Your final French tax return, and the loose ends that remain

Leaving France ends your residence on a date. It does not end your file with France, and the difference between the two is where people get caught.

The year you leave is split in two, exactly as the year you arrived was: a resident period taxed on worldwide income up to your departure date, and a non-resident period taxed only on French-source income from that date under article 164 B of the French tax code. Both halves are reported on the same return, filed the following spring in the ordinary way, and the departure date has to be documented rather than asserted, because it decides which income falls on which side of the split, including any bonus, share sale or dividend that lands close to it.

What continues after the final return

French-source income, chiefly rent from any property you keep, continues to be declared every year as a non-resident, indefinitely.
Exit tax, if it applies, generates its own continuing declaration for as long as any deferred tax remains outstanding.
French social security affiliation generally ends with residence, but pension rights already built up remain yours and are claimed later under the applicable coordination rules or bilateral agreement, from whichever country you are in when you retire.
Healthcare cover ends with residence-based affiliation; if you are moving within Europe, establish before departure what portable entitlement covers the transition, because it is far easier to arrange from France than after arriving.

The administrative threads people forget

A French address on file with the tax authority, a bank that assumes you are still resident, a French mobile number used for two-factor authentication on accounts you still hold: none of these are tax questions and all of them cause practical friction for years if left unchanged. Update your address with the tax authority at the point of departure, notify your French bank of your new residence status, since account terms and reporting differ for a non-resident, and keep a note of every French institution that still needs to hear from you.

What you keep, and what you file where

The general principle, once the sequence is understood, is straightforward: France keeps the right to tax what has a French source or a French location, indefinitely and regardless of your residence, while everything else moves to your new country of residence and the applicable treaty resolves any overlap. Property, French-source pensions and exit tax deferral are the threads that keep France in the picture longest. Everything that was only ever French because you were French-resident, notably worldwide investment income with no French source, drops away cleanly the day the split occurs.

The departure checklist

Fix and document the departure date. File the split-year return the following spring. Confirm whether exit tax applies and, if so, calendar the continuing declaration. Decide what happens to French property, rental or sold. Confirm your assurance-vie's non-resident treatment under the relevant treaty. Update your address with the tax authority and your bank. And establish your portable healthcare cover before you leave, not after.

Filing deadlines, the detail of the split-year computation and social security coordination rules are set by law and by international agreements that vary by country; none of the specifics is reproduced here. This page describes the general shape of a departure and is not personalised advice. The firm does not file returns or represent taxpayers before the administration and works alongside the professional who does.

Frequently asked questions

Do I file one return for the whole year I leave, or two?

One return, covering two periods within it. The year splits into a resident period taxed on worldwide income up to your departure date, and a non-resident period taxed only on French-source income under article 164 B of the French tax code from that date. Both are declared together on the return filed the following spring. The departure date itself must be documented, because it determines which income, including anything paid close to the transition, falls on which side of the split.

What still requires a French filing after I have completely left?

Anything with a French source or location, indefinitely. Rental income from French property is declared every year as long as you own it. Exit tax, if it applied, requires a continuing declaration for as long as any deferred amount remains outstanding. Neither of these is a transitional obligation that fades; both continue for as long as the underlying French asset does, regardless of how many years you have been gone or how many other countries you have since lived in.

Does my French social security affiliation just stop?

Affiliation generally ends with residence, but the pension rights you built up while affiliated do not disappear; they are claimed later, from wherever you are when you retire, under the coordination rules that apply within Europe or under the bilateral social security agreement between France and your new country where one exists. Healthcare cover based on residence ends as well, which is why establishing portable cover for the transition, before you leave, is worth doing rather than assuming it will sort itself out on arrival.

What administrative details do people forget when they leave?

The ones that are not tax questions at all. A French address left on file with the tax authority, a bank that still treats you as resident when your status has changed, a French phone number relied on for account security you can no longer easily access. None of these produce an immediate tax problem, and all of them produce friction for years afterwards. Update your address with the tax authority, notify your bank of your new residence status, and keep a short list of every French institution that still needs updating.

ÉTHIQUE ET PATRIMOINE, a French simplified joint-stock company (SAS), registered office at 41 rue Saint-Ferdinand, 75017 Paris, France, Paris Trade Register no. 803 414 796, VAT no. FR 40 803 414 796, registered with ORIAS under number no. 24001817 (www.orias.fr) — Financial investment adviser (CIF) no. 18002418, member of ANACOFI-CIF, a professional association approved by the Autorité des marchés financiers, and Anacofi-Courtage for its brokerage activity. Presence: Paris, Montpellier, Singapore, Hong Kong, Bangkok, Shanghai and Dubai.

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Written by Stéphane Molère, Président d'Éthique et Patrimoine — page last reviewed on 2026-08-30 — rules quoted are those in force at that date.