Every year, tens of thousands of French citizens choose to expatriate. The reasons are varied: career opportunities, quality of life, adventure… and often, taxation. But leaving France doesn't automatically mean you stop paying taxes. The reality is far more complex.
This guide is your complete reference on expatriation and taxes. We cover everything: tax residency, bilateral treaties, exit tax, mandatory declarations, social security, and strategies to optimize your departure. Whether you're targeting Portugal, Dubai, Romania, or another destination, the principles are the same.
1. Tax Residency: The Key Concept
First and foremost, you need to understand a fundamental concept: it's not your place of living that determines where you pay taxes, it's your tax residency.
The 4 French Criteria (Article 4 B CGI)
You are considered a French tax resident if you meet at least one of these criteria:
- Household: your spouse, partner, or minor children live in France
- Primary stay: you spend more than 183 days per year in France
- Main professional activity: you carry out your main activity in France (employee or self-employed)
- Center of economic interests: your main investments, income, or assets are in France
Just one of these 4 criteria is enough to remain taxable in France on your worldwide income. This is the number 1 trap of tax expatriation.
How to Properly Break Tax Residency
- Transfer your family household to the new country
- Spend fewer than 183 days in France (keep a travel log)
- Carry out your activity from the host country
- Move your main bank accounts and investments
- Cancel or suspend anything tying you to France (lease, subscriptions…)
2. Bilateral Tax Treaties
France has signed tax treaties with over 120 countries. These agreements define which country has the right to tax each type of income, to avoid double taxation.
How It Works
Each treaty assigns taxation rights based on income type:
- Salaries: generally taxed where work is performed
- Private pensions: taxed in the country of residence
- Public pensions: taxed in France (in most treaties)
- Real estate income: taxed where the property is located
- Dividends: withholding tax in the source country, with a cap (often 15%)
- Securities capital gains: generally taxed in the country of residence
The Tax Credit
When income is taxed in both countries, the treaty provides a tax credit: you deduct the tax paid in one country from what's owed in the other. Result: you never pay twice.
Warning: treaties don't apply automatically. You must invoke them in your declarations and sometimes complete specific forms to benefit.
3. The Exit Tax: What You Really Need to Know
The exit tax is scary, but it affects far fewer people than commonly believed. In summary:
- It only applies if you hold shareholdings > €800,000 or > 50% of a company
- Real estate, life insurance, and PEA accounts are not affected
- A payment deferral is automatic to the EU (on request outside EU)
- The exit tax is cancelled after 2 years (EU) or 5 years (non-EU) if you keep your securities
For full details, read our complete exit tax guide.
4. Mandatory Declarations in the Year of Departure
In the year of your expatriation, you must file several declarations with French tax authorities:
Form 2042 (Income Until Departure)
Your standard income tax return, covering the period from January 1 to your departure date. All your worldwide income during this period is declared.
Form 2042-NR (Income After Departure)
For French-source income earned after departure: French rental income, public pensions, income from activity performed in France… You are now taxed as a non-resident.
Form 2074-ETD (Exit Tax)
Only if you're subject to the exit tax (shareholdings > €800,000 or > 50%). Details your unrealized gains and deferral request.
Inform your tax center of your departure by mail or via your online space on impots.gouv.fr. Failure to declare can result in penalties.
5. Social Security and Social Protection
Leaving France also means leaving the French social protection system. Here are your options:
Within the EU/EEA: Secondment or Local Affiliation
- Secondment (max 2 years): you remain affiliated with the French system, your employer continues contributing in France
- Local affiliation: you contribute in the host country and benefit from its healthcare system
- The European Health Insurance Card (EHIC) covers temporary care within the EU
Outside EU: CFE or Private Insurance
- CFE (Caisse des Français de l'Étranger): maintains your French coverage. Contribution: ~€200-400/month depending on age and plan
- International health insurance: private companies (Allianz, AXA, Cigna…) from ~€100-300/month
- Some countries offer public healthcare accessible to residents (Portugal, Spain, Thailand…)
Retirement: Don't Lose Your Quarters
- Years abroad don't count toward French retirement (unless you contribute voluntarily)
- You can contribute voluntarily to CFE retirement to maintain your rights
- Countries with a bilateral social security agreement allow combining quarters
6. Bank Accounts and Reporting Obligations
As a French expat, you must know these obligations:
Foreign Account Declaration
Every bank account opened abroad must be declared annually to French tax authorities (form 3916). Failure to declare incurs a fine of €1,500 per undeclared account (€10,000 in non-cooperative countries).
Your French Accounts
You can keep your French bank accounts after expatriation. Notify your bank of your tax residency change — they will adjust withholding tax on your interest and dividends.
7. Most Popular Tax Destinations
Here's a quick comparison of French expats' favorite destinations:
- Portugal: progressive tax 12.5-48%, IFICI regime at 20% for 10 years, low cost of living. Read our Portugal guide
- Dubai: 0% income tax, 9% CT, high cost of living. Read our Dubai guide
- Romania: 10% flat tax, 1% micro-enterprise, very low cost of living. Read our Romania guide
- Estonia: 0% on undistributed profits, e-Residency, 100% digital
- Malta: 6/7 CT refund, 5% effective for companies
- Andorra: 10% flat tax, 10% CT, geographic proximity to France
- Hong Kong: territorial taxation, max 17% on local income. Read our Hong Kong guide
Each destination has pros and cons depending on your profile. Take the Fiscalia quiz for a personalized recommendation.
8. Departure Checklist: Key Steps
Here's the complete list of actions for a successful tax expatriation:
- 6 months before: consult a tax lawyer, choose your destination, assess exit tax exposure
- 3 months before: obtain visa, open a bank account in the host country, find accommodation
- Departure day: note the exact date (it counts for the 183-day calculation)
- Within the month: register with local tax administration, register with the French consulate
- Before tax filing: submit forms 2042, 2042-NR, and 2074-ETD (if applicable)
- Every year: declare foreign accounts (3916), declare French-source income, maintain proof of residence abroad
9. The 5 Fatal Mistakes
- Leaving without breaking tax residency: keeping your household in France = remaining taxable in France
- Ignoring tax treaties: without invoking them, you risk double taxation
- Forgetting declarations: forms 2042-NR and 3916 remain mandatory after departure
- Underestimating cost of living: a 0% tax country with high cost of living can cost more than a 20% country with low cost of living
- Not planning social security: an accident or serious illness without coverage can be financially catastrophic
To dive deeper into these mistakes, read our dedicated article: 5 tax mistakes to avoid when expatriating.
FAQ
Is it legal to expatriate to pay less tax?
Yes, it's perfectly legal. Tax optimization through choice of residence is a fundamental right, recognized by France's Conseil d'État. What's illegal is tax fraud: pretending to live abroad while actually remaining in France, or concealing income.
How long must I stay outside France to stop paying taxes?
There's no magic duration. The 183-day rule is one of 4 criteria, but just one suffices. If your family stays in France or your economic interests are there, you remain taxable even spending 364 days abroad. It requires a real and complete transfer.
Do I need to keep filing a tax return in France after leaving?
Yes, if you have French-source income (rentals, public pensions, activity in France). You file via form 2042-NR as a non-resident. Additionally, you must declare your foreign bank accounts annually (form 3916).
Is double taxation common?
No, thanks to France's 120+ tax treaties. But it can occur if you don't invoke them correctly or if your host country has no treaty with France. In that case, consult a specialist.
What budget should I plan for a tax lawyer?
Expect €1,000 to €5,000 for a comprehensive departure tax assessment. This includes analysis of your situation, risk identification (exit tax, tax residency), and structuring recommendations. It's a worthwhile investment for any expatriation involving significant assets.