Finding a US financial advisor in France who can genuinely serve your needs is one of the most underestimated challenges of expat life. Most Americans who move to France assume their existing advisor back home can continue managing their finances from across the Atlantic. After all, the accounts are still US accounts, the relationship is established, and it feels unnecessarily disruptive to change something that has been working. That assumption, however reasonable it feels, is one of the most expensive mistakes American expats make.

The problem is not that your US advisor is bad at their job. In all likelihood they are excellent at what they do, for clients who live in the United States. But the moment you establish French tax residency, a set of financial, regulatory, and legal dimensions enter your picture that the vast majority of US advisors have never encountered, were never trained for, and are not equipped to navigate. The investment products that work efficiently for a US resident may not be the same now that you are a French resident. The estate planning documents that protected your assets in the US may actively conflict with French succession law. The treaty provisions that determine how your retirement income is taxed are not general knowledge in the US advisory industry.

This guide explains the specific gaps that make domestic US advisors unsuitable for Americans living in France, what you should look for in a cross-border specialist, and how to build the right team of professionals around your financial life. Our US Citizens in France service page explains how we approach this from the financial planning and investment side.

The Regulatory Gap: Why Most US Advisors Cannot Legally Serve You in France

This is the most fundamental issue, and the one most often overlooked. Investment advisory is a regulated profession on both sides of the Atlantic, and the regulations in France and the US are largely separate systems that do not automatically recognize each other.

SEC Registration Does Not Grant French Practice Rights

A US-based investment advisor registered with the SEC is authorized to provide investment advice to clients in the United States. That registration does not, by itself, authorize them to provide investment advisory services to clients who are residents of France. France has its own regulatory framework, overseen by the Autorite des Marches Financiers (AMF), and providing investment advice on a professional basis to French residents generally requires authorization under French and European rules. An SEC-registered advisor who continues managing a French resident’s portfolio without appropriate authorization may be operating in a regulatory grey area, or, depending on the nature and frequency of the advisory relationship, in outright non-compliance with French regulations.

The MiFID II and PRIIPs Problem

European financial regulation adds another layer of complexity through MiFID II (the Markets in Financial Instruments Directive) and PRIIPs (Packaged Retail and Insurance-based Investment Products). Under these frameworks, investment products marketed to EU retail residents must provide standardized disclosures in a Key Information Document format. The vast majority of US-domiciled mutual funds and ETFs have not produced these documents, because they were designed for the US market and have no regulatory obligation to prepare them for the EU.

The practical consequence is that a French resident, including a US expat, cannot purchase many standard US investment funds through a European broker or platform. A US advisor who recommends these products without understanding this restriction is recommending something their client cannot actually buy through a compliant channel in France, and may be suggesting they continue holding products in a US account using a US address, which creates its own serious risks.

Using a US address to maintain the appearance of US residency for your brokerage account is a practice that custodians are increasingly identifying and acting on. The consequences range from trading restrictions to forced account liquidation. It is not a workaround. It is a liability that grows with every passing year.

The Knowledge Gap: What US Advisors Simply Do Not Know

Beyond the regulatory constraints, there is a deep knowledge gap between what a competent domestic US financial advisor knows and what an American in France actually needs. These are not obscure technicalities. They are the central planning issues of your financial life as an expat.

The France-US Tax Treaty

The France-US Income Tax Treaty governs how virtually every category of your US income is taxed once you become a French resident: Social Security, IRA distributions, 401(k) withdrawals, pension income, dividend income, and capital gains. The treaty’s provisions are nuanced, income-type-specific, and interact with French domestic tax law in ways that require genuine familiarity with both systems. The savings clause, which preserves the US’s right to tax its own citizens regardless of treaty provisions, means that the treaty rarely produces a simple outcome of tax in one country only.

Most US advisors have not read the France-US treaty. Most have never needed to. But for an American in France, applying the treaty correctly is not an optional refinement of your financial plan. It is the foundation on which every income and withdrawal decision rests.

PFIC Rules and the Investment Products That Become Toxic in France

One of the most damaging knowledge gaps involves Passive Foreign Investment Companies (PFICs). Under US tax law, non-US investment funds, including European ETFs, French unit trusts, and other non-US-domiciled pooled investment vehicles, are generally classified as PFICs and subject to punitive US tax treatment. The default PFIC tax regime taxes gains at the highest marginal income tax rate plus an interest charge, eliminating the benefits of capital gains rates and long-term holding. The result is that French investment products which seem entirely ordinary from a French perspective can become financial liabilities from a US perspective.

Conversely, US mutual funds that work perfectly well for a domestic US investor can trigger PRIIPs compliance restrictions for a French resident, as described above. A competent cross-border advisor understands which products are available and appropriate on each side of the Atlantic, and how to construct a portfolio that is efficient under both sets of rules. A domestic US advisor, working only with the US framework, has no visibility into the French side of this equation.

The Currency Discrepancy: Portfolio Allocation for Global Lives

US-based advisors typically build portfolios for clients who earn, save, and spend in dollars. For an expat spending in euros, this creates a significant and often unmanaged currency risk. A cross-border strategy must account for this mismatch to protect your local purchasing power and ensure that your asset allocation is resilient to exchange-rate volatility, rather than just being tax-efficient.

The IFI and Its Portfolio Implications

The French Impot sur la Fortune Immobiliere is a real estate wealth tax that applies once net taxable real estate exceeds EUR 1.3 million, with a retroactive calculation back to EUR 800,000. Financial assets are entirely excluded from the IFI base. This creates a direct portfolio structuring implication: a long-term France resident with a concentrated real estate position and no financial investment portfolio is paying IFI on an allocation that may not be optimal, when diversification into equities, bonds, and funds would both reduce the tax drag and potentially improve overall returns. A domestic US advisor has no visibility into this dimension.

Roth Conversions and the Pre-Residency Window

The pre-residency Roth conversion window is one of the most valuable planning opportunities available to Americans moving to France, and one of the most time-sensitive. Converting pre-tax IRA or 401(k) balances to Roth while still a US resident means the conversion is taxed at US federal rates only. Once French residency begins, a conversion may trigger French tax complications on the same income. Under Article 18 of the France-US Treaty, qualified Roth distributions are taxable only in the US, and since the US imposes no tax on qualified Roth withdrawals, this creates a genuinely tax-free income stream in France. The planning window closes on the day you land. Most US advisors have never modeled this for a client because most of their clients do not move abroad. Our guide on US Retirement Accounts When Moving to France covers the conversion strategy and treaty mechanics in full.

The Estate Planning Blind Spot

Estate planning is where the gap between a domestic US advisor and a genuine cross-border specialist is most consequential, because the mistakes are hardest to undo. A US advisor typically works with clients to ensure their will, trust, and beneficiary designations are correctly structured under US law. That is valuable work. But it leaves an American in France with half a plan.

French Succession Law and the Brussels IV Election

Without a Brussels IV election explicitly made in a French notarial will, French forced heirship rules apply to your worldwide estate by default once you are a French resident. French law reserves a mandatory share of your estate for your direct descendants, regardless of what your US will says. The Brussels IV election, introduced under EU Succession Regulation 650/2012, allows you to choose the law of your nationality to govern your estate instead. For a US citizen, this means choosing your home state’s law, which is far more flexible. Most US advisors have never heard of Brussels IV. Most US estate attorneys working on domestic cases have not needed to. But for an American in France, failing to make this election can distribute your estate in ways you would never have chosen.

US Trusts in a French Context

US revocable living trusts, widely used in domestic estate planning to avoid probate and provide asset management continuity, can produce disastrous outcomes in a French context. French civil law does not recognize the trust as a distinct legal entity in the way common law jurisdictions do. This can trigger double taxation on trust assets and income, collapse the entity separation the trust was designed to create, and expose assets to French inheritance tax and forced heirship rules in ways that were never intended. A domestic US advisor who designed your trust structure for a US-resident life has not accounted for any of this.

What Happens When Americans Use a Domestic US Advisor Anyway

We want to be straightforward here: many Americans in France do continue working with their domestic US advisor, often without realizing the gaps above exist. The consequences typically appear gradually, then all at once.

• Investment account restrictions: US custodians increasingly identify clients with foreign addresses and restrict their accounts. Accounts managed by a US advisor using a US address workaround face growing risk of trading freezes or forced closure as custodians tighten compliance.
• PFIC exposure accumulating silently: if a French resident holds non-US investment products recommended without PFIC awareness, the US tax liability grows each year the position is held, often only discovered when a tax preparer flags it at filing time.
• Treaty benefits missed or misapplied: without knowledge of the France-US treaty, a domestic advisor may sequence withdrawals in a way that creates avoidable French tax exposure or misses the treaty protection that would have applied. The withholding tax on distributions, the W-8BEN filing, the IRMAA surcharge from large withdrawal years: all of these require cross-border awareness to manage.
• Estate documents that conflict across jurisdictions: a US will and trust drafted without reference to French succession law may directly conflict with a French notarial will, creating legal uncertainty that falls on your beneficiaries to resolve at the worst possible moment.
• IFI exposure not modeled: a domestic advisor managing a portfolio with no visibility into IFI implications may maintain an allocation that is efficient in the US but tax-inefficient in France.

What to Look for in a US Financial Advisor in France

Finding a genuine US financial advisor in France means looking for a specific combination of credentials, registrations, and knowledge that is genuinely rare. The market is small, and the field contains advisors with a range of different strengths. Here is what actually matters.

Dual Registration or Regulatory Authorization

An advisor serving Americans in France should be registered with the SEC or FINRA to advise on US securities and accounts, and should also hold appropriate authorization under French or EU regulations to provide investment advice to French residents. You can verify US registration through FINRA BrokerCheck, which shows the advisor’s work history, credentials, and any complaints or regulatory actions. Harrison Brook USA is registered through Beacon Global Advisor Network, LLC (BGAN), a registered investment adviser with the SEC (CRD: 288833).

Demonstrated Treaty Fluency

Ask directly whether the advisor has worked with the France-US Income Tax Treaty’s retirement and pension articles, its treatment of Social Security and IRA distributions, and its interaction with the French tax return. This is not an obscure question. For an advisor genuinely specializing in this space, it is a routine part of client conversations. For a domestic US advisor, it will typically produce a pause.

PFIC-Aware Portfolio Construction

Ask whether the advisor accounts for PFIC rules when recommending investments and how they structure portfolios for clients who are French residents. The answer will quickly reveal whether they are working in both regulatory environments or only in the US framework.

Estate Planning Coordination Across Both Systems

A specialist in this space should be able to discuss Brussels IV, French succession law, the role of the notaire, and how US trusts need to be reviewed in a French context. They should also be able to work alongside a French notaire and a US estate attorney to coordinate documents rather than treating them as separate, unrelated tasks.

Expat-Specific Custodian Relationships

The advisor should work with custodians that explicitly support overseas US citizens, maintain accounts for French residents, and do not require a US address to service the account. This is a practical detail that separates advisors who genuinely serve the expat market from those who manage around it.

The Right Team: Financial Advisor, Tax Preparer, and Notaire

No single professional covers everything an American in France needs. The right structure is a team, with each member covering a distinct domain and communicating with the others.

Professional	Their Role	What They Do NOT Cover
Cross-border financial advisor	Investment strategy, portfolio structure, retirement income planning, currency risk, IFI-aware allocation	Tax return preparation, legal documents, notarial acts
US expat tax preparer (CPA)	US federal return, FBAR, Form 8938, treaty application on the return, PFIC reporting	Investment decisions, portfolio management, estate structuring
French tax adviser	French income tax return, Form 3916 disclosures, French wealth tax filing, CSG/CRDS	US filing obligations, US investment products, treaty application from the US side
French notaire	French will, Brussels IV election, property transactions, PACS, French succession	US estate documents, cross-border trust analysis, investment accounts
US estate attorney	US will, trust documents, beneficiary designations, US probate	French succession law, Brussels IV, French notarial process

The most common failure mode is not having one of these professionals at all, or having all of them working independently without anyone coordinating the overall picture. A cross-border financial advisor is typically best placed to hold the coordinating role, because the financial plan touches every other domain.

Frequently Asked Questions

Can my US advisor just continue managing my accounts if I give them a US address?

Some Americans have done this, and some custodians have overlooked it. The trend is firmly in the other direction. US custodians are increasingly identifying clients with foreign residency through FATCA reporting, cross-referencing, and direct disclosure requirements. The consequence of discovery ranges from trading restrictions to account liquidation with short notice. This is not a sustainable or compliant long-term arrangement, and the risk grows each year it continues.

Is a French financial advisor a substitute for a US financial advisor?

Not for most Americans in France. A French financial advisor typically operates within the French regulatory framework and knows French investment products, French tax rules, and French financial planning conventions. They are generally not equipped to advise on US retirement accounts, the France-US treaty’s application to US-sourced income, PFIC rules, Roth conversions, or Social Security optimization. What you need is an advisor who is genuinely fluent in both systems, not just one side of the equation.

How do I verify that a financial advisor is properly registered?

For US registration, use FINRA BrokerCheck to verify an advisor’s registration status, credentials, and any regulatory history. For French authorization, you can check the AMF’s REGAFI database for advisors authorized to operate in France. A genuinely cross-border advisor should be verifiable through both.

My US advisor says they can serve me in France. Should I believe them?

Ask them specifically: are they authorized to provide investment advisory services to French residents under French or European regulations? Do they understand the PFIC rules well enough to construct a portfolio for a French resident? Have they worked with the France-US treaty’s retirement and pension articles? Can they coordinate with a French notaire on estate planning? Answers to these questions will tell you far more than a general assurance that they can help.

Does Harrison Brook USA provide tax advice or prepare my returns?

No, and we want to be clear about that. We are a financial planning and investment advisory firm. We work on the investment structuring, retirement planning, income strategy, and cross-border portfolio management side. For tax return preparation, FBAR filing, and FATCA compliance, we recommend working with a qualified US expat CPA. For French tax filings, a French tax adviser. We work alongside both, coordinating the financial planning picture so that all three sets of advice fit together.

Ready to Work with a Financial Advisor Built for Life in France? Harrison Brook USA is registered in the US and works specifically with Americanswhose financial lives span the US and France. We focus on the investmentand financial planning layer, working alongside your tax preparer and notairerather than replacing them. Book a free initial consultation today.

Disclaimer: This article is for informational purposes only and does not constitute financial, tax, or legal advice. Regulatory requirements change frequently and vary by individual circumstance. Harrison Brook USA is a financial planning and investment advisory firm and does not provide tax preparation, tax advisory, legal, or notarial services. Please consult a qualified cross-border financial advisor, a US expat tax professional, and a French tax adviser for advice tailored to your individual situation.