled non-US fund clears that bar by design. To the IRS, a UK OEIC, unit trust, investment trust, money-market fund, or Irish-domiciled ETF is not a friendly retail product — it is a foreign investment company, and a US owner is subject to the PFIC rules from the first share.

For dual-citizen entrepreneurs, this is the blind spot at the center of PFIC planning.A UK citizen who holds US citizenship rarely thinks of themselves as an American investor. But US taxation follows the passport, not the postcode, so the same ISA that shelters a British neighbor from all tax exposes the dual citizen to one of the harshest regimes Congress ever wrote. Our guide to the US-person ISA tax trap explains exactly why the “tax-free” wrapper offers no US-person protection.

What are the three PFIC regimes, and why do they matter?

Once you own a PFIC, US law offers three ways to be taxed, and the default is the one you never want. Sound PFIC planning for dual-citizen entrepreneurs depends on knowing which regime you have quietly opted into.

Section 1291: the excess-distribution default

If you make no election, section 1291 applies automatically. Gains and “excess distributions” — broadly, a payout above 125% of your prior three-year average — are spread back across your whole holding period, taxed at the highest ordinary rate for each past year, and then charged a compounding interest surcharge as if you had underpaid all along. Hold a fund for a decade, and the combined bill can swallow a large slice of the profit. This is the “PFIC trap”.

Section 1295: the QEF election

A Qualified Electing Fund election under section 1295 is far kinder: you simply report your share of the fund’s ordinary earnings and net capital gain each year, at normal rates, with no interest charge. The catch for British investors is practical. A QEF election requires the fund to issue a PFIC Annual Information Statement, and most UK and European fund houses have never heard of the form, let alone produce one. The election is off the table without that declaration.

Section 1296: mark-to-market

For PFIC shares that trade on a qualified exchange, a mark-to-market election under section 1296 allows you to recognize the annual paper gain as ordinary income and claim limited losses. It avoids the section 1291 interest charge but still converts long-term growth into higher-taxed ordinary income year by year. It is a rescue, not an ideal.

The paperwork is unrelenting, regardless of the regime: Form 8621 needs to be submitted annually for each PFIC.  Ten funds mean ten forms. Our deep dive on Form 8621 breaks down each part line by line.

The company layer is where PFIC planning for dual-citizen enterprises typically breaks down.

The personal ISA is only half the story. The bigger surprise for founders sits inside their own company. If your UK limited company retains profit and parks that cash in OEICs, bond funds, or a money-market fund, the company itself can flunk the section 1297 tests and become a PFIC in its own right. Suddenly, the vehicle you built to run an active business is, in the US’s eyes, a passive foreign investment company — and your shares in it carry the section 1291 taint.

There is a saving grace, and it is where careful PFIC planning for dual-citizen entrepreneurs can rely on it and earn its keep. A company you control is usually a Controlled Foreign Corporation (CFC) and is reported on Form 5471. A US shareholder of a CFC is often taxed under Subpart F and the GILTI regime under the coordination rules instead of the PFIC system, which eliminates the worst of the excess-distribution mechanics — though it brings its own reporting, as our Form 5471 guide explains. Minority stakes are particularly vulnerable. For example, a dual citizen who owns, say, 8% of a UK fund-holding company may be classified as a PFIC but not a CFC. You also have a structural lever. A check-the-box election on Form 8832 lets you treat an eligible UK company as a disregarded entity or partnership for US purposes, collapsing the corporate layer. Hence, there is no separate foreign corporation to be a PFIC at all. It is powerful but blunt — it changes how all of the company’s income flows onto your US return — so it belongs in a plan, not a panic. We cover the mechanics in our check-the-box election walkthrough.

How do you actually structure your way out of the trap?

Escaping the PFIC trap is less about clever elections after the fact and more about ownership design before you invest. Five moves do most of the work in real-world PFIC planning for dual-citizen entrepreneurs.

1. Move personal investing into US-domiciled funds. A US-registered mutual fund or ETF held in a US brokerage account is treated as a domestic corporation by the IRS, so it is not a PFIC. You keep diversified, low-cost market exposure while stepping entirely outside section 1297, and you still get ordinary US tax treatment on dividends and long-term gains rather than the back-loaded penalty rates. Our note on US-domiciled funds for expats lists the practical account options for UK residents.

2. Direct-hold individual shares to gain UK or global exposure. Owning ordinary shares in a single trading company is not a PFIC holding because an active operating business is not a passive fund. A concentrated basket of direct equities — a handful of listed companies rather than a pooled tracker — sidesteps the fund problem entirely, at the cost of doing your own diversification.

3. Keep company cash out of pooled funds. Retained profit belongs in plain deposit accounts, fixed-term savings, or direct instruments — not OEICs or money-market funds that would tip your company across the section 1297 asset test. This single discipline prevents the business layer from ever becoming a PFIC, and it keeps your Form 5471 reporting clean rather than tangled up with a passive-holding overlay.

4. Elect in year one, not year ten. Where you genuinely must hold a foreign fund, make a QEF or mark-to-market election on the very first return. A “pedigreed” QEF from day one avoids the section 1291 interest charge entirely; a late election means cleansing the fund first, which usually triggers a gain on the sale of the fund that is taxed under the old regime before the kinder treatment can begin. Timing, in other words, is worth real money.

5. Design the company so profit is active. Keep trading income, staff, and operations genuinely central so the company passes the income and asset tests as an active business, and consider check-the-box or CFC positioning where a passive holding pattern is unavoidable. The aim is a structure that would survive an IRS reading of section 1297 on its own facts, not one that merely hopes to go unnoticed.

None of this requires exotic offshore structures. Do not forget the UK ISA rules that make these wrappers attractive to non-Americans, and remember that the US-UK tax treaty does not override the PFIC regime — it coordinates the two systems but leaves section 1297 firmly in place.

Case study: rescuing a founder mid-flight

Tom, a London games-studio founder with US-UK dual citizenship, came to us three years into a growing portfolio. He held nine UK OEICs across an ISA and a general account, and his limited company had £220,000 of retained profit sitting in a money-market fund “to earn a bit of interest”. He had never filed Form 8621 and had no idea any of it mattered to the IRS.

We mapped every holding, quantified the latent section 1291 interest exposure, and rebuilt the structure over one tax year: the personal OEICs were sold and reinvested into US-domiciled ETFs in a new US brokerage account; the company cash was moved from the money-market fund into a fixed-term business deposit, removing the company’s PFIC risk; and we filed the back-year 8621 forms with mark-to-market elections to stop the interest clock. The result was a clean, defensible position going forward and a projected five-figure savings compared to the do-nothing path — the payoff of deliberate PFIC planning that dual-citizen entrepreneurs too often leave until it is expensive.

Talk to a cross-border specialist.

If you hold a US passport and a British portfolio, the PFIC rules are almost certainly already in play. The good news is that with the right structure, the trap is avoidable rather than inevitable. Email hello@jungletax.co.uk, call 0333 880 7974, or visit jungletax.co.uk to book a review with our US-UK team before your next investment decision.