You are British, you live in France, and every working morning you open a laptop in Lyon, Bordeaux or a Dordogne village to work for an employer based in London, Manchester or Edinburgh. Since Brexit, this everyday situation sits across three French systems at once, and each one judges you by its own test. The préfecture, the local office of the French State that issues residence permits, asks whether a British citizen may live in France and work here at all. The French tax office asks where your salary is taxable when your body is in France and your payroll is in Britain. The social-security network — the URSSAF, the body that collects social contributions, and the CPAM, your local health-insurance fund — asks which country covers you and who must pay the contributions. Get any of the three answers wrong and the consequences are concrete: a refused visa or residence permit, a French tax bill on top of British PAYE deductions, an URSSAF reassessment (redressement) against your employer, or a CPAM refusal to open your health rights. This article gives the complete method: which visa and residence permit fits a British remote worker, what to do when the préfecture says no, why France will usually tax the whole salary under the France-UK double tax treaty, why French social security applies from the first day worked in France even if the employer has no French office, and how to challenge each refusal or bill within the time limits. Every decisive statement below is tied to the exact statutory text or court decision quoted beside it.
I. Can a British Citizen Live in France and Keep Working Remotely for a UK Employer After Brexit?
A. Which visa and residence permit fits a British remote worker living in France?
Since 1 January 2021, British citizens are third-country nationals in France. There is no acquired right of residence or work, and any stay longer than three months requires a visa followed by a residence permit. Article L411-1 of the CESEDA, the Code on the entry and residence of foreigners, states the rule plainly: “tout étranger âgé de plus de dix-huit ans qui souhaite séjourner en France pour une durée supérieure à trois mois doit être titulaire de l’un des documents de séjour suivants : 1° Un visa de long séjour”. A British remote worker therefore starts at the French consulate in the United Kingdom with a long-stay visa application, then validates or converts it after arrival. France has no dedicated digital-nomad visa to this day, so the application must fit one of the existing boxes, and the box must match the reality of the work, because the préfecture checks the employment documents line by line.
The most natural box for an employee of a British company is the salaried route. Article L421-1 of the CESEDA provides that “L’étranger qui exerce une activité salariée sous contrat de travail à durée indéterminée se voit délivrer une carte de séjour temporaire portant la mention ” salarié ” d’une durée maximale d’un an”, and it adds that delivery of the card “est subordonnée à la détention préalable d’une autorisation de travail”, the work authorisation. The mirror rule sits in the Labour Code: article L5221-2 requires that “Pour entrer en France en vue d’y exercer une profession salariée, l’étranger présente : 1° Les documents et visas exigés par les conventions internationales et les règlements en vigueur ; 2° Un contrat de travail visé par l’autorité administrative ou une autorisation de travail.” In practice the British employer, or the employee with the employer’s support, applies for the work authorisation before the visa, and the employment contract must describe the cross-border telework honestly: place of work in France, French address, who provides the equipment, and how French working-time and health-and-safety rules are observed. A vague contract that reads as if the employee still works in London is the single most common cause of refusal, and as shown below it also destroys the later social-security file.
Highly qualified employees have a second route worth examining. Article L421-9 of the CESEDA states that “Sous réserve de justifier du respect d’un seuil de rémunération fixé par décret en Conseil d’Etat, se voit délivrer une carte de séjour pluriannuelle portant la mention “ talent-salarié qualifié ” d’une durée maximale de quatre ans, l’étranger qui”, among other cases, holds a master’s-level degree or is recruited by an innovative young company. The four-year multi-year card gives stability that the one-year salarié card does not, but the salary threshold and the qualification conditions are strict, so the file must prove them with diplomas, pay slips and the employer’s documents. A third route, the intra-group posting known as détachement, exists for employees sent temporarily by a foreign employer: article L1262-1 of the Labour Code provides that “Un employeur établi hors de France peut détacher temporairement des salariés sur le territoire national, à condition qu’il existe un contrat de travail entre cet employeur et le salarié et que leur relation de travail subsiste pendant la période de détachement”. Genuine posting is temporary and keeps the employment relationship with the sending company, which is a different legal animal from settling permanently in France while working remotely; labelling a permanent move as a posting to dodge the residence-permit rules backfires at renewal and in court. British workers who invoice the UK company as freelancers fall under yet another route, the entrepreneur or self-employed card, with registration as a business and proof of economic viability — company creation itself is a separate matter, but the immigration consequence is the same: no work of any kind is lawful on a visitor status, and working without the correct title exposes both sides.
Two prohibitions frame the whole exercise. First, article L8251-1 of the Labour Code provides that “Nul ne peut, directement ou indirectement, embaucher, conserver à son service ou employer pour quelque durée que ce soit un étranger non muni du titre l’autorisant à exercer une activité salariée en France.” The British employer that lets its employee work from France without checking the title commits an offence, even with the best intentions and even if the salary keeps being paid from London. Second, the employer’s French social-security duties arise immediately, before any dispute about the permit: article L1221-10 of the Labour Code states that “L’embauche d’un salarié ne peut intervenir qu’après déclaration nominative accomplie par l’employeur auprès des organismes de protection sociale désignés à cet effet.” For an employer with no office in France, the declaration and the contributions go through the dedicated URSSAF service for foreign firms, as explained in section II.B below. Finally, every card must be renewed, and renewal is never automatic: article L433-1 of the CESEDA provides that “le renouvellement de la carte de séjour temporaire ou pluriannuelle est subordonné à la preuve par le ressortissant étranger qu’il continue de remplir les conditions requises pour la délivrance de cette carte.” Keep the telework addendum to the contract, the pay slips, the tax notices and the proof of address from year one, because year two will ask for all of them again.
B. My visa or residence permit was refused: how do I challenge it from France?
A refusal is not the end of the file; it is the start of a short clock. Read the decision first. An express refusal states its legal ground and the remedies at the bottom of the letter; silence kept by the administration beyond the statutory period can amount to an implied refusal that is equally challengeable. The two standard paths can be combined: an informal appeal to the authority that decided, called a recours gracieux, or to its hierarchical superior, called a recours hiérarchique, asking it to reverse itself in the light of new or better-organised evidence; and a court action before the administrative tribunal (tribunal administratif), the court that judges disputes between individuals and the administration. The court deadline is strict: article R421-1 of the Code of Administrative Justice provides that a court action lies “dans les deux mois à partir de la notification ou de la publication de la décision attaquée”. Two months from notification, not from the day you feel ready. An informal appeal filed within those two months extends the court deadline, which is why lawyers routinely file both: the recours gracieux seeks a quick rethink, and the tribunal application protects the file if the rethink fails. Where removal from France or loss of the right to work is imminent, an emergency suspension procedure before the same tribunal can freeze the effects of the decision while the main case is examined.
Remote workers win these cases on paperwork, not on rhetoric. The file that overturns a refusal proves four things with dated documents. First, that real salaried work is performed in France under a contract that organises it: the cross-border telework clause, the French place of work, recent pay slips, and a certified French translation of any English-language contract, because untranslated exhibits are routinely set aside. The warning comes from a recent social-security judgment that immigration lawyers now cite in permit files too: on 27 October 2025 the social chamber of the Meaux judicial court, in case RG 25/00194, rejected a teleworker employed by a foreign company precisely because “dans son contrat de travail – produit dans une version géorgienne et anglaise non traduite en français – aucune mention n’est faite d’une organisation du temps de travail en télétravail à l’étranger”, and the court added the general lesson that “Le seul fait qu’elle allègue réaliser sa prestation de travail depuis la France sous la forme du télétravail, sans que son contrat de travail n’organise ce télétravail, est insuffisant”. Read the full decision at Cour de cassation, decision 690d036d1f8a20b910008cb9. Second, stable housing in France: lease, utility bills, home insurance. Third, sufficient and stable resources: bank statements and the employer’s letter confirming that the post continues in France. Fourth, health cover, addressed in section II.B. File the court action at the tribunal of the préfecture that refused — for Paris and much of Île-de-France that means the Paris administrative tribunal for Paris files — and keep every receipt of posting, because the two-month proof starts from notification and the tribunal checks it first.
II. Where Does a British Remote Worker in France Pay Tax and Social Security, and How Do I Challenge a Bill?
A. Where is the salary taxed when I live in France and my employer sits in London?
Start with French domestic law, because it bites first. Article 4B of the General Tax Code lists three alternative tests, and meeting any one of them makes you a French tax resident: treats as French tax residents “Les personnes qui ont en France leur foyer ou le lieu de leur séjour principal”, or “Celles qui exercent en France une activité professionnelle, salariée ou non, à moins qu’elles ne justifient que cette activité y est exercée à titre accessoire”, or “Celles qui ont en France le centre de leurs intérêts économiques” — home, professional activity, or centre of economic interests, any one of the three being enough. A British remote worker whose family home (foyer) is in France meets test (a) immediately; a worker whose professional activity is physically performed in France meets test (b) unless the French activity is genuinely ancillary, which full-time remote work never is. The same article adds the treaty safety valve: the same article adds the treaty safety valve: “Les personnes qui satisfont à l’un au moins des critères fixés aux a à c du présent 1 ne peuvent toutefois pas être considérées comme ayant leur domicile fiscal en France lorsque, par application des conventions internationales relatives aux doubles impositions, elles ne sont pas regardées comme résidentes de France.” So the France-UK double tax treaty of 19 June 2008, published in France by Decree No. 2010-20 of 7 January 2010 and set out in English on GOV.UK, decides the close cases — but for the settled remote worker it confirms France rather than contradicting it.
The treaty tie-breaker for people claimed by both States runs through four steps in order. Article 4(2) of the France-UK treaty works down a ladder: permanent home first, then the State of closest personal and economic relations (centre of vital interests), then habitual abode, then nationality, then habitual stay, then nationality, then mutual agreement between the tax authorities. A British employee whose permanent home, spouse, children and daily life are in France, with only a work inbox in London, resolves at step one or two in favour of France. Keeping a London flat for occasional trips does not move the centre of vital interests back to Britain when the family, the schools, the bank accounts and the French tax household all sit in France.
Once French residence is settled, the employment-income rule points the same way. salary follows the place of work: employment exercised in France may be taxed in France (Article 15(1) of the France-UK treaty) Work done at a desk in France is employment exercised in France, even if the contract says London, the manager sits in London and the salary lands in a British bank account. The well-known 183-day exception does not save the settled remote worker, because all three of its conditions must be met together: Article 15(2) keeps taxation in the residence State only if three conditions coincide: presence in the other State for no more than 183 days in any twelve-month period, payment by or for an employer not resident there, and no permanent establishment bearing the cost (Article 15(2) of the treaty) A remote worker living year-round in France fails condition (a) on its own, so France taxes the salary. Concretely: declare the worldwide salary in France each spring, including the British salary, on the standard income return with its foreign-income schedule, and declare the move honestly in year one so the tax office opens a file instead of discovering you later with penalties. British PAYE deductions do not disappear by themselves; the UK payroll must be told of the French residence and the treaty position, and any British tax withheld on the same salary is relieved in France through the treaty’s elimination mechanism, under which, through a tax credit against French tax granted within stated limits (Article 24(3)(a) of the treaty) Keep the P60, the payslips, the French tax notice and the proof of any UK tax paid on the same income: the credit is computed document by document.
When the French tax office sends a bill you consider wrong — worldwide salary reassessed, treaty credit refused, late-filing penalties after a chaotic first year — challenge it in writing first with a formal complaint (réclamation) setting out the treaty articles and attaching the exhibits, then, if the administration confirms, take the dispute to the administrative tribunal within two months of the rejection, the same two-month rule of article R421-1. Interest and penalties keep running while you argue, so pay what is clearly due, contest the rest, and never let the deadline pass: French tax judges forgive many things, but they do not forgive a late claim.
B. Which social security scheme covers work done in France for a UK employer?
The social-security answer is blunter than the tax answer, and it surprises British employers the most: work physically performed in France puts the worker in the French scheme from day one, whether or not the employer has a French office. Article L111-2-2 of the Social Security Code affiliates “toutes les personnes : 1° Qui exercent sur le territoire français : a) Une activité pour le compte d’un ou de plusieurs employeurs, ayant ou non un établissement en France”. The phrase “ayant ou non un établissement en France” was written for exactly this case. Article L311-2 widens the net further: compulsory affiliation covers “toutes les personnes quelle que soit leur nationalité, de l’un ou de l’autre sexe, salariées ou travaillant à quelque titre ou en quelque lieu que ce soit, pour un ou plusieurs employeurs”. Nationality, payroll location and contract language change nothing; the place where the hands type is what counts. The official coordination body confirms the consequence for employers from a State with no applicable agreement: the worker sent to France joins the French social-security scheme on the same terms and with the same contributions as employees working in France (Cleiss, the official liaison centre for international social security, guidance on employers established in a State with no social-security agreement with France). The British employer must therefore register and contribute in France through the URSSAF service for foreign firms, because article L243-1-2 of the Social Security Code provides that such an employer “remplit ses obligations relatives aux déclarations et versements des contributions et cotisations sociales d’origine légale ou conventionnelle auxquelles il est tenu au titre de l’emploi de personnel salarié auprès d’un organisme de recouvrement unique”. An employer that keeps paying only British National Insurance for a worker settled in France builds up contribution arrears plus surcharges on the French side, and discovers the debt at the first URSSAF audit.
For the worker, French affiliation means French health cover — but only if the file is built correctly. The universal health protection (Puma, the scheme giving continuous cover to anyone working or stably resident in France) covers you on either of two independent grounds, as the public service explains (service-public.fr, universal health protection (Puma)): the residence ground requires more than three months of uninterrupted presence in France, and cover extends to anyone working or living here on a stable, regular basis In the remote-worker case the work ground should apply first, and it is stronger, because it opens contribution-based rights rather than residence-based cover. That is why the Meaux judgment quoted in section I.B matters twice over: the CPAM had refused health rights on the ground that “son employeur résidant à l’étranger, ses cotisations sont dès lors versées à l’étranger et que, la caisse ne peut lui ouvrir des droits sous critère de résidence car elle n’est pas sans activités”, and the court upheld the refusal (Tribunal judiciaire de Meaux, 27 October 2025, RG 25/00194) because the telework in France was never proved. The trap is real: claim residence-based cover while declaring professional activity, and the fund answers that an active person cannot use the residence door; claim work-based cover with a contract that never organises telework in France, and the fund answers that work in France is not proved. The way out is one coherent file: a contract addendum organising remote work in France, translated into French, plus pay slips showing French social contributions, proof of three months’ uninterrupted presence, and registration with the CPAM of your place of residence — in Paris, the CPAM de Paris. Do not count on a British S1 or A1 certificate for a permanent remote move: London’s own guidance (GOV.UK, National Insurance if you work abroad) warns that National Insurance can remain due in Britain during work abroad, with continued UK liability limited to temporary postings, and its twelve-month continued-liability rule covers only temporary postings by a UK employer for workers ordinarily resident in Britain, not a settled life in France. If both States claim contributions at once, the file goes to the liaison institutions with the contract, the residence proofs and the contribution records, and the worker keeps paying in France in the meantime rather than stopping everywhere.
When the bill or the refusal arrives, each has its own challenge track with its own clock. An URSSAF reassessment follows a fixed ritual, described by the Court of Cassation itself in a 13 October 2022 ruling (Second Civil Chamber, appeal No. 21-13.252): “à la suite d’un contrôle portant sur les années 2011 à 2013, l’URSSAF de Picardie (l’URSSAF) a, selon lettre d’observations du 11 juillet 2014, puis mise en demeure du 24 décembre 2014, notifié à la société [2] (la société) un redressement”. Read the full ruling at Cour de cassation, decision 6347af0529ffd2adfff4f50f. Control, observations letter, formal demand, then the bill: answer the observations letter point by point within its deadline instead of waiting for the demand, because article L244-2 of the Social Security Code makes the formal demand the gateway to enforcement — “ledit avertissement est remplacé par une mise en demeure adressée par lettre recommandée”. A CPAM refusal goes first to its internal appeals commission (CRA, the fund’s friendly-appeals board): article R142-1 of the Social Security Code requires that “Cette commission doit être saisie dans le délai de deux mois à compter de la notification de la décision”. If the commission confirms, the case moves to the social chamber of the judicial court (pôle social du tribunal judiciaire), the civil court for social-security disputes — for Paris files, the Paris judicial court. Two court lessons strengthen these challenges. First, affiliation, once the conditions are met, is not a favour the fund grants: the Paris Court of Appeal held on 28 March 2025 (RG 20/05217) that “Lorsque ces conditions sont remplies, l’affiliation au régime d’assurance maladie est automatique et obligatoire, sans que cette affiliation ne soit dès lors soumise à une demande d’adhésion et à une décision préalable d’affiliation à l’assurance maladie”, citing the statute that “toute personne travaillant ou, lorsqu’elle n’exerce pas d’activité professionnelle, résidant en France de manière stable et régulière bénéficie, en cas de maladie ou de maternité, de la prise en charge de ses frais de santé”. Read the full ruling at Cour de cassation, decision 67e78ddea0756e3a702f8df9. Second, residence is proved freely: the same court recalled that “La résidence en France peut être prouvée par tout moyen”, and article R111-2 of the Social Security Code defines the substance — “sont considérées comme résidant en France de manière stable les personnes qui ont leur foyer ou le lieu de leur séjour principal sur le territoire métropolitain”. Passport stamps, leases, school certificates, utility bills and bank statements all count, which is how remote workers usually win once the file is complete. One final warning for households living on capital rather than wages: an inactive British resident with low professional income but substantial capital income can be called to a separate annual health contribution, so stopping work without reorganising the file can replace one bill with another — take advice before resigning to live off savings.
Conclusion
A British remote worker settled in France lives under French law for the three things that matter most: permission to stay, tax on the salary, and social-security cover. Secure them in order. First, the residence file: a long-stay visa matched to the real work, a contract that organises telework in France in writing and in French, and renewal proofs kept from year one, because the préfecture renews only what the worker proves again. Second, the tax file: French residence under article 4B, taxation of the French-performed salary under article 15 of the treaty, and the treaty credit for any British tax on the same income, declared every spring without waiting to be found. Third, the social-security file: French affiliation from the first French working day, a British employer registered with the URSSAF foreign-firms service, CPAM registration on the work ground with three months’ presence proofs in reserve, and no reliance on British certificates designed for temporary postings. When a refusal or a bill lands, challenge fast and in the right forum: two months for the administrative tribunal against a permit refusal, two months for the fund’s appeals commission against a CPAM decision, and a point-by-point answer to every URSSAF observations letter before it hardens into a formal demand. Remote workers in Paris and Île-de-France follow the same national rules with local counters — the Paris préfecture and the surrounding préfectures, the Paris administrative tribunal, the Paris judicial court’s social chamber, the CPAM de Paris and URSSAF Île-de-France — so put the right office on the right envelope. The files that succeed are never the loudest; they are the best documented, with a translated contract, matching tax and contribution records, and every deadline met.
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