French tax residence under Article 4 B

French tax residence is determined from the facts under Article 4 B of the French tax code. Where another country also claims residence, the applicable treaty provides a separate sequence of tests.

Article 4 B of the French tax code treats you as having your tax home in France if your home or your main place of stay is in France, if you carry on a professional activity in France otherwise than as an ancillary occupation, or if the centre of your economic interests is in France. These grounds are alternatives, so meeting a single one is enough under domestic law, and no day count decides residence on its own.

A treaty can still change the result: the article itself provides that a person who meets one of them is not treated as resident where a double tax treaty does not regard them as resident of France. A separate rule covers certain public officials posted abroad. Days are relevant within the main-place-of-stay test, and a household that stays in France can establish the home test whatever the day count.

In short

Under Article 4 B of the French tax code, any one of these makes you a French tax resident under domestic law: a home in France or your main place of stay there; a professional activity in France that is not ancillary; or the centre of your economic interests in France. A treaty can still treat you as resident elsewhere, and a separate rule covers certain public officials posted abroad.
Days count only within the main-place-of-stay test, which the tax authorities’ guidance generally treats as met by a stay of more than six months in a year; a household that stays in France can keep you resident through the home test, whatever your own day count.
Remote work performed from France for a foreign employer is carried on in France, since the employer’s location does not move the work, and counts under the professional-activity test if it is not ancillary; the economic-interests test looks at where your investments are placed and where most of your income derives.
Where both countries treat you as resident, the relevant treaty’s residence article applies: many treaties examine permanent home, personal and economic ties, habitual residence and nationality in a specified sequence, and the wording is checked in the treaty itself.

Your home and your main place of stay

The first criterion looks at where you habitually live, in a residence of a permanent character. According to the tax authorities’ published guidance, that home stays in France while your family continues to live there, even if you work elsewhere for most of the year. The main place of stay is a separate ground: it looks at where you are personally and effectively present, which the tax authorities’ guidance generally reads as a stay of more than six months in a year, and it is where the day count enters.

Activity and economic interests

The second criterion catches professional activity carried on in France that is not ancillary, whether employed or self-employed. Remote work performed from France for a foreign employer is activity carried on in France; the employer’s location does not move the work.

The third looks at where your investments are placed, where your business assets are managed and from where the bulk of your income derives. Someone with no French home, no French days to speak of and a French-managed portfolio producing most of their income can still land inside article 4 B.

When two countries both claim you

If both countries treat you as resident under their domestic rules, read the residence article of the relevant treaty. Many treaties examine a permanent home, personal and economic ties, habitual residence and nationality in a specified sequence. The wording must be checked in the actual treaty; the criteria are not options from which you may choose.

The year of arrival, split in two

The residence date helps determine the French rules for the period before and after arrival, subject to the treaty. A salary payment, share sale and pension withdrawal can have different tax events, so the date cash reaches a bank account is not a universal test. Review each proposed transaction with its legal and payment dates.

What documents a residency date

The lease or deed and the date the household actually moved in. The employment contract and its start date. Utility contracts opened and closed. School registration for children. The date the previous residence was given up, evidenced by the equivalent step in the other country. Bank statements showing where daily spending happens. None of these is decisive alone, and the tax authorities weigh them together.

Residency is a factual question decided on evidence: a position the facts do not support can be challenged by the tax authorities, with interest and penalties. This page describes general criteria only. The tie-breaker wording differs between treaties, and the analysis of any individual situation requires reading the specific treaty text alongside the client’s own documents.

References cited

CGI, art. 4 B · French tax code, Article 4 B — Légifrance (version in force since 16 February 2025) · BOFiP, BOI-IR-CHAMP-10 — tax home: home, main place of stay, activity, economic interests (28 July 2016)

Frequently asked questions

Is it true that I become French resident after 183 days?

Not automatically, and not only through days. Article 4 B counts no days; the tax authorities’ guidance generally treats a stay of more than six months in a year as meeting the main-place-of-stay test. Staying fewer days does not keep you out if your home, a non-ancillary professional activity or the centre of your economic interests is in France. If another country also regards you as resident, its treaty with France decides.

I work remotely from France for a foreign employer. Am I resident?

Work physically performed in France is relevant to the professional-activity test even if the employer is abroad. The activity, other residence criteria and treaty must be considered together. There may also be French obligations for the employer, which should be reviewed with it.

My home country also says I am resident. Which one wins?

The applicable double tax treaty determines the outcome, through a tie-breaker applied in a fixed sequence: a permanent home available in one state only, then the centre of vital interests, then habitual abode, then nationality, then agreement between administrations. You move to the next criterion only when the previous one fails to decide. The exact wording varies between treaties, so the analysis has to be done on your treaty text rather than on the general model.

Why does the residence date matter?

It helps establish the rules applying before and after the move. The date must follow the facts and treaty, rather than a preferred tax outcome. For a particular sale or payment, its own tax event must then be identified; receiving the cash is not always the decisive date.

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, London, Singapore, Hong Kong, Bangkok, Shanghai and Dubai.

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