The 7 Most Expensive Investment Mistakes American Expats Make

After enough conversations with Americans abroad, the same handful of expensive mistakes appears again and again — different countries, different portfolios, same wounds. Here are the seven that cost the most, ranked roughly by damage.

1. Buying foreign funds (the PFIC classic)

The undisputed champion. A well-meaning local bank, a tidy European index fund, and a US tax treatment so punitive it can consume the bulk of your gains — plus a per-fund, per-year filing burden. If this is news, stop here and read the PFIC trap first.

2. Cashing out retirement accounts on departure

“I’m leaving, so I should close everything” feels tidy and costs a fortune: income tax plus (usually) a 10% early-withdrawal penalty, plus decades of lost compounding. Your 401(k) and IRA can stay, grow and be managed from abroad — here’s how.

The cousin of this mistake is the do-it-yourself rollover. A 401(k) distribution paid out to you carries 20% mandatory withholding, and you then have 60 days to put the full amount into an IRA — including the 20% you never received, from your own pocket. Fall short and the missing slice becomes a taxable distribution, with the 10% on top if you’re under 59½. A direct trustee-to-trustee transfer avoids both.

If you genuinely need cash for the move, there is a pecking order. Roth contributions — the money you put in, not what it earned — can generally be taken back without tax or penalty, which makes them a far cheaper emergency source than a 401(k), though every dollar out stops compounding. A two-country emergency fund means you never have to choose.

3. Panic-selling when a brokerage restricts the account

A restriction letter arrives and people liquidate everything — realising years of capital gains in a single tax year. Almost always unnecessary: an in-kind transfer to an expat-friendly brokerage moves holdings without selling. The playbook.

4. Contributing to an IRA the FEIE already emptied

Exclude all your income with the Foreign Earned Income Exclusion, contribute to your Roth anyway, collect a 6% penalty that repeats annually. Quiet, common, entirely avoidable — the rules explained.

The exclusion is $132,900 per person for 2026, so most salaries abroad can be excluded entirely, which is why this one is so common. The saving grace: withdrawn with its earnings before the return deadline, the penalty never bites. The mistake isn’t contributing. It’s failing to notice for years.

5. Buying insurance-wrapped “investment plans” sold to expats

The classic expat-hub product: a 25-year “savings plan” wrapped in insurance, sold by commission-hungry “advisors” over free dinners. High fees, brutal exit penalties, and for Americans usually PFIC problems on top. If someone selling an investment gets paid by the product provider rather than by you, walk away — it’s the entire reason our Trusted Advisor Matching only works with fee-only fiduciaries.

The tell is regulatory, not stylistic. Ask three questions: who regulates you, in which country, and are you licensed to advise a US person at all? Products aimed at expats are often issued from a jurisdiction chosen for the lightness of its rules, by a salesperson licensed nowhere you actually live. A genuine adviser can name their regulator without pausing, show a fee schedule in writing, and tell you what leaving early would cost. Hesitation is your answer.

6. Ignoring currency in the plan

Assets in dollars, life in euros, no plan for the gap. A strong-dollar year feels great; a weak-dollar year cuts your income by double digits. It doesn’t need fixing with exotic products — it needs a deliberate structure (expat currency strategy and exchange-rate risk for retirees).

7. Stopping investing altogether

The quietest mistake: overwhelmed by PFIC/PRIIPs/brokerage noise, people park everything in cash “until it’s sorted” — and five years later it still isn’t. The rules are navigable; the standard architecture is genuinely simple once set up (start here). Time out of the market is the one loss you never get back.

Two habits that prevent most of them

First, put the money decisions on the same calendar as the visa. Every mistake above has a cheap version before departure and an expensive version after: the transfer done from a US address, the FEIE-or-credit election settled before the first return, the brokerage policy confirmed in writing. Second, write down what you own and why. A one-page list of accounts, wrappers and who taxes each of them is what stops a friendly local banker selling you a PFIC, because you’ll know the word before he does (how to build it). Neither needs a product; both need a fortnight of attention at the right moment — the fortnight most people spend on the shipping quote.

The pattern behind all seven

Every one of these mistakes happens at a transition moment — the move itself, the address change, the first local bank meeting. Which is exactly why we insist the money planning happens before the boxes get packed. That’s the Expat Money Assessment plus the Financial Relocation Roadmap — or begin with a free 20-minute Money Check.

This article is general information, not investment or tax advice. Take regulated advice for your situation.