You did everything the brochures told you to do. You worked in Britain, built up a pension, took the 25% tax-free lump sum that London allows, and moved to France for the light, the space and the lower pace. Then the first French tax return arrives, and with it a shock: the lump sum that was tax-free in Britain is taxable in France, your monthly pension lands in the progressive scale, and a neighbour with a teacher’s pension pays nothing at all in France on what looks like the same income. Nothing here is random. Since Brexit you are a third-country national, yet the tax treaty signed in London on 19 June 2008 still decides which of your pensions France may tax, which ones only Britain may tax, and how the bill is softened when both countries claim a share. This article explains the three blocks that govern your retirement income in France: the private pensions France taxes, including the lump sum; the public-service pensions France cannot tax; and the remedies when the French tax office sends the wrong bill. Every French term is explained as it appears, and every decisive rule is tied to its official text.<\/p>\n
The starting point is residence. Under Article 4 B of the French General Tax Code (Code g\u00e9n\u00e9ral des imp\u00f4ts)<\/a>, you are treated as having your tax home (domicile fiscal) in France if France holds your household (foyer) or your principal place of stay. A British retiree living year-round in the Dordogne with their spouse is therefore, in principle, liable to French income tax on worldwide income, including every pound of UK pension. The treaty then carves out the exceptions, and the exceptions are where the money is.<\/p>\n Article 18 of the France-United Kingdom treaty of 19 June 2008, published by Decree No 2010-20 of 7 January 2010 and explained in the official BOFiP commentary on the Franco-British treaty<\/a>, states the private-pension rule in one sentence: pensions and similar payments made to a resident of one contracting State in respect of past employment are taxable only in that State. In plain English, once you are resident in France, your UK State Pension, your former employer’s final-salary or defined-contribution pension, and your personal pension (SIPP) drawings are taxable in France and, under the treaty, no longer taxable in the United Kingdom on that basis. Britain gives up the taxing right; France takes it in full.<\/p>\n That single sentence reorganises your whole return. Your UK State Pension, which the British system pays gross, must be declared on the French return as foreign pension income. It joins the progressive scale (bar\u00e8me progressif), meaning it is added to your other income and taxed at the marginal rate your total income reaches, after the standard 10% allowance (abattement) that France grants on pensions. The same applies to regular drawdown from a SIPP taken flexibly (flexi-access): each withdrawal is pension income taxable in France in the year you receive it. There is no French equivalent of the British Personal Allowance sheltering the first slice; the French calculation starts from the household’s total net income with its own family-based dividing mechanism (quotient familial), a system that divides taxable income into shares according to household composition before applying the scale.<\/p>\n One piece of good news survives the move, and it comes from the British side. The British government confirms that your State Pension keeps its yearly increase when you retire to France, because France sits inside the European Economic Area: in the official words, your State Pension will only increase each year if you live in the European Economic Area, Gibraltar, Switzerland or listed agreement countries. France qualifies, so the triple lock or its successor follows you to France, and each increase simply joins the French taxable amount the following year. Do not confuse this with countries outside that list, where the pension is frozen at its first rate; a British retiree in France is on the rising path, and the rising path is declared in France.<\/p>\n British tax deducted at source by mistake is the most common early leak. Some UK payers keep applying emergency PAYE codes after you leave, or HMRC continues to treat you as taxable. The treaty says Britain should not tax the pension of a French resident, so any British withholding on Article 18 pensions is reclaimable in the United Kingdom, while France taxes the gross amount and eliminates any residual double charge through its own credit mechanism described in Part II. Keep every P60, every pension payslip and every HMRC coding notice: they are the exhibits that prove where the money was taxed and why France must give the matching relief.<\/p>\n Social charges deserve their own warning. On top of income tax, France levies social contributions (contributions sociales): the general social contribution (CSG, contribution sociale g\u00e9n\u00e9ralis\u00e9e), the contribution repaying the social debt (CRDS, contribution au remboursement de la dette sociale), and the solidarity contribution for autonomy (CASA, contribution additionnelle de solidarit\u00e9 pour l’autonomie). Foreign-source pensions of French residents are in principle exposed to these levies when the pensioner is insured in the French health system, and the exposure can surprise because the British reader has no equivalent. The Conseil d’\u00c9tat confirmed the strictness of this regime in a 25 October 2024 decision concerning a Swiss reversion pension paid as a single capital sum, where the Lyon appeal court had tried to cap the social contributions by reference to the French-source pension and the high court quashed that approach as an error of law, holding that the European coordination regulation provided no such ceiling: Conseil d’\u00c9tat, 25 October 2024, No 473997<\/a>. The facts there were Swiss, not British, and post-Brexit Britain sits under a different coordination protocol, but the direction of travel is clear: a foreign pension paid in capital does not escape French social levies by its shape alone, and anyone holding an S1 healthcare certificate or paying into the French system should have the CSG position checked line by line rather than assumed away.<\/p>\n Here is the misunderstanding that costs British retirees the most money. The British government states the domestic rule plainly: you can usually take up to 25% of the amount built up in any pension as a tax-free lump sum, capped at \u00a3268,275, with tax taken off the remainder before you get it, as explained on the official GOV.UK pension tax page<\/a>. Tax-free there means free of British tax. It does not bind the French tax office. Once you are resident in France, French domestic law classifies retirement benefits paid as capital (prestations de retraite servies sous forme de capital) as taxable income: Article 79 of the General Tax Code<\/a> provides that pensions and life annuities form part of overall income, adding expressly that the same applies to retirement benefits paid in capital form. The lump sum therefore enters the French progressive scale in the year of payment, and a \u00a360,000 or \u00a3100,000 lump sum can push the whole household into a marginal rate it would never otherwise reach.<\/p>\n French law then offers a genuine but conditional safety valve, and the conditions are everything. Article 158, 5, b quinquies of the General Tax Code<\/a> routes capital pension benefits into the salaries-and-pensions category while pointing to the flat-rate option, and Article 163 bis, II of the same Code<\/a> provides that such benefits may, on the express and irrevocable request of the recipient, be subjected to a levy (pr\u00e9l\u00e8vement) at 7.5% which discharges the income from income tax, assessed on the capital reduced by a 10% allowance, available when the payment is not split and the recipient shows that the contributions paid while building the rights were deductible from taxable income or related to exempt income in the State that had the right to tax it. The administrative court of appeal in Bordeaux restated the purpose of the device in these terms: the legislature intended to open to individual taxpayers holding capital-paid retirement benefits who find advantage in it the option, in place of progressive-scale taxation, of a 7.5% flat levy discharging income tax, as held in CAA Bordeaux, 3 December 2025, No 23BX02970<\/a>. Seven and a half per cent after a 10% allowance, instead of the household marginal rate, is often the difference between a manageable bill and a ruined year, but the option must be expressly claimed on the return for the payment year; it cannot be reconstructed afterwards, and it is irrevocable once made.<\/p>\n The Bordeaux judgment of December 2025 is also the leading cautionary tale, because the taxpayers there lost the 7.5% they had claimed. An employee of an international group had received \u20ac411,091 in capital from an employer profit-sharing vehicle and claimed the flat levy as a retirement benefit. The court examined the two employer schemes side by side: a genuine company retirement plan paying an annual pension worth 3.2% of eligible pay per year of membership, funded by deductions from wages, and a separate profit-sharing fund paying annual bonuses into a dollar fixed-income account. It held that the disputed payment did not have the character of a retirement benefit paid in capital but fell into the category of foreign investment income (revenus de capitaux mobiliers), so that the 7.5% option was unavailable. The administration was even allowed to change the legal basis mid-proceedings to Article 120, 6\u00b0 of the General Tax Code<\/a>, covering income from capitalisation contracts taken out with insurers outside France, and the court limited the taxable amount to \u20ac257,135, the gain portion of the payment, the contributions element escaping tax. The lesson for a British reader is direct: not every employer top-up, share-plan cash-out or severance payment attached to your departure qualifies as a pension lump sum, and labelling it as such on the return invites a reassessment (redressement) plus penalties. Before claiming the 7.5%, check the scheme documents for what the payment legally rewards: years of pensionable service funded by deductible contributions points to Article 163 bis, while a bonus pool, a profit share or a severance sweetener points to Article 120 and tax on the gain only.<\/p>\n Two practical consequences follow. First, timing matters enormously. The 7.5% levy requires a payment that is not split (versement non fractionn\u00e9): phasing a SIPP across several tax years is excellent planning for the progressive scale but destroys the flat-rate option for each fragment, while a single-year encashment preserves it at the cost of one heavy year. Second, the deductibility condition looks backwards across borders: contributions to a British registered pension scheme that attracted UK tax relief count as deductible in the State that had the taxing right, which is normally satisfied for an ordinary UK occupational or personal pension, but exotic top-ups, employer promises never routed through a recognised scheme, or transfers through vehicles whose contributions were never relieved anywhere will fail the test. Take advice before the payment date, not after the assessment notice, because the express request must accompany the return of the payment year.<\/p>\n Article 19 of the 2008 treaty, headed public functions (fonctions publiques), reverses the Article 18 rule for service to the State itself. Pensions paid by a contracting State, one of its local authorities or, for France, a public-law legal person, directly or from funds they have set up, to an individual for services rendered to that State or body, are taxable only in that State. A British civil service pension, a local-government pension, a police or fire-service pension, an armed-forces pension and, in most cases, an NHS pension paid out of the public scheme therefore remain taxable only in the United Kingdom even after you settle permanently in France. France must exempt them: the treaty gives Paris no taxing right at all over these payments, and the French return should show them only to document the exemption, never to tax them.<\/p>\n The same Article 19 contains a nationality exception that decides many Franco-British household cases, and it must be read word for word. The exemption in favour of the paying State falls away, and the pension becomes taxable only in the other State, where the individual is a resident of that other State and holds its nationality without at the same time holding the nationality of the paying State. A French national living in France and drawing a British civil-service pension is therefore taxable in France, not Britain; a British-only national in the same armchair is taxable only in Britain; a dual Franco-British national stays under the paying-State rule because the exception requires holding the residence-State nationality alone. Households where one spouse is French and the other British, very common in the British-desk caseload, must apply the test person by person and pension by pension rather than assuming one household answer.<\/p>\n Two further refinements catch the unwary. First, paragraph 3 of Article 19 sends pensions for services performed in connection with a business activity carried on by the State back to the ordinary Articles 15 to 18, meaning employment that looks public but operates commercially, such as certain formerly nationalised-industry schemes now in private hands, may fall outside the government-service protection entirely. Second, paragraph 4 of the same article creates mirror-image carve-outs with their own conditions: French pensions covered by paragraph 4 of Article 81 of the General Tax Code are exempt from British tax whatever the pensioner’s nationality, while specified British armed-forces, reserve and war-injury pensions are exempt from French tax provided they are exempt from British tax, with any non-exempt fraction reverting to the paragraph 2 rule. Teachers deserve a special mention because the fact pattern recurs: a pension from the English Teachers’ Pension Scheme is generally treated as government-service pay taxable only in Britain for a British national in France, whereas service in a fully private school points back to Article 18 and French taxation, so the employer’s legal nature at the time of service, not the job title, controls the answer.<\/p>\n The administrative courts police this boundary exactly as written, and the clearest recent illustration, though decided under the Norwegian convention whose Article 19 mirrors the British one, shows the method French judges apply to every government-service clause. A retired Norwegian civil servant domiciled in France argued that his public pension should simply vanish from the French calculation. The Bordeaux court rejected the claim in CAA Bordeaux, 3 October 2023, No 21BX02149<\/a>, recalling that a French resident is in principle liable on worldwide income subject to treaty carve-outs, and holding that where the convention reserves the taxing right to Norway it still provides that ability to pay is measured on all income whatever its origin, with double taxation eliminated by a credit equal to the French tax on the Norwegian-taxable income. The analogy for a British Crown pension is exact: exclusive British taxation does not mean the pension is invisible in France, it means France computes on everything and then wipes out precisely the French tax on the British-reserved pension through the credit mechanism of Article 24, a mechanism whose details decide real bills and which the next section explains.<\/p>\n Elimination of double taxation for French residents is governed by Article 24, paragraph 3 of the treaty, and its two-track design rewards careful reading. Revenues taxable only in Britain under the treaty enter the French computation to preserve the progressive rate, then attract a credit equal to the French tax on those revenues where the resident was subject to British tax on them, under sub-paragraph (i), while the listed investment and business items attract a credit equal to the British tax actually paid capped at the French tax, under sub-paragraph (ii). The first track is the one that protects Crown pensions and any other Britain-reserved income: France taxes everything on paper, then cancels exactly the French tax slice belonging to the British-reserved pension.<\/p>\n The Conseil d’\u00c9tat has now locked in the taxpayer-friendly reading of that first track in the leading Franco-British case, an opinion given on 12 February 2020 that every adviser should know. Asked whether the credit requires the income to have borne British tax in fact, the high court answered that the condition means the income must be included in the base of a British tax listed in the treaty, without the resident being exempt by status or activity, whereas the condition does not require the income to have been subjected to effective taxation. It added the operational test: the condition must be regarded as satisfied where the French resident shows the income was declared in Britain as falling within a listed British tax, even where no British tax was actually paid on it. Both propositions are directly quotable: the condition does not require effective taxation, and declaration in the British base suffices. The references are Conseil d’\u00c9tat, opinion of 12 February 2020, No 435907<\/a>, which also confirms that French social contributions form part of the French tax covered by the treaty and need no British equivalent levy to attract their own matching credit. Concretely, a British teacher’s pension declared to HMRC but covered by the Personal Allowance, hence bearing zero British tax, still generates the full French credit cancelling the French tax computed on it, provided the declaration evidence is kept.<\/p>\n When the assessment notice (avis d’imposition) gets any of this wrong, and they regularly do, the remedy ladder is standard but time-limited. Start with the friendly claim (r\u00e9clamation contentieuse) to the tax office that issued the notice, attaching the treaty articles, the HMRC declaration proof, the scheme rules showing the public or private nature of the pension, and the computation showing the credit claimed; many Crown-pension errors are corrected at this stage once the nationality and scheme evidence is complete. If the office maintains the charge, appeal to the administrative court (tribunal administratif) of your French home within the statutory deadline stated on the rejection, where the Bordeaux and Conseil d’\u00c9tat decisions above are the authorities to plead. Where both States claim the same income contrary to the treaty, the mutual-agreement procedure before the two tax authorities is available: the official commentary recalls that the request must be filed within three years of the first notification of the treaty-offending measure or, a favourable specificity of this treaty, within six years after the end of the fiscal year of the disputed charge, whichever suits the taxpayer, with arbitration if the authorities fail to agree within two years, as set out in the official BOFiP commentary on the Franco-British treaty<\/a>. Never let a wrong assessment become final through inaction: French limitation periods reward the taxpayer who files early and punish the one who waits for the next return to mention the problem.<\/p>\n Two final cautions close the circle. Pension transfers to non-British schemes after the move, the products marketed to expatriates under names such as recognised overseas schemes, can trigger British exit charges and land in a French category harsher than the pension treatment left behind; no transfer should be signed without a written analysis of both sides’ treatment first. And keep the paper for every year: P60s, HMRC self-assessment returns, S1 forms, scheme booklets, lump-sum option letters and every French notice. In treaty litigation the taxpayer who proves the paper trail wins the credit, and the one who reconstructs it from memory funds the Treasury.<\/p>\n The map is now complete enough to act on. Private pensions follow you into French tax under Article 18, the lump sum loses its British tax-free status at the French border but may qualify for the 7.5% flat levy on express claim, and Crown pensions stay in Britain under Article 19 unless the nationality exception moves them. The Article 24 credit, read as the Conseil d’\u00c9tat reads it, ensures that income Britain alone may tax costs you no French tax either, even where Britain in fact collects nothing. Measure each pension against its treaty article before the payment date, claim the flat rate expressly where it fits, file the friendly claim at the first wrong notice, and the system works as designed. Where the file is already tangled, an adviser who pleads these exact texts is the difference between paying twice and paying right.<\/p>\n Our firm offers a telephone consultation within 48 hours with a lawyer of the firm to review your UK pension position, your lump-sum option, your Crown-pension exemption or your French reassessment. First telephone consultation: 80 EUR including VAT. Call 06 46 60 58 22<\/a>, or write via our contact page<\/a> with your date of arrival in France, your residence permit, your pension statements and lump-sum letter, and the French assessment you wish to challenge.<\/p>\n","protected":false},"excerpt":{"rendered":" UK tax-free lump sum taxed in France, SIPP and State Pension declaration, 7.5% flat levy, Crown pensions exempt under Article 19, Article 24 credit and how to challenge the bill.<\/p>\n","protected":false},"author":251031309,"featured_media":16395,"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-2130851","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-british-desk","category-decryptage"],"yoast_head":"\nI. Your private UK pensions are taxable in France, including the lump sum London calls tax-free<\/h2>\n
A. State Pension, workplace and personal pensions: taxable only in France once you live there<\/h3>\n
B. The 25% tax-free lump sum is tax-free in Britain and taxable in France, with one narrow escape at 7.5%<\/h3>\n
II. Crown and public-service pensions stay taxable only in Britain, and a wrong French bill can be cancelled<\/h2>\n
A. Government-service pensions France must leave alone, and the nationality trap inside the exemption<\/h3>\n
B. Challenging the assessment: the Article 24 credit, the Conseil d’\u00c9tat safety net, and the remedies that work<\/h3>\n
Conclusion<\/h2>\n
Need a quick opinion on your case<\/h2>\n