A simple foreign fund should not blow up a decade of savings—yet for U.S. citizens abroad, the PFIC regime can turn a plain ETF into a financial trap. We pull back the curtain on how ordinary investments meet an extraordinary tax system, why the default rules punish long holding periods, and how to rebuild a portfolio that won’t collapse under Form 8621 and daily compounded interest.

We start with the origin story: PFIC rules were crafted to shut down offshore shelters in 1986. The intent targeted billionaires, but the design is universal—so a teacher in London with a tiny slice of a local fund gets treated like a tax haven operator. We break down the 75% income test and 50% asset test, explain why most non‑U.S. pooled funds fail, and reveal the “time travel” math behind Section 1291. Selling a PFIC converts your entire gain into an excess distribution, spreads it across prior years at top ordinary rates, and layers on underpayment interest. The result can be a 57%–67% effective tax on a $100,000 gain, with losses offering little relief.

Then we tackle the catch‑22. European PRIPs rules require a KID, but U.S. ETF issuers can’t provide it without clashing with SEC restrictions, blocking expats from the cleanest solution. Local wrappers like the UK ISA and Canadian TFSA don’t help under U.S. law, and accumulation share classes create phantom income with no cash to pay tax. We share practical fixes: when a QEF election is possible (and which providers issue statements), how a mark‑to‑market purge stops the interest time bomb, and why individual operating company stocks are a clean bypass. For UK listeners, we spotlight the sweet spot—U.S.-domiciled ETFs that also carry UK Reporting Fund status—plus the brokerage routes that make access possible.

If you’re already holding a toxic portfolio, we lay out triage: shut off dividend reinvestment, harvest losses to simplify reporting, and evaluate a purge to reset the clock. The big takeaway is simple but urgent: structure determines outcome. Get the vehicles and elections right, and you keep more of your returns; get them wrong, and compounding belongs to the IRS. If this helped, follow the show, share with a fellow expat, and leave a review so more people can sidestep the PFIC trap.

More info at Investing Abroad for U.S. Citizens and Resident Aliens. If you have questions, contact us. 

Moving, Working, and Investing for Americans Abroad