Working from a cottage in the Dordogne for a London employer sounds simple: same job, same salary, better lunch. Since Brexit, it is a three-way legal problem. British citizens no longer enjoy European Union freedom of movement, so living in France for more than three months requires a visa or a residence permit. A salary paid through British payroll does not by itself decide where income tax is due when the worker’s home and daily work are in France. And an employer with no office in France can still owe French social charges on that salary and must register for them before the work starts.

This article is for a British employee whose contract remains with a company established in the United Kingdom while the employee lives and works remotely in France. It explains every French term the first time it is used. A long-stay visa is a visa for stays over three months. A carte de sejour is a French residence permit. An autorisation de travail is a work authorisation. The URSSAF is the French body that collects social security contributions. The DRIEETS is the regional authority in Ile-de-France that handles work authorisations around Paris. The OQTF, or obligation de quitter le territoire francais, is an order to leave French territory. The tribunal administratif is the administrative court that reviews immigration and tax decisions.

The first part explains how to enter and stay lawfully and what a British employer without a French establishment must set up. The second part explains where the salary is taxed, which French social charges apply, and how to challenge a visa refusal, a removal order, an URSSAF reassessment or a tax bill. The general map of French visas for British newcomers, from long-stay visas to the main residence permits and remedies against refusal, is set out in the pillar guide to British newcomer visas and residence permits in France; this article builds on it for the specific case of remote work for a British employer.

I. How a British remote worker lawfully lives and works in France after Brexit

A. Which long-stay visa and which residence permit covers work for a United Kingdom employer from France?

Since 1 January 2021, a British citizen who wishes to settle in France is a third-country national. The starting rule is stated in the Code de l’entree et du sejour des etrangers et du droit d’asile, usually shortened to CESEDA, which governs entry and residence. Article L411-1 provides: “Sous réserve des engagements internationaux de la France ou du livre II, 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 :” The full official text is in the CESEDA, Article L411-1. In plain terms, any stay beyond three months needs a long-stay visa, a temporary residence permit, a multi-year permit, a resident card or one of the other listed documents. A British passport alone is not enough.

Short visits remain possible without a visa under the Schengen 90/180-day rule, but short-stay presence does not authorise salaried work performed from France. A British employee who rents a French home, registers children at a French school, opens French tax and health files and works every day from that home is not a visitor. The administration looks at real life, not at the label on the flight ticket. Working full-time from France while holding only visitor status creates three parallel risks: an application for a residence permit may be refused for lack of a proper long-stay visa, the employer may be treated as employing in France without the required registrations, and the worker may be found resident for tax and social security while holding no right to stay.

The French definition of remote work matters here. Article L1222-9 of the Labour Code states: “le télétravail désigne toute forme d’organisation du travail dans laquelle un travail qui aurait également pu être exécuté dans les locaux de l’employeur est effectué par un salarié hors de ces locaux de façon volontaire en utilisant les technologies de l’information et de la communication.” The official text is in the Labour Code, Article L1222-9. A London analyst who could do the same tasks in the London office but does them from a house near Bergerac is therefore a remote worker in the French legal sense. That characterisation does not create a visa by itself, but it determines which work authorisation and which social security analysis apply.

There is no single visa labelled remote worker for a British employee of a British company. The correct route depends on the contract, the salary, the qualifications and whether the British employer has any French presence. Four routes cover most real cases. First, the salarie route for permanent employment. Article L421-1 of CESEDA states: “L’étranger qui exerce une activité salariée sous contrat de travail à durée indéterminée se voit délivrer une carte de séjour temporaire” for a maximum of one year with a salaried mention. The same article adds the decisive condition: “La délivrance de cette carte de séjour est subordonnée à la détention préalable d’une autorisation de travail, dans les conditions prévues par les articles L. 5221-2 et suivants du code du travail .” The full text is in the CESEDA, Article L421-1. A British worker hired on a permanent contract to work from France therefore needs a work authorisation before the residence permit can be issued, even where the employer stays in London.

Second, the passeport talent route for highly qualified employees, intra-group moves or recognised profiles, which can give a multi-year permit where salary and qualification thresholds are met. Third, the entrepreneur or self-employed route where the British worker leaves salaried status and invoices as an independent contractor, which changes the tax and social security analysis entirely and should only be chosen where the working relationship is genuinely independent. Fourth, family or Withdrawal Agreement routes where the worker already holds rights as a family member of a European Union citizen or as a beneficiary of the Brexit Withdrawal Agreement; those routes do not depend on the employment contract but still require the holder to respect the conditions of the permit.

The work authorisation is the gatekeeper for the salaried routes. Article L5221-2 of the Labour Code provides: “Pour entrer en France en vue d’y exercer une profession salariée, l’étranger présente :” The official article continues with the two items the foreign worker must show, namely the required documents and visas and either a contract approved by the administration or a work authorisation. The full text is in the Labour Code, Article L5221-2. The practical guide in English is on Service-Public: authorisation to work for a foreign employee in France, and the Brexit-specific employment conditions are summarised on Brexit.gouv.fr: employment conditions for British citizens. The United Kingdom side confirms the same starting point in GOV.UK: living in France guidance and GOV.UK: travel to France for work.

The prohibition behind these permits has teeth. Article L8251-1 of the Labour Code states: “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 official text is in the Labour Code, Article L8251-1. An employer that lets a British worker start from France before the authorisation arrives is exposed to administrative fines, back contributions and, in serious cases, criminal liability. The worker is exposed to refusal of the permit and to a removal order. The Cour de cassation illustrated how strictly courts treat work without the proper title in a social chamber judgment of 17 April 2019, appeal number 18-15.321, where the Court recorded that “M. R…, ressortissant d’un Etat tiers à l’Union européenne, a été engagé en qualité d’employé polyvalent de restauration à compter du 26 mars 2010 par la société Api restauration sans être titulaire d’un titre de séjour l’autorisant à travailler ;” The full official decision is on Cour de cassation, Social chamber, 17 April 2019, no. 18-15.321. The facts concerned catering rather than remote work, so the case must not be stretched beyond its facts, but the lesson travels: starting work before holding the correct title poisons everything that follows, including later claims against a new employer.

Detached-worker status, known in French as detachement, does not solve ordinary remote work. Article L1262-1 of the Labour Code provides: “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.” The official text is in the Labour Code, Article L1262-1. Detachment covers a temporary posting to France for the employer’s account, between establishments of the same group, or on the employer’s own account without a French client. A British worker who moves home to France for an indefinite period and works permanently from France is not temporarily posted. Treating permanent remote work as detachment in order to keep British social security indefinitely is a classification error that URSSAF and the tax administration can both revisit.

In Paris and the wider Ile-de-France, procedure has local texture. Applications pass through the Paris prefecture or the prefecture of the department of residence, with the DRIEETS Ile-de-France examining the work-authorisation side for Paris-based files. Waiting times in the capital are longer than in many provincial prefectures, so a British hire should file early, keep every receipt, and avoid planning travel that requires surrendering the passport during the examination period. If the file is refused, the refusal letter must state the reasons and the remedies; an unexplained refusal can itself be challenged. Keep the employment contract, the employer’s Companies House extract with a certified translation, the job description, salary evidence, qualification diplomas, the lease or title deed for the French home, and proof that the employer has started or completed French registration. Those documents serve twice: they support the permit, and they later prove the reality of the work if contributions or tax are disputed.

B. What your United Kingdom employer must do in France before you start

French law follows the work, not the payroll software. Where the employee carries on salaried activity physically in France, the default is French social security, even where the contract is written under English law and the salary is paid from London into a British bank account. Article L311-2 of the Social Security Code states: “Sont affiliées obligatoirement aux assurances sociales du régime général, quel que soit leur âge et même si elles sont titulaires d’une pension, 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 et quels que soient le montant et la nature de leur rémunération, la forme, la nature ou la validité de leur contrat ou la nature de leur statut.” The official text is in the Social Security Code, Article L311-2. Nationality, contract language and payroll location do not displace that rule. Only a European coordination instrument, a bilateral social security agreement or a genuine detachment with the correct certificate can keep another legislation applicable, and the United Kingdom’s exit from the European Union narrowed those bridges considerably.

A British employer with no office, branch or subsidiary in France must therefore register as a foreign employer. The dedicated route is the foreign-firms service of URSSAF, known as the service des firmes etrangeres, which allows an employer established abroad to declare hires in France, pay French contributions and issue French payslips without creating a French company. The official entry points are the URSSAF foreign companies service and the URSSAF portal for foreign companies. Registration should be completed before the first day worked from France. The employer obtains a French employer number, declares the worker through the prior hiring declaration, known as the declaration prealable a l’embauche, sets up a compliant French payslip showing gross salary, employee and employer contributions, income-tax withholding at source where applicable, and net pay, and affiliates the worker to the relevant supplementary pension and provident schemes. Payslips generated only by British payroll software, showing only Pay As You Earn and National Insurance, do not satisfy French inspection.

The contribution base is French. Article L242-1 of the Social Security Code provides: “Les cotisations de sécurité sociale dues au titre de l’affiliation au régime général des personnes mentionnées aux articles L. 311-2 et L. 311-3 sont assises sur les revenus d’activité tels qu’ils sont pris en compte pour la détermination de l’assiette définie à l’article L. 136-1-1 .” The official text is in the Social Security Code, Article L242-1. In practice, the whole salary for work done from France falls into the French base, including base pay, bonuses tied to that work, benefits in kind such as a London flat kept for business trips, and remote-work allowances to the extent they are salary rather than genuine expense reimbursement. Expense rules are strict and documented: a monthly lump sum labelled internet or office costs without receipts and without a business justification can be reclassified as salary and charged with contributions plus late penalties.

Certificates of coverage decide hard cases. Before Brexit, European Regulation 883/2004 allocated social security between Member States through posting certificates and multi-state activity rules. Since the end of transition, the European Union-United Kingdom Trade and Cooperation Agreement contains its own Protocol on Social Security Coordination with narrower detached-worker provisions and different time limits. A British worker who started remote work from France after 2021 cannot simply keep an old European A1 certificate issued for a different posting and assume French affiliation disappears. Where no valid certificate covers the French work, URSSAF treats the worker as insured in France from the first day. Where the worker splits time between London and France, the applicable legislation depends on the share of substantial activity in each State, the employer’s registered office, and where the worker resides; the answer requires the actual calendar of days worked in each country, travel records and the contract, not a general statement that the worker is mainly London-based.

The Cour de cassation polices the boundary between French and foreign social security through territoriality. In a second civil chamber judgment of 13 October 2022, appeal number 21-13.252, the Court examined an URSSAF reassessment after an inspection covering several years. The judgment records that “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 portant notamment sur la réintégration dans l’assiette des cotisations des indemnités de dépaysement et d’expatriation versées à deux salariés exerçant leur activité professionnelle respectivement en Chine et en Thaïlande.” The full official decision is on Cour de cassation, Second civil chamber, 13 October 2022, no. 21-13.252. The posting countries differ from the British case, so the decision must not be quoted as if it concerned London payroll, but its method is directly relevant: URSSAF reassesses where allowances or foreign-payroll labels hide French salary, and the Court checks whether the foreign legislation genuinely applied under a convention or regulation. A British employer that pays a France-based worker through London payroll with a cost-of-living top-up and no French declaration invites exactly that kind of reassessment in Ile-de-France, where URSSAF controls are frequent and well documented.

Practical preparation makes the difference between a clean registration and a reassessment with penalties. The employer should keep the signed contract with the French place of work stated, any amendment recording the move from London to France, the job description showing that the duties can be done remotely, the employer’s registration confirmation with the foreign-firms service, each monthly declaration and payment receipt, French payslips, proof of affiliation to supplementary pension and health cover, the worker’s residence permit or visa, and the certificate of coverage where one is genuinely held. The worker should keep the lease or purchase deed, utility bills, the calendar of days spent in France and in Britain, travel bookings, and correspondence showing where day-to-day instructions come from. In the Paris region, where rents and salaries are high and files attract closer scrutiny, payslips must also reflect the correct supplementary schemes for executives or non-executives, known as cadres and non-cadres, because the wrong scheme affiliation is a classic trigger for back charges.

Two traps deserve emphasis. The first is the contractor conversion, where the London employer asks the worker to resign and re-engage as a consultant invoicing from France in order to avoid French employer registration. If the worker still takes orders from the same manager, works the same hours and uses the employer’s equipment, the relationship can be reclassified as employment, with back contributions, late surcharges and liability for undeclared work. The second is the shadow payroll, where the employer keeps full British payroll and adds an informal French top-up. Double payroll without coordination produces double charges and solves nothing for residence permits, because the prefecture wants to see the French employer number and French payslips, not a London P60 alone.

II. How your United Kingdom salary is taxed and charged in France, and how to fight a wrong decision

A. Where you pay income tax when your home is in France and your payroll is in Britain

Tax residence comes first, because it decides the scope of French taxation before any treaty relief is calculated. Article 4B of the General Tax Code states: “Sont considérées 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 séjour principal ; b. 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 ;” The full official text is in the General Tax Code, Article 4B. A British remote worker who rents or owns a French home where the family lives year-round, whose children attend French schools and who performs the job daily from France will normally meet at least one of these domestic tests, often two. Meeting one test is enough for France to treat the worker as fiscally domiciled in France, subject only to the tie-breaker in an applicable double-tax treaty.

The France-United Kingdom double-tax treaty of 19 June 2008, as amended by later protocols, then allocates taxing rights between the two States. British employment income for work physically done in France is not automatically taxable only in Britain because the employer is British. The treaty’s employment article follows the international standard: the State where the work is physically performed may tax the salary attributable to that work, while the State of the employer keeps wider rights only in narrow cases involving short presence, foreign payment and absence of a local permanent establishment. A worker who lives full-time in France and works full-time from France does not fit those narrow exceptions. The treaty article on elimination of double taxation then tells France how to relieve British tax on the same income, normally through a tax credit rather than an exemption, so the worker must still declare the worldwide salary in France.

Declaration is therefore central. A French tax resident declares worldwide wages on the annual income-tax return, using the main return and the foreign-income annexe for British-source amounts, and reports any British bank accounts that remain open on the separate foreign-account form. The salary shown on the British P60, the P45 on departure, the final payslips, French payslips once the foreign-firms registration is active, the employment contract, proof of British tax deducted, and the calendar of days worked in each country should all be kept together. The French administration can ask why a London salary appears on a British document but was not initially declared in France, and the answer must be documented with dates: when the worker moved, when French payroll started, when British payroll stopped or was adjusted, and what credit was claimed for British tax.

Calculation examples clarify the stakes. Take a British worker earning the equivalent of 72,000 euros a year, working every day from a home in Lyon for a London company, with 8,000 pounds of British tax withheld at source. France taxes the full 72,000 euros converted at the correct annual rate, applies the progressive scale after the standard adjustments, then gives a credit for the British tax attributable to the same salary within treaty limits. The credit cannot exceed the French tax on that income, so timing gaps and exchange-rate movements can leave a residual French balance. Take a second worker who spends 40 per cent of working days in London and 60 per cent in Paris: only the French-work share is automatically within French primary taxing rights under the employment article, but French residence still pulls worldwide income into the French return, with treaty relief sorting the British-work share. Both workers must keep travel evidence, because the allocation follows actual physical presence rather than the employer’s preferred narrative.

Common errors recur in files reviewed after reassessment. The first is assuming that continued Pay As You Earn deduction in Britain means nothing is due in France; British withholding does not cancel French residence taxation, it only feeds the treaty credit. The second is declaring only the net amount received in the French bank account rather than the gross salary plus benefits in kind; France taxes the full employment income before British deductions. The third is forgetting the foreign-account reporting for the remaining British current account used for the mortgage or family support; the account itself must be reported even where the balance is modest. The fourth is missing the property-tax consequences of the move: occupying a French home as a main residence changes the local-tax picture compared with second-home ownership, and the worker should check the taxe fonciere bill and any housing-tax exposure for secondary occupants rather than assuming the income-tax return settles everything.

The Paris dimension sharpens the calculation. A remote worker living in Paris often keeps a higher salary negotiated for London living costs while facing Paris housing costs and Paris-level scrutiny from the tax office. Retaining a London flat for weekly commuting creates a second-home footprint in Britain that HM Revenue and Customs may examine for British residence under the Statutory Residence Test, while France examines the Paris home for French domicile. Holding two homes does not create double non-taxation; it creates two administrations that each want proof of days, ties and centre of interests. Keep boarding passes, Eurostar bookings, employer attendance logs, school certificates, medical registrations, and utility consumption records. These mundane documents decide residence disputes more reliably than any letter from the employer describing the worker as London-based.

B. Which social charges apply and how to challenge a refusal, a removal order or a tax bill

Once French affiliation is established, the charge is broader than many British workers expect. French social levies on employment income combine employee and employer contributions for health, old-age pension, family benefits, workplace accidents, unemployment insurance and supplementary schemes, plus the general social contribution and the contribution for the repayment of the social debt, known as CSG and CRDS, which weigh on the worker. The employer’s share in France is substantially heavier than British National Insurance, often surprising London finance directors who budgeted on British rates. That surprise does not reduce the debt. URSSAF reassessments add the principal, late-payment surcharges and, where undeclared work is found, specific penalties. The tax administration runs a parallel track for income tax, withholding corrections and reporting fines, so a single move can produce two files with two calendars and two remedies.

The first battle is often immigration rather than money. A prefecture may refuse the work authorisation because the salary looks too low for the role, the job description looks inconsistent with remote performance, the employer’s French registration is missing, or the file does not show that the worker will genuinely reside in France. It may refuse the residence permit because the long-stay visa was the wrong category or because the worker entered visa-free and applied from inside France outside the narrow cases where that is allowed. Any refusal must be reasoned and must indicate the remedies. The worker should immediately diary the time limits: administrative appeals to the prefect or to the minister are short, and court review has its own deadline. Article R421-1 of the Code of Administrative Justice states: “La juridiction ne peut être saisie que par voie de recours formé contre une décision, et ce, dans les deux mois à partir de la notification ou de la publication de la décision attaquée.” The official text is in the Code of Administrative Justice, Article R421-1. Missing that two-month window can close the court route even where the refusal was weak.

A refusal can be accompanied by an order to leave French territory. Article L611-1 of CESEDA provides: “L’autorité administrative peut obliger un étranger à quitter le territoire français lorsqu’il se trouve dans les cas suivants :” The official article then lists the cases, including unlawful entry, unlawful stay beyond three months, and refusal or withdrawal of a residence document. The full text is in the CESEDA, Article L611-1. An OQTF sets its own very short challenge period, commonly thirty days and in some cases forty-eight hours where detention or a border measure is involved, so the worker must read the stamp at the foot of the decision rather than relying on general advice. The challenge goes to the tribunal administratif of the place of residence, which for a Paris home means the tribunal administratif de Paris. Ask the court for interim protection where removal is imminent, and attach the lease, payslips, school certificates and any pending work-authorisation receipt to show real settlement and a serious pending file.

The second battle is the URSSAF reassessment. A typical control starts with a notice, continues with on-site or documentary inspection, and ends with a letter of observations, known as the lettre d’observations, setting out each proposed recharge with its legal basis and amount. The employer has a short adversarial period to reply in writing with evidence before the formal demand, known as the mise en demeure, is issued. The reply should be concrete: registration certificates, declarations, payslips, the coverage certificate where one exists, the work calendar, and payroll extracts reconciling British and French figures. Generic letters stating that the worker was taxed in Britain do not answer a French contribution case. If the demand is maintained, the employer and, for some levies, the worker can take the dispute to theamiable-recourse commission and then to the judicial court for social-security disputes, keeping every deadline proved by recorded delivery or the URSSAF portal receipts.

The third battle is the tax correction. The French administration may send a proposal of rectification, known as the proposition de rectification, inviting observations before assessing additional tax, interest and penalties. The worker should answer point by point: residence timeline with supporting documents, treaty article relied on with the allocation of days, amount of British tax paid with HM Revenue and Customs statements, credit computation, and foreign-account filings. Where the administration maintains the charge, the formal assessment can be contested through the administrative claim and then the tribunal administratif. Keep the British P60, SA302 or employment-income statements, French notices of assessment, known as avis d’impot, bank statements showing the salary trail, and the exchange-rate source used for conversion. An argument that treaty relief was overlooked works only where the British tax is proved with official documents rather than asserted from memory.

Evidence discipline decides all three battles. Build one chronological bundle from the first day in France: visa, passport stamps, residence-permit receipts, work authorisation, contract and amendments, employer’s URSSAF registration, monthly declarations and payment proofs, French payslips, British payroll final documents, coverage certificate if any, lease or title deed, utility bills, school and medical registrations, travel calendar with bookings, tax returns in both States with filing receipts, and every administrative letter with its envelope or electronic notification record. In the Paris region, add DRIEETS correspondence, prefecture receipts and URSSAF Ile-de-France letters, because different offices handle the file at different stages and each wants its own reference number quoted back. A worker who can show the tribunal or the inspector a complete dated file is treated differently from one who produces screenshots and explanations.

Three practical cautions close this part. First, never work on a visitor visa while waiting for the salaried file to mature; use a proper long-stay visa route or postpone the French start date. Second, never ignore an OQTF because an appeal against the permit refusal seems stronger; the removal order runs on its own clock and can be enforced separately. Third, never let British payroll continue unchanged after the French move without adjusting withholding, certificates and declarations; parallel full payrolls in both States without a documented treaty and social-security analysis create the worst of both systems rather than the best.

Conclusion

A British employee can live in France and work remotely for a London employer after Brexit, but the arrangement only survives when three systems point the same way. Residence law must authorise both the stay and the salaried activity from France, with the work authorisation obtained before the residence permit. Social security must follow the physical work, normally through French affiliation and registration with the URSSAF foreign-firms service, unless a valid coverage instrument genuinely keeps another legislation applicable for a defined period. Income tax must reflect French residence on worldwide wages, with the Franco-British treaty allocating the British-work share and granting relief through credit rather than silence.

The files that fail share the same features: a visitor visa used for permanent work, a London payroll left untouched after the move, no French employer registration, no French payslips, and treaty relief claimed without British proof. The files that succeed are prepared in the opposite order: the right long-stay visa first, the employer’s French registration before day one, French payslips from the start, worldwide declaration in France with documented British tax credited, and a dated bundle that proves days, home and duties. Remote work from France is therefore less a payroll trick than a residence project, and it should be organised as one from the outset.