{"id":2133441,"date":"2026-09-28T09:56:22","date_gmt":"2026-09-28T07:56:22","guid":{"rendered":"https:\/\/kohenavocats.fr\/2026\/09\/28\/british-france-healthcare-s1-puma-ghic-cpam-refusal-challenge-brexit\/"},"modified":"2026-09-28T09:56:22","modified_gmt":"2026-09-28T07:56:22","slug":"british-france-healthcare-s1-puma-ghic-cpam-refusal-challenge-brexit","status":"publish","type":"post","link":"https:\/\/kohenavocats.fr\/en\/2026\/09\/28\/british-france-healthcare-s1-puma-ghic-cpam-refusal-challenge-brexit\/","title":{"rendered":"British Healthcare in France After Brexit: How Your S1, PUMA and GHIC Really Work, What the Early-Retiree Gap Costs, and How to Challenge a CPAM Refusal"},"content":{"rendered":"

You have done everything in the right order. You secured a French long-stay visa before leaving Britain, you registered your arrival, you found a house in the Dordogne or a flat in Paris, and you assumed that healthcare would sort itself out the way it always did when Britain was in the European Union. Then a letter arrives from your local health fund, the Caisse primaire d’assurance maladie<\/em> (the local branch of the French health insurance fund, shortened to CPAM), telling you that your file is incomplete, or that your British S1 form (the certificate by which the United Kingdom pays France for your healthcare) cannot be registered, or that you owe a yearly contribution you never heard of. For a British household in France after Brexit, that letter is the moment when residence law, social security coordination and French administrative procedure collide. This guide explains the three doors into French state healthcare for Britons, which door is yours, what the gap years before your British State Pension cost, and how to challenge a refusal or a bill before the deadlines close. The British side is documented from the official GOV.UK guidance on healthcare in France, and every French rule below is quoted from the statute or the court decision that creates it.<\/p>\n

I. How do British residents get French state healthcare after Brexit?<\/h2>\n

A. How does the S1 keep your healthcare funded by Britain when you draw a UK State Pension?<\/h3>\n

The S1 is the document most British pensioners in France will rely on, and it deserves a precise definition before anything else. An S1 form (the portable certificate issued by the British Overseas Healthcare Services on behalf of the National Health Service, confirming that the United Kingdom remains responsible for your healthcare costs) does not make you a patient of the British system while you live in France. It makes France treat you, while sending the bill to London under the social security coordination rules preserved by the Withdrawal Agreement. The GOV.UK guidance puts the practical starting point bluntly: living in France requires holding health insurance cover. For a pensioner, the S1 is that cover, and registration at the CPAM of the place of residence is compulsory, not optional paperwork. Until your S1 is registered with the CPAM of your place of residence, neither your rights nor those of the family members attached to your certificate exist in the French system.<\/p>\n

Who can obtain an S1? The principal beneficiaries are people who draw a British State Pension and live in France, people who receive certain British benefits that can be paid abroad and carry healthcare rights with them, and workers whom a British employer posts temporarily to France while they remain insured in Britain. If you draw a State Pension, you request the application form by telephone from the NHS Overseas Healthcare Services, and you register the issued S1 at your CPAM. The GOV.UK page describes what follows: you receive a temporary social security number by post after one to three months, then a document called the attestation de droits \u00e0 l’assurance maladie<\/em> (the certificate of entitlement to health insurance, the paper that proves your right to French state healthcare and carries your French social security number), and on the strength of that document you apply for the carte vitale<\/em> (the green plastic health card you present at every doctor, pharmacy and laboratory, which can take six months or longer to arrive). While you wait, you do not go without care: you use your social security number and ask each practitioner for a feuille de soins<\/em> (the treatment form you send to your CPAM to be reimbursed for treatment you paid for upfront). Where registration drags on and treatment cannot wait, the guidance gives a telephone lifeline, the Overseas Healthcare Services on 0044 191 218 1999.<\/p>\n

Two household traps surround the S1, and both strike families rather than individuals. The first concerns dependants. Family members are classified under French rules, which do not always mirror British ones, so a partner or adult child you assumed was covered may need a separate basis of entitlement, and the guidance tells you to check with the local authorities when you register. The second concerns the dependant who starts drawing their own British State Pension: at that moment their cover as your dependant ends, and a fresh S1 in their own name must be requested and registered, because the gap between the two certificates is a gap with no cover at all. A further consequence follows S1 holders back across the Channel. Because the health service in Britain is residence-based, a Briton who has settled permanently in France should not expect to use it on visits to Britain, with one protected exception the guidance states for people covered by the Withdrawal Agreement: former residents who were living in the European Union on or before 31 December 2020 keep access once they hold a registered British-issued S1. The S1 therefore governs healthcare in both directions, and losing it, or letting it lapse between two statuses, has effects on each side of the Channel.<\/p>\n

The legal reason the S1 takes priority over any French affiliation sits in the coordination Regulations and in the French statute that mirrors them. Within the coordination system, each person is subject to the legislation of one State only, and the Court of Cassation (Cour de cassation<\/em>, France’s supreme court for civil and criminal matters) applies that single-legislation principle strictly. In its judgment of 4 September 2025, pourvoi number 23-10.486 (Court of Cassation, Second Civil Chamber, 4 September 2025, appeal no. 23-10.486<\/a>), the Second Civil Chamber recalled the definition at the heart of Regulation 883\/2004 on the coordination of social security systems: “le terme \u00ab l\u00e9gislation \u00bb d\u00e9signe, pour chaque \u00c9tat membre, les lois, r\u00e8glements et autres dispositions l\u00e9gales et toutes autres mesures d’application qui concernent les branches de s\u00e9curit\u00e9 sociale vis\u00e9es au deuxi\u00e8me.”<\/em> The term legislation covers every national measure of social security law, which is why an affiliation dispute is always, at bottom, a dispute about which State’s legislation applies. The French statute draws the same boundary from the domestic side. Article L. 160-6 of the Social Security Code<\/a> excludes from the French universal cover, among others, “Les personnes titulaires d’une pension \u00e9trang\u00e8re qui ne b\u00e9n\u00e9ficient pas par ailleurs d’un avantage viager d’un r\u00e9gime obligatoire de s\u00e9curit\u00e9 sociale fran\u00e7ais lorsque, en application d’un r\u00e8glement europ\u00e9en ou d’un accord international, la prise en charge de leurs frais de sant\u00e9 ainsi que de ceux des membres de leur famille qui r\u00e9sident avec elles rel\u00e8ve du r\u00e9gime \u00e9tranger qui sert la pension”<\/em>. Holders of a foreign pension whose healthcare, under a European regulation or an international agreement, remains the responsibility of the foreign scheme that pays the pension are outside the French universal system. In plain terms, a British pensioner whose S1 makes Britain responsible cannot simultaneously be affiliated in France as an inactive resident: the two covers exclude each other by design, and attempting to hold both produces the rejection letters this guide teaches you to challenge in its second part.<\/p>\n

B. How do you join PUMA through your CPAM when no S1 covers you?<\/h3>\n

Every Briton in France who cannot produce an S1, a posting certificate or an employed status meets the second door: the Protection universelle maladie<\/em> (the universal health cover that guarantees continuity of healthcare rights regardless of changes in personal circumstances, shortened to PUMA). The GOV.UK guidance states the residence condition in practical terms: three months of residence in France is the point from which a PUMA application can be made. That practical threshold opens the application; the statute then defines the right itself. Article L. 160-1 of the Social Security Code<\/a> provides: “Toute personne travaillant ou, lorsqu’elle n’exerce pas d’activit\u00e9 professionnelle, r\u00e9sidant en France de mani\u00e8re stable et r\u00e9guli\u00e8re b\u00e9n\u00e9ficie, en cas de maladie ou de maternit\u00e9, de la prise en charge de ses frais de sant\u00e9 dans les conditions fix\u00e9es au pr\u00e9sent livre.”<\/em> Anyone who works in France, or who lives there in a stable and regular manner without working, is covered for sickness and maternity costs. Two adjectives carry the entire weight of the provision. Stable residence is assessed under article R. 111-2 of the same Code<\/a>: “sont consid\u00e9r\u00e9es comme r\u00e9sidant en France de mani\u00e8re stable les personnes qui ont leur foyer ou le lieu de leur s\u00e9jour principal sur le territoire m\u00e9tropolitain, en Guadeloupe, en Guyane, \u00e0 la Martinique, \u00e0 La R\u00e9union, \u00e0 Saint-Barth\u00e9lemy ou \u00e0 Saint Martin.”<\/em> Those whose home or principal place of stay is in metropolitan France or the listed overseas territories are stably resident. Regular residence means lawful residence, which is why a Briton must hold the correct visa or residence permit before the CPAM can affiliate them: the newcomer who arrived on a long-stay visa and holds the matching carte de s\u00e9jour<\/em> (the residence permit issued by the prefecture) satisfies the condition, while the visitor who overstayed a short stay does not, a distinction developed in our companion guide for British newcomers choosing the right visa and challenging a refusal<\/a>.<\/p>\n

The route into PUMA then depends on whether you work. If you are employed in France, your employer must initiate registration through the employers’ online portal before you start work, and you complete the file at your CPAM as soon as employment begins. If you are self-employed, you register in that capacity and contribute through the corresponding fund. If you do not work at all, which is the position of the early retiree, the non-working partner and the person living on investment income, you apply directly to the CPAM of your home address, and your cover is financed either by contributions on your income or by the yearly levy described in the second part of this guide. In every case the sequence after acceptance is the same as for S1 holders: temporary social security number within one to three months, attestation de droits<\/em>, then carte vitale<\/em>, with feuilles de soins<\/em> bridging the wait. Two practical warnings apply specifically to British applicants. First, buy private health insurance for the interval between arrival and registration, because the three-month residence condition plus the processing time leaves a window in which you are lawfully present but not yet covered, and a hospital bill incurred in that window stays yours. Second, understand from the outset that French state cover is cost-sharing cover: the fund reimburses a defined share of each treatment and you pay the balance, called the ticket mod\u00e9rateur<\/em> (the patient’s share left after the state reimbursement), which is why most residents add a mutuelle<\/em> (the voluntary top-up insurance that pays some or all of the patient’s share). The CPAM card is therefore the foundation of your healthcare, not the whole building.<\/p>\n

One population needs particular care because it straddles the two doors: British employees and self-employed people who work across both countries. For them the question is not how to join but where they belong, and the answer comes from the coordination Regulations as applied by the French courts. In its judgment of 30 November 2023, pourvoi number 21-18.251, the Second Civil Chamber of the Court of Cassation, ruling on a person working in France and in Portugal, recalled the applicable-legislation rule of article 13(3) of Regulation 883\/2004<\/a>: “la personne qui exerce normalement une activit\u00e9 salari\u00e9e et une activit\u00e9 non salari\u00e9e dans diff\u00e9rents \u00c9tats membres est soumise \u00e0 la l\u00e9gislation de l’\u00c9tat membre dans lequel elle exerce une activit\u00e9 salari\u00e9e.”<\/em> A person who normally works as an employee in one Member State and as a self-employed person in another is subject to the legislation of the State of employment. The companion procedural Regulation 987\/2009 organises the dialogue between the two States’ institutions, with a provisional determination that becomes final after two months unless an institution objects. For a Briton posted by a British employer to France, the equivalent proof is the A1 certificate (the document confirming that the worker remains subject to British social security legislation during the posting): with a valid A1, the French funds have no claim on you, and any demand to register or contribute in France must be answered with the certificate, not with payment. The broader lesson is that affiliation follows the applicable legislation, never convenience: the Briton who registers with the CPAM while an S1 or an A1 points to Britain, or who keeps paying British National Insurance while French employment points to France, builds the exact double-affiliation dispute the courts then have to undo.<\/p>\n

II. What does it cost when the cover fails, and how do you challenge a refusal or a bill?<\/h2>\n

A. What happens when the CPAM says no, or URSSAF sends the yearly CSM bill?<\/h3>\n

Refusals arrive in three standard forms, and recognising yours determines everything that follows. The first is the CPAM’s refusal or silent failure to affiliate: the file is declared incomplete for lack of a translated birth certificate, a missing residence permit, or proof of three months’ presence, or the S1 is rejected because a dependant’s status is disputed. The second is the affiliation that succeeds but leaves you paying more than expected, because cost-sharing, the ticket mod\u00e9rateur<\/em> and the absence of a mutuelle<\/em> turn each treatment into an upfront payment followed by a partial refund. The third, and the most alarming for British early retirees living on capital, is the yearly demand from URSSAF (the network of agencies that collects French social security contributions, Unions de recouvrement des cotisations de s\u00e9curit\u00e9 sociale et d’allocations familiales<\/em>) for the cotisation subsidiaire maladie<\/em> (the yearly subsidiary health contribution charged to inactive PUMA members with capital income, shortened to CSM). Each has its own logic, and only the third needs a full explanation here, because it is the one no British newcomer anticipates.<\/p>\n

The CSM is the price the statute attaches to inactive membership of PUMA. Article L. 380-2 of the Social Security Code<\/a> opens with the principle: “Les personnes mentionn\u00e9es \u00e0 l’article L. 160-1 sont redevables d’une cotisation annuelle lorsqu’elles remplissent les conditions suivantes”<\/em>. The persons covered by article L. 160-1 owe a yearly contribution where two cumulative conditions are met: “1\u00b0 Leurs revenus tir\u00e9s, au cours de l’ann\u00e9e consid\u00e9r\u00e9e, d’activit\u00e9s professionnelles exerc\u00e9es en France sont inf\u00e9rieurs \u00e0 un seuil fix\u00e9 par d\u00e9cret. En outre, lorsqu’elles sont mari\u00e9es ou li\u00e9es \u00e0 un partenaire par un pacte civil de solidarit\u00e9, les revenus tir\u00e9s d’activit\u00e9s professionnelles exerc\u00e9es en France de l’autre membre du couple sont \u00e9galement inf\u00e9rieurs \u00e0 ce seuil”<\/em>, and “2\u00b0 Elles n’ont per\u00e7u ni pension de retraite ou d’invalidit\u00e9, ni rente, ni aucun montant d’allocation de ch\u00f4mage au cours de l’ann\u00e9e consid\u00e9r\u00e9e.”<\/em> Professional income in France below the decree threshold for you and, where relevant, your spouse or civil partner, and no retirement pension, disability pension, annuity or unemployment benefit received during the year. The contribution base is your capital income, property income, capital gains, non-professional business profits and similar resources, and the rate mechanism is fixed by article D. 380-1 of the same Code<\/a>: “Montant de la cotisation = 6,5 % \u00d7 (A-0,5 \u00d7 PASS) \u00d7 [1-R\/ (0,2 \u00d7 PASS)]”<\/em>, where A is the capital-income base, PASS the yearly social security ceiling, and R any residual professional income. In concrete terms, a British early-retired couple living in France on dividends and rental income, with no pension yet and no French salary, sits squarely inside the charge, while the same couple five years later, once a British State Pension is in payment and an S1 registered, leaves both PUMA and the CSM behind by operation of the article L. 160-6 exclusion described above. The gap years between arrival and State Pension age are therefore the expensive years, and they must be budgeted before the move, not discovered in the URSSAF envelope.<\/p>\n

The CSM also produces the most instructive case law for British readers, because the Court of Cassation has policed its recovery procedure to the advantage of contributors. In its judgment of 28 January 2021, pourvoi number 19-25.853, reported at the Court’s official record of the decision<\/a>, URSSAF had called the 2016 CSM in December 2017 and the contributor challenged the call as out of time. The Court restated the recovery rule of article R. 380-4: “la cotisation assise sur les revenus non professionnels mentionn\u00e9e \u00e0 l’article L. 380-2 du code de la s\u00e9curit\u00e9 sociale est appel\u00e9e au plus tard le dernier jour ouvr\u00e9 du mois de novembre de l’ann\u00e9e suivant celle au titre de laquelle elle est due. Elle est exigible dans les trente jours suivant la date \u00e0 laquelle elle est appel\u00e9e.”<\/em> The contribution is called no later than the last working day of November of the year following the year due, and becomes payable thirty days after the call. Crucially, a late call does not cancel the debt: “Le non-respect par l’organisme de recouvrement de la date limite mentionn\u00e9e par ce texte a pour seul effet de reporter le d\u00e9lai au terme duquel la cotisation devient exigible.”<\/em> Missing the deadline merely postpones when the contribution becomes payable. British recipients of a late CSM call should therefore read the decision correctly: lateness buys time, never cancellation, and the winning challenges attack the base, the threshold or the affiliation itself, for example by proving professional income above the threshold, a pension that removes you from the charge, or an S1 or A1 that removes you from PUMA altogether.<\/p>\n

B. How do you challenge a CPAM refusal or a CSM assessment before the deadlines expire?<\/h3>\n

French social security disputes follow a compulsory two-stage path, and the first stage is an internal appeal you must not skip. Article L. 142-4 of the Social Security Code<\/a> provides: “Les recours contentieux form\u00e9s dans les mati\u00e8res mentionn\u00e9es aux articles L. 142-1 , \u00e0 l’exception du 7\u00b0, et L. 142-3 sont pr\u00e9c\u00e9d\u00e9s d’un recours pr\u00e9alable, dans des conditions pr\u00e9vues par d\u00e9cret en Conseil d’Etat.”<\/em> Court proceedings in these matters must be preceded by a prior appeal. That prior appeal goes to the fund’s friendly-appeals commission, the commission de recours amiable<\/em> (the internal board within each fund that re-examines contested decisions before any judge sees them, shortened to CRA).<\/p>\n

Time is short: article R. 142-1 of the same Code<\/a> sets a strict time limit: “Cette commission doit \u00eatre saisie dans le d\u00e9lai de deux mois \u00e0 compter de la notification de la d\u00e9cision contre laquelle les int\u00e9ress\u00e9s entendent former une r\u00e9clamation.”<\/em> The commission must be seised within two months of notification of the disputed decision. A CPAM refusal received on 10 March must therefore be challenged before the CRA by 10 May, and a CSM assessment notified by URSSAF obeys the same two-month clock. Missing that first deadline ends the dispute before it begins, because the court will declare inadmissible any claim that skipped or outlasted the prior appeal.<\/p>\n

The second stage belongs to the courts. Article L. 142-8 of the Social Security Code<\/a> provides: “Le juge judiciaire conna\u00eet des contestations relatives : 1\u00b0 Au contentieux de la s\u00e9curit\u00e9 sociale d\u00e9fini \u00e0 l’article L. 142-1”<\/em>. The ordinary courts hear social security disputes, in practice the specially designated formation of the tribunal judiciaire<\/em> (the single first-instance civil and criminal court created in 2020, whose social-protection division hears these cases). Your file before either the CRA or the court must prove three things according to your door. For an S1 registration refusal, attach the S1 itself, proof of the pension or benefit that grounds it, proof of French residence, and the CPAM’s written refusal with its date, because the date sets the two-month clock. For a PUMA affiliation refusal, attach your passport and visa or carte de s\u00e9jour<\/em>, proof of three months’ presence such as leases and utility bills, and, where relevant, the employer’s registration or your self-employed declaration, since stable and regular residence is the precise point the fund contests. For a CSM assessment, rebuild the computation line by line: the capital-income base, the PASS figure for the year, any professional income that lifts you over the threshold, any pension or annuity received during the year that takes you out of the charge, and any S1 or A1 certificate that takes you out of PUMA for the period. The single-legislation judgments cited in the first part are your doctrinal anchor wherever double affiliation is at stake: the Second Civil Chamber’s 2025 ruling on the scope of legislation under Regulation 883\/2004, reported at the Court’s official record of the 4 September 2025 decision<\/a>, and its 2023 ruling on employed versus self-employed multi-State work, both teach that only one State’s legislation can apply, so a French demand that ignores a valid British certificate is an error of applicable law, not a debt to be paid.<\/p>\n

Three further protections complete the picture, one for travellers, one for patients needing planned treatment, and one for students. The GHIC (the British Global Health Insurance Card that replaced the EHIC for most British holders and covers medically necessary state treatment during temporary stays) and the surviving EHIC cover temporary presence, including student stays, but they never substitute for residence cover: a Briton living and working in France on a French contract cannot use a British-issued card for ordinary care once resident, while a properly affiliated resident can obtain a French-issued EHIC for travel, including visits to Britain. Planned hospital treatment in another State follows the S2 route (the prior-authorisation scheme for scheduled treatment abroad, whose French operation our companion guide on funded treatment in London explains), which requires the authorisation before departure, not an invoice afterwards. Students use the dedicated student GHIC or a valid student EHIC for the duration of their course. None of these instruments cures a defective residence file, and presenting a GHIC at the CPAM counter as if it were an S1 is among the most common British mistakes: the card proves a right to necessary care while visiting, never a right to join the French system while living there.<\/p>\n

Conclusion<\/h2>\n

A Briton in France after Brexit enters state healthcare through one of three doors, and the whole art lies in choosing the right one and keeping its paperwork current. The pensioner registers a British S1 at the CPAM and lives under British funding with French treatment. The worker is registered by the French employer or as self-employed and contributes through earnings. Everyone else who resides stably and lawfully joins PUMA directly, with the early retiree paying the CSM on capital income during the gap years before the State Pension and the S1 arrive. Refusals and bills obey a strict two-month internal appeal clock before the CRA, then the judicial court, and the single-legislation case law defeats any demand that ignores a valid S1 or A1. Keep your certificates, your residence proofs and every dated decision letter together from the day you arrive: in this field the file that wins is the file that was complete before the dispute began.<\/p>\n","protected":false},"excerpt":{"rendered":"

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