Investing as an American Abroad: The Complete Starter Guide

Moving abroad doesn’t pause your need to build wealth — but it does rewrite the rulebook. Americans overseas sit at the intersection of two tax systems and two regulatory regimes, and the standard advice from either side alone can hurt you. Here’s the whole picture in one place.

The three constraints that shape everything

1. The US taxes you on worldwide income, forever

Wherever you live, the IRS still cares about your dividends, interest and capital gains. Every investment decision abroad is also a US tax decision.

2. Foreign funds are PFICs

The single most expensive mistake in expat investing: buying non-US funds and triggering punitive US taxation. If you read only one other article, make it the PFIC trap.

3. US brokerages get nervous about foreign addresses

Some restrict or close expat accounts; a few genuinely welcome them. Your choice of brokerage is the foundation of the whole structure — details here.

The standard architecture that works

Most Americans abroad converge on the same sturdy setup:

• A US brokerage account at an expat-tolerant institution, holding US-domiciled ETFs for global diversification. This avoids PFICs entirely and keeps reporting simple.
• Retirement accounts (IRA/401k) left in place and growing — moving abroad rarely means cashing out; it usually means managing them from afar (what happens to your 401(k) and IRA).
• Local cash for local life — a European account for spending and emergencies (the two-country emergency fund), but not for investment products.
• A deliberate currency plan — because your assets are in dollars and your life is in euros (expat currency strategy).

The complications worth knowing by name

• PRIIPs: EU consumer rules can block EU residents from buying US ETFs on some platforms. Workarounds exist — explained here.
• Contribution rules: IRA and Roth contributions require US-taxable earned income — the Foreign Earned Income Exclusion can accidentally zero yours out (Roth IRA abroad).
• Your new country’s taxes: some countries tax investment gains differently (or more) than the US; treaties decide who bills first. This is where a cross-border professional pays for themselves.
• Estate quirks: beneficiary designations and wills interact awkwardly across borders (estate planning for expats).

What not to do

Don’t buy local funds because a local bank was friendly. Don’t cash out retirement accounts because moving felt like an ending. Don’t stop investing entirely out of confusion — the years out of the market cost more than the paperwork ever will. And don’t take portfolio advice from anyone who can’t say “PFIC” and “totalization agreement” in the same sentence.

Where to start

Map what you own and what breaks when you move — that’s the Expat Money Assessment. For the decisions that need regulated advice, we introduce vetted, fee-only fiduciaries who live and breathe expat portfolios: Trusted Advisor Matching.

This article is general information and education, not investment advice. Take regulated advice before acting.