You spend five months a year in your house in the Dordogne, keep a flat in London, work some weeks remotely from France and some from Britain, and your pensions are paid into a British bank account. A well-meaning neighbour tells you that you are safe as long as you stay under 183 days in France. Your accountant in London tells you the opposite: that you became French tax resident the day you bought the house. Both answers are wrong, and the gap between them is where the money is lost. Since Brexit, British citizens living partly in France are third-country nationals moving between two tax systems that each claim them with different tests, different calendars and different paperwork. France does not decide tax residence by counting days. It applies three alternative legal tests, and meeting any one of them is enough. Where both States claim the same person, the France-United Kingdom double tax treaty settles the conflict through a strict four-step cascade. And where the answer was declared wrongly, the French tax administration can look back three years \u2014 or ten, where a false foreign domicile is involved. This article explains, first, how France decides that a British citizen is its taxpayer and why the 183-day rule is a myth; secondly, how the treaty tie-breaker chooses between France and the United Kingdom and what a British resident must declare, prove and challenge once the answer is known.<\/p>\n
The starting point is simple and severe. Article 4 A of the General Tax Code<\/a> (Code g\u00e9n\u00e9ral des imp\u00f4ts<\/em>, the French tax code) provides: “Les personnes qui ont en France leur domicile fiscal sont passibles de l’imp\u00f4t sur le revenu en raison de l’ensemble de leurs revenus. Celles dont le domicile fiscal est situ\u00e9 hors de France sont passibles de cet imp\u00f4t en raison de leurs seuls revenus de source fran\u00e7aise.” In plain English: a person whose tax domicile (domicile fiscal<\/em>, the legal concept of tax residence) is in France pays French income tax (imp\u00f4t sur le revenu<\/em>) on worldwide income, while a person domiciled abroad pays only on French-source income. Everything therefore turns on the definition of the tax domicile, which is given by article 4 B of the same code<\/a>: “1. Sont consid\u00e9r\u00e9es comme ayant leur domicile fiscal en France au sens de l’article 4 A : a. Les personnes qui ont en France leur foyer ou le lieu de leur s\u00e9jour principal ; b. Celles qui exercent en France une activit\u00e9 professionnelle, salari\u00e9e ou non, \u00e0 moins qu’elles ne justifient que cette activit\u00e9 y est exerc\u00e9e \u00e0 titre accessoire ;” together with a third test, “c. Celles qui ont en France le centre de leurs int\u00e9r\u00eats \u00e9conomiques.” The statute adds a decisive closing sentence: a single test is enough, since “Les personnes qui satisfont \u00e0 l’un au moins des crit\u00e8res fix\u00e9s aux a \u00e0 c du pr\u00e9sent 1” are treated as French tax residents, subject only to the correction made by double tax treaties. For a British reader, the consequence is immediate: there is no day-count threshold in the French statute. The famous 183 days appear nowhere in article 4 B.<\/p>\n The first test turns on the foyer<\/em> \u2014 the home, meaning the place where the person ordinarily lives and centres private life \u2014 or, failing that, on the place of the main stay (s\u00e9jour principal<\/em>). The administrative court of appeal of Paris gave the definition that practitioners still use. For an unmarried taxpayer without dependants, “le foyer d’un contribuable c\u00e9libataire, sans charge de famille, s’entend du lieu o\u00f9 il habite normalement et a le centre de sa vie personnelle, sans qu’il soit tenu compte des s\u00e9jours effectu\u00e9s temporairement ailleurs en raison des n\u00e9cessit\u00e9s de la profession ou de circonstances exceptionnelles. Le lieu du s\u00e9jour principal de ce contribuable ne peut d\u00e9terminer son domicile fiscal que dans l’hypoth\u00e8se o\u00f9 il ne dispose pas de foyer en France.” That passage comes from the judgment of the Cour administrative d’appel de Paris of 20 October 2023, 22PA00816<\/a>, and it deserves to be read slowly, because it destroys the calendar method in one stroke. The foyer<\/em> is where the person normally lives and has the centre of personal life; temporary stays elsewhere for work or exceptional circumstances do not count; and the fallback test of the main stay only applies where there is no foyer<\/em> in France at all.<\/p>\n The facts of that case are a warning to every Briton who splits the year. The taxpayer argued that his tax domicile was in Israel because he could show 201 days there against 164 days in France. The court was unimpressed. As the Paris judgment of 20 October 2023, 22PA00816<\/a> records: “bien qu’il ait r\u00e9sid\u00e9, en 2015, 164 jours en France \u00e0 comparer \u00e0 201 jours en Isra\u00ebl”, the taxpayer kept in Paris a habitual residence with every mark of permanence. He employed a live-in housekeeper all year, as the wage slips in the file proved; he received his post at the Paris address with no redirection order; the electricity and gas consumption matched a normal occupation; he had lent nothing to family or friends during his absences; he had put a house near Paris at the free disposal of his former partner and their daughter, revealing close personal ties; and he ran his everyday spending and received his retirement pensions through several French bank accounts. The court concluded that he had in France “le centre de ses int\u00e9r\u00eats personnels”, the place “o\u00f9 il habitait normalement”, and therefore his foyer<\/em> within the meaning of article 4 B. Translate that into a British life: a house in France that is kept available year-round, furnished, heated, insured, with post arriving, bills in your name, a cleaner or gardener on standing arrangement, children or a partner nearby, and bank accounts paying the running costs \u2014 that bundle is a foyer<\/em>, even if the spreadsheet shows fewer than 183 nights. Conversely, a lock-up-and-leave second home visited for six weeks in summer, with no personal infrastructure around it, points the other way. The tax office (service des imp\u00f4ts<\/em>) reasons in bundles of evidence, never in nights.<\/p>\n Two practical lessons follow. First, keep the evidence of where life is actually centred, in both countries, year by year: tenancy agreements or title deeds, utility bills, council tax and taxe fonci\u00e8re<\/em> demands, travel records, school and medical registrations, club and church memberships, and bank statements showing where daily spending happens. These are the documents the courts weigh. Second, run the British test separately and honestly. The United Kingdom applies its own Statutory Residence Test, set out in HMRC guidance RDR3, built on automatic overseas tests, automatic United Kingdom tests and a sufficient-ties test, with its own day-counting and connecting-factor rules explained on GOV.UK<\/a>. Passing the British test does not fail the French one, and failing the British test does not pass the French one. Each State applies its own statute first; only afterwards does the treaty intervene. A British citizen can therefore be resident under both statutes at once \u2014 the exact situation the tie-breaker exists to resolve, as the second part of this article explains.<\/p>\n The second and third French tests catch taxpayers whom the home test might miss. Under article 4 B, a person who carries on a professional activity in France, employed or self-employed, is French tax resident unless the activity is merely ancillary (\u00e0 titre accessoire<\/em>). A British consultant who works three days a week from a study in Bordeaux for British clients is carrying on an activity in France; the clients’ location does not move the workplace. A director whose company board meets and decides in France, a tradesperson taking French jobs, a landlord running a furnished-letting business from France \u2014 all of these are professional footprints. The statute also deems certain senior executives of large French companies to work principally in France. What saves the taxpayer is proof that the French activity is genuinely secondary: occasional, marginal in time and income beside a real activity abroad. That proof must be documented \u2014 contracts, timesheets, travel logs, board minutes \u2014 because the administration presumes nothing in the taxpayer’s favour.<\/p>\n The third test, the centre of economic interests (centre des int\u00e9r\u00eats \u00e9conomiques<\/em>), looks at money rather than presence. Investments managed from France, French rental portfolios, shareholdings in French companies, French bank balances funding daily life, a French-regulated pension arrangement receiving contributions: each of these pulls the centre of gravity toward France. The case law treats the test as qualitative, not arithmetic. A British retiree who lives modestly in France but keeps a seven-figure portfolio managed by a London discretionary manager, with income swept to Britain and only living expenses transferred over, has a serious argument that the economic centre stayed in Britain \u2014 but the argument must be made with papers, and it collapses the moment the French accounts show the pensions being received and spent in France, as the Paris court noted in the 2023 judgment. The three tests are alternative, and the administration needs only one. A taxpayer who defeats the foyer<\/em> test on day-counts can still lose on the economic centre, and a taxpayer who defeats both can still lose on professional activity.<\/p>\n What residence costs \u2014 or saves \u2014 depends on which side of the line the taxpayer falls. A French tax resident is taxable on worldwide income under article 4 A, with treaty relief where the treaty gives the taxing right to Britain. A non-resident is taxable only on French-source income, listed by article 164 B of the General Tax Code<\/a>: “I. Sont consid\u00e9r\u00e9s comme revenus de source fran\u00e7aise : a. Les revenus d’immeubles sis en France ou de droits relatifs \u00e0 ces immeubles ; b. Les revenus de valeurs mobili\u00e8res fran\u00e7aises et de tous autres capitaux mobiliers plac\u00e9s en France ;” with professional income following at paragraph d, “d. Les revenus tir\u00e9s d’activit\u00e9s professionnelles, salari\u00e9es ou non, exerc\u00e9es en France ou d’op\u00e9rations de caract\u00e8re lucratif au sens de l’ article 92 et r\u00e9alis\u00e9es en France”. French rents, French dividends and French salaries therefore stay taxable in France even for a British non-resident, each under its own withholding or assessment machinery. A further provision widens the net where treaties attribute income to France: article 4 bis of the General Tax Code<\/a> makes taxable “2\u00b0 Les personnes de nationalit\u00e9 fran\u00e7aise ou \u00e9trang\u00e8re, ayant ou non leur domicile fiscal en France, qui recueillent des b\u00e9n\u00e9fices ou revenus dont l’imposition est attribu\u00e9e \u00e0 la France par une convention internationale relative aux doubles impositions.” In treaty language, attribution follows residence; in French collection language, the treaty can designate France to tax even a person domiciled abroad.<\/p>\n The Conseil d’\u00c9tat added an important qualification for mobile British professionals in its decision of 11 April 2018, 410041<\/a>. A consultant paid by a French company, invoicing in euros and cashing the fees into a French bank account, looks at first glance like the textbook case of French-source professional income. The court annulled the assessment, holding that none of those payment details proved where the services were actually performed: “En d\u00e9duisant de ces \u00e9l\u00e9ments, qui n’\u00e9taient pas par eux-m\u00eames de nature \u00e0 \u00e9tablir que les prestations factur\u00e9es par M. B…\u00e0 la soci\u00e9t\u00e9 SDDI avaient \u00e9t\u00e9 r\u00e9alis\u00e9es en France, que les versements correspondants devaient \u00eatre consid\u00e9r\u00e9s comme des revenus de source fran\u00e7aise en application du d du I de l’article 164 B du code g\u00e9n\u00e9ral des imp\u00f4ts, la cour a inexactement qualifi\u00e9 les faits de l’esp\u00e8ce.” Being paid from France into France is not the same as working in France. For the British consultant splitting weeks between London and Lyon, the lesson is precise: the source of service income follows the place of performance, and the taxpayer who can evidence where each block of work was done \u2014 contracts allocating days, travel records, site logs \u2014 controls the qualification. The same logic protects the British landlord whose rents are plainly French-source and the British shareholder whose French dividends carry their own withholding machinery, each already explained in our guides to British dividends taxed in France<\/a> and to selling a French house as a British owner<\/a>.<\/p>\n Dual residence is not a paradox; it is the normal result of two domestic statutes applied in parallel. A British citizen with a house in each country, family in both, income from both and 150 nights in each will typically satisfy article 4 B in France and the Statutory Residence Test in Britain. Neither answer cancels the other. The conflict is settled by the double tax treaty signed in London on 19 June 2008 and published in France by decree n\u00b0 2010-20 of 7 January 2010, whose consolidated text is maintained by the French tax administration on impots.gouv.fr<\/a>. Its article 4, headed Residence (R\u00e9sidence<\/em>), first confirms that each State applies its own law: treaty residence follows domestic liability to tax by reason of domicile, residence, place of management, place of registration or any similar criterion. Only where an individual ends up resident in both contracting States does the cascade operate, and it operates in a strict order \u2014 each step is examined only if the previous one draws.<\/p>\n The first step asks where the person has a permanent home (foyer d’habitation permanent<\/em>): residence follows the State where such a home is kept, and where there is one in each State, it follows the State of closest personal and economic ties (the centre of vital interests, or centre des int\u00e9r\u00eats vitaux<\/em>). A permanent home means a dwelling kept continuously available \u2014 owned or durably rented, furnished, lived in as a matter of course \u2014 as opposed to a hotel room, a short let or a room borrowed for visits. The British taxpayer who owns a house in France lived in for months and rents a room in a friend’s London flat for flying visits has one permanent home, in France, and the cascade stops there: France wins. The taxpayer with a fully kept home in each country moves to the parenthetical test, the centre of vital interests (centre des int\u00e9r\u00eats vitaux<\/em>): with which State are personal and economic ties closest? Here the courts weigh the whole bundle \u2014 spouse and children, social life, doctors and schools, where the money is earned, managed and spent, where the pensions land. It is the same bundle as under article 4 B, now used comparatively rather than absolutely. The Paris judgment of October 2023 illustrates the method even though it applied a different treaty: personal ties concentrated in France, bank accounts receiving pensions and funding daily life in France, no family ties shown in the other State \u2014 the centre of vital interests followed the same country as the foyer<\/em>.<\/p>\n If the closest-ties test cannot decide, or where there is a permanent home in neither State, the second step looks at habitual stay (s\u00e9jour habituel<\/em>): residence follows the State of habitual presence. Only here does day-counting enter, and it enters as a subsidiary test, not as the rule. The third step looks at nationality: habitual presence in both States, or in neither, sends residence to the State of nationality. A British-only national who reaches this step is attributed to the United Kingdom; a dual French-British national is not decided by this step at all. The final step is mutual agreement: nationality of both States, or of neither, sends the question to the competent authorities of the two States to settle together \u2014 a slow procedure in which a well-documented file is the only leverage a taxpayer has.<\/p>\n The order of operations matters as much as the substance, and the courts enforce it. The method is the one the Paris court recalled in its 2023 judgment<\/a>: “il incombe au juge de l’imp\u00f4t, lorsqu’il est saisi d’une contestation relative \u00e0 une telle convention, de se placer d’abord au regard de la loi fiscale nationale pour rechercher si, \u00e0 ce titre, l’imposition contest\u00e9e a \u00e9t\u00e9 valablement \u00e9tablie”, examining domestic law first, and only afterwards, “en rapprochant cette qualification des stipulations de la convention, de d\u00e9terminer – en fonction des moyens invoqu\u00e9s devant lui ou m\u00eame, s’agissant de d\u00e9terminer le champ d’application de la loi, d’office – si cette convention fait ou non obstacle \u00e0 l’application de la loi fiscale.” A treaty cannot create a French tax charge; it can only remove or limit one that domestic law validly imposed, or confirm the other State’s exclusive right. For the British taxpayer this means the file must be built twice: first, the domestic position under article 4 B with its evidence bundle; secondly, the treaty cascade with its comparative bundle. The most common error in British files is to start from the treaty and argue nationality or day-counts, skipping the permanent-home and vital-interests steps that the treaty itself puts first. The administration, and after it the judge, will walk the cascade in order whether the taxpayer does or not.<\/p>\n Once the residence answer is known, it must be declared \u2014 and the declaration duties differ sharply between the two outcomes. Every person liable to French income tax must file: article 170 of the General Tax Code<\/a> provides that “En vue de l’\u00e9tablissement de l’imp\u00f4t sur le revenu, toute personne imposable audit imp\u00f4t est tenue de souscrire et de faire parvenir \u00e0 l’administration une d\u00e9claration d\u00e9taill\u00e9e de ses revenus et b\u00e9n\u00e9fices, de ses charges de famille et des autres \u00e9l\u00e9ments n\u00e9cessaires au calcul de l’imp\u00f4t sur le revenu”. The French tax household (foyer fiscal<\/em>, the unit of joint taxation for spouses and dependants) files one joint return covering worldwide income where the household is French resident, and covering French-source income only where it is not. Arrival and departure years are split in practice: the administration taxes according to the residence position for each year, and the treaty cascade is applied year by year, because nothing prevents a taxpayer from being French resident one year and British resident the next as homes, work and family move. The English-language pages of service-public.fr<\/a> and the non-resident pages of impots.gouv.fr<\/a> set out the filing mechanics, but they do not decide the residence question \u2014 the statute and the evidence do.<\/p>\n British-source income declared by a French resident follows the treaty’s distributive rules, each with its own declaration line and its own credit machinery: British pensions, British dividends, British interest and British rental income each have a treaty article allocating the taxing right and a French form reporting the foreign tax paid for credit. Our companion guides walk through the two most litigated items \u2014 the declaration of British bank accounts on form n\u00b03916<\/a> and its \u20ac1,500-per-account penalty, and the credit mechanism for British dividends received by a French resident<\/a>. The point of principle is wider: every foreign item must appear on the French return with the treaty article identified, the gross amount converted, the British tax stated and the credit claimed. An item omitted from the return is not merely a missed credit; it is undeclared income, and undeclared income extends the administration’s reach in time.<\/p>\n Time is the administration’s weapon, and the taxpayer’s calendar must be longer than the three years most people assume. Article L. 169 of the Book of Tax Procedures<\/a> (Livre des proc\u00e9dures fiscales<\/em>, the code of tax procedure) states the ordinary rule: “Pour l’imp\u00f4t sur le revenu et l’imp\u00f4t sur les soci\u00e9t\u00e9s, le droit de reprise de l’administration des imp\u00f4ts s’exerce jusqu’\u00e0 la fin de la troisi\u00e8me ann\u00e9e qui suit celle au titre de laquelle l’imposition est due.” The recovery right (droit de reprise<\/em>, the power to reassess) therefore normally expires at the end of the third year after the tax year. But the same article extends the period to ten years in defined cases, including this one: “le droit de reprise de l’administration s’exerce jusqu’\u00e0 la fin de la dixi\u00e8me ann\u00e9e qui suit celle au titre de laquelle l’imposition est due lorsqu’une personne physique se pr\u00e9vaut d’une fausse domiciliation fiscale \u00e0 l’\u00e9tranger.” A British taxpayer who filed as a British non-resident \u2014 or who filed nothing in France at all \u2014 while keeping a French foyer<\/em>, and who is later shown to have claimed a false foreign domicile (fausse domiciliation fiscale \u00e0 l’\u00e9tranger<\/em>), faces reassessment across a decade of income. The extension applies only to income never shown in any timely return, so the taxpayer who declared everything, even under the wrong residence label, is in a materially better position than the taxpayer who omitted. The lesson is blunt: a wrong residence position taken transparently is a dispute; a residence position hidden by omission is a ten-year exposure.<\/p>\n The paper trail is therefore the real subject of this article. For each year, keep the documents that prove where the permanent home was and where vital interests lay: title deeds and leases for each dwelling with utility bills in your name; electricity, gas and water consumption records; home insurance schedules; post records and any redirection orders; travel records showing presence \u2014 flight and ferry bookings, passport stamps where they exist, toll and fuel records; children’s school certificates and medical registrations; employment contracts, assignment letters and timesheets allocating workdays by country; pension payment advices showing the receiving account; and complete bank statements for French and British accounts showing where income lands and where life is paid for. Where the position is genuinely doubtful \u2014 the classic case being the first full year after the move, or a year split around a sale, a retirement or a bereavement \u2014 put the analysis in writing before filing: a dated residence memorandum setting out the article 4 B tests, the treaty cascade and the conclusion, kept with the return. If the administration disagrees, the challenge follows the French procedural ladder: discussion with the local office, a reassessment proposal (proposition de rectification<\/em>) to which the taxpayer replies with observations, then a formal complaint (r\u00e9clamation contentieuse<\/em>) and, if needed, the administrative court (tribunal administratif<\/em>). At every rung, the taxpayer who filed completely, labelled the treaty articles and kept the bundle negotiates from strength; the taxpayer who guessed in silence starts two steps behind.<\/p>\n France does not ask how many nights a British citizen slept within its borders. It asks where the home is, where the main stay falls, where the work is done and where the money is centred \u2014 and one affirmative answer under article 4 B makes a French tax resident of the taxpayer, taxable on worldwide income under article 4 A. Britain asks its own different questions under its own Statutory Residence Test. Where both answers are yes, the France-United Kingdom treaty’s article 4 decides in a fixed order: permanent home first, then closest personal and economic ties, then habitual stay, then nationality, then agreement between the two administrations. Day-counting matters only deep inside that cascade, never at the door. The practical consequences follow the same order: establish the domestic position, walk the cascade honestly, declare every item with its treaty article, and keep the evidence bundle that proves each step. The cost of getting it wrong is not theoretical \u2014 three years of reassessment as standard, ten where a false foreign domicile was claimed \u2014 and the cost of getting it right is paperwork. For the British household settling in France after Brexit, residence is not a feeling and not a spreadsheet; it is a file. Build it before the tax office asks for it.<\/p>\n Telephone consultation within 48 hours with a lawyer from the firm. We can review where your tax residence really lies, walk the France-United Kingdom treaty cascade on your facts and check your French returns before the tax office writes first. Call Ma\u00eetre Reda Kohen at +33 6 46 60 58 22<\/a>. Contact the firm<\/a>.<\/p>\n Source : Cour de cassation \u2013 Base Open Data \u00ab Judilibre \u00bb & \u00ab L\u00e9gifrance \u00bb.<\/p>\n","protected":false},"excerpt":{"rendered":" French tax resident or not? Why the 183-day rule is a myth, how article 4 B and the France-UK treaty tie-breaker really decide, and the ten-year risk of a wrong call.<\/p>\n","protected":false},"author":251031309,"featured_media":16296,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kj_source_type":"","_kj_official_id":"","_kj_official_url":"","_kj_judilibre_id":"","_kj_jur":"","_kj_lieu":"","_kj_chambre":"","_kj_rg":"","_kj_date":"","activitypub_content_warning":"","activitypub_content_visibility":"","activitypub_max_image_attachments":4,"activitypub_interaction_policy_quote":"anyone","activitypub_status":"federated","footnotes":""},"categories":[80312,80314],"tags":[],"class_list":["post-2122711","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-british-desk","category-decryptage"],"yoast_head":"\nB. Your work and your money in France: professional activity and the centre of economic interests<\/h3>\n
II. Claimed by both countries? How the France-United Kingdom treaty tie-breaker chooses, and what to file once it has spoken<\/h2>\n
A. The four-step cascade: permanent home, closest ties, habitual stay, nationality<\/h3>\n
B. Declaring, proving and challenging: returns, the paper trail and the ten-year risk<\/h3>\n
Conclusion<\/h2>\n
Need a quick opinion on your case<\/h2>\n