Investing for US Citizens in France: Tax Treaty Benefits & The PFIC Trap

For those that have followed my writings for a while, you already know my golden rule of investing: I hate paying fees.

I am a staunch advocate for keeping more of your own money. Consequently, I invest mostly in low-cost index funds, utilizing either mutual funds or ETFs to capture market growth without dragging down returns through high expense ratios.

However, the strategy that works perfectly in the United States often hits a brick wall when I speak to US citizens living in France. Many of these expats have concerns about their retirement savings. Some have even transferred their nest egg to France, hoping to simplify their lives by holding assets in Euros, only to come to the harsh realization that index funds in France carry unique—and often punitive—tax implications for US citizens.

If you are a US citizen living in France, or planning a move there, here is what you need to know about the tug-of-war between the US-France Tax Treaty and European investment regulations.

The Good News: The US-France Tax Treaty

Before we get to the complications, let’s look at the silver lining. Generally speaking, the tax landscape between these two nations is actually quite favorable for American expats—provided your assets stay on American soil.

The USA-France Tax Treaty is designed to prevent double taxation. It provides a tax credit equivalent to the French taxes due on US-sourced interest, investment capital gains, and dividends.

Why is this advantageous

It makes keeping your investments in the USA very attractive. By maintaining your portfolio in US-based brokerage accounts, you can continue to utilize the low-cost index funds you love, while the treaty works to ensure you aren't paying tax on that growth to both Uncle Sam and the French treasury.

The Trap: What is a PFIC?

Despite the advantages of the tax treaty, some individuals still feel the urge to move their investments to France to hold them in Euros. This is where the "low-cost" strategy falls apart.

The United States IRS classifies non-US mutual funds and ETFs (investments domiciled outside the US) as PFICs (Passive Foreign Investment Companies).

If you hold a French or European mutual fund or ETF, you are holding a PFIC. This presents a massive challenge when filing your US tax returns.

1. Taxing Unrealized Gains: The US tax code treats PFICs harshly. The US may tax PFICs on unrealized gains (growth in value even if you haven’t sold the asset).

2. The Mismatch: Conversely, countries like France typically only tax these investments upon sale (realized gains).

This creates a disastrous tax mismatch. You could owe taxes to the US on money you haven't actually pocketed yet, while receiving no credit in France because no French tax event has occurred. It destroys the efficiency of compound interest and creates a tax reporting nightmare.

I have seen online tax and investment advisors highlighting that this isn't that bad... Do not believe them. They are selling you their "Wealth Management" or "Tax" advice and the more complex your situation, the more fees for them.

The Regulatory Blockade: Why You Can’t Buy US ETFs in Europe

"Fine," you might say. "I will live in France, open a French brokerage account, but I will just buy my favorite US-based ETFs like VOO or SPY to avoid the PFIC issue."

Unfortunately, European regulators have closed that door.

Due to a regulation known as PRIIPs (Packaged Retail and Insurance-based Investment Products), investment products sold to EU residents must provide a Key Information Document (KID) in the local language with specific formatting and disclosures.

The Reporting Disconnect:

The reporting rules for mutual funds are fundamentally different in Europe than in the United States. US-based mutual funds and ETFs do not meet these EU reporting requirements. Because US fund providers generally do not produce the specific documentation required by EU law, European brokerages will not allow you to purchase USA-based mutual funds or ETFs if you are an EU resident.

Even your US brokerage will no longer sell you US based ETFs or Mutual funds if you are a European resident due to EU reporting requirements.

The Bottom Line

For the US citizen in France, the path of least resistance—and usually the path of lowest fees—is often to leave your investments domiciled in the United States.

By moving your capital to France, you risk entering the PFIC tax regime, which can decimate your returns through taxation on unrealized gains.

As always, the key to successful investing is keeping costs low and tax efficiency high. For expats in France, that usually means keeping your nest egg across the Atlantic.

If you have questions or concerns on budgeting and personal finance, feel free to reach out to me at mybestmoneylife@gmail.com

Disclaimer: This article is for educational purposes only and not financial advice. I am an investor and writer, not a certified tax professional or financial advisor. Cross-border taxation is highly complex. Please consult with a qualified tax advisor specializing in US-France treaties before making investment decisions.