You moved to France after Brexit, you pay your French taxes, your children visit from Manchester or Bristol, and somewhere in a drawer — or in an email from your French bank adviser — sits a contract called an assurance-vie. In Britain, “life insurance” usually means a policy that pays out when you die. In France, the assurance-vie (literally “life insurance”) is something far broader: the country’s favourite long-term savings wrapper, held by tens of millions of residents, and at the same time one of the most powerful estate-planning tools French law offers. Money you place in it grows inside the contract, you can withdraw part of it while you are alive through a rachat (a partial or total surrender), and when you die the capital goes directly to the people named in your clause bénéficiaire (beneficiary clause) — outside your estate, under rules that look nothing like the British system. For a British family in France, that combination is both an opportunity and a trap. Draft the beneficiary clause well, and your spouse or children can receive hundreds of thousands of euros with a generous tax allowance. Draft it badly, fund it recklessly late in life, or leave a British will that contradicts it, and the people you meant to protect can end up fighting the insurer, the French tax office and each other. This guide explains, in plain English, how to set the contract up so it protects the right people, what tax France — and Britain — will take, and exactly how to challenge a refusal or a bill.

Reading note: this guide is the companion to our earlier walkthrough how a French assurance-vie shelters your savings after eight years and what your beneficiaries pay. That piece covers subscribing and the savings shelter; this one goes deeper into drafting and changing the beneficiary clause, the over-seventy tax trap and how to challenge an insurer or a tax bill.

I. How Do I Make My Assurance-Vie Protect the Right People After Brexit?

The single most important page of your contract is not the performance table and not the schedule of fees. It is the clause bénéficiaire, the beneficiary clause: the paragraph in which you designate (désignation) the person or people who will receive the capital (capital décès) when you die. Everything else in this first part flows from that clause — who it can name, how you can change it, and the one dramatic exception that lets disinherited children claw money back.

A. Who Should I Name in My Clause Bénéficiaire When My Family Straddles the Channel?

Start with the good news. Under Article L132-12 of the Code des assurances, “Le capital ou la rente stipulés payables lors du décès de l’assuré à un bénéficiaire déterminé ou à ses héritiers ne font pas partie de la succession de l’assuré.” In other words, the death capital paid to a named beneficiary is not part of your estate (succession). Your French notaire (the public officer who settles estates) does not distribute it among your heirs, and — crucially for many British families — the French forced-heirship rules do not grab it automatically. France protects children through the réserve héréditaire, the reserved share of the estate that must go to certain heirs. The Civil Code defines it in Article 912: “La réserve héréditaire est la part des biens et droits successoraux dont la loi assure la dévolution libre de charges à certains héritiers dits réservataires, s’ils sont appelés à la succession et s’ils l’acceptent.” The balance is the quotité disponible, the freely disposable share. But Article L132-13 of the Code des assurances states that “Le capital ou la rente payables au décès du contractant à un bénéficiaire déterminé ne sont soumis ni aux règles du rapport à succession, ni à celles de la réduction pour atteinte à la réserve des héritiers du contractant.” The capital is neither brought back into the estate (rapport à succession, the accounting mechanism that equalises gifts between heirs) nor reduced (réduction) for infringing the reserve. That is why advisers describe the assurance-vie as passing “hors succession” — outside the estate.

So who should you name? The classic British-in-France configurations each have a logic. Naming your spouse (husband, wife or PACS partner — the pacte civil de solidarité, France’s registered civil partnership) gives the survivor immediate, direct payment without waiting for the estate to be settled, which in a cross-Channel family can take a year or more. Naming children in equal shares mirrors most British wills. Naming children born or unborn (enfants nés ou à naître) future-proofs the clause if the family grows. And splitting the benefit — giving your spouse the usufruit (the lifetime right to use the capital and take income from it) and your children the nue-propriété (the bare ownership that becomes full ownership when the usufruct ends) — is the sophisticated French answer to the second-marriage or blended-family problem: the survivor is housed and funded for life, while the children’s eventual share is locked in. This split, called a démembrement de la clause bénéficiaire (division of the beneficiary clause), is expressly recognised in the tax rules, which treat the bare owner and the life tenant as beneficiaries in proportion to their shares. One practical warning from the case law: be precise. Vague wording such as “my heirs” without proportions, or a clause that still names a former spouse after a divorce, is the single most common source of litigation. Name each beneficiary with full civil details — surname, birth name, first names, address, date of birth — state the percentage each receives, and name substitute beneficiaries (bénéficiaires de second rang) in case one of them dies before you. Keep a copy of every version, and check the clause after every birth, death, marriage or divorce.

A question British readers ask constantly is whether their English will governs the French contract. It does not. The beneficiary clause lives inside the insurance contract, not inside your will, and it is the clause — not the will — that tells the insurer whom to pay. If your English will leaves everything to your daughter but your French clause still names your brother, the insurer pays your brother. Coordinate the two documents: either keep the clause as the master document for the French capital and refer to the contract in your will, or change the clause to match the will. Never assume one automatically updates the other.

B. Can I Change My Mind — and What Stops Me From Doing So?

Yes — until your death, you can change the beneficiary clause, and the official guidance says so plainly: Until your death, you may change the beneficiary clause of your contract, as the service-public.fr page on changing the clause confirms. In practice you do it by contacting the bank or insurer that manages the contract and signing an avenant (a contractual amendment, a supplementary document recording an agreed change, signed and dated by you and registered by the insurer), or by making the new designation in your will. The same official page explains the letter to send: dated and signed, with the contract references, the full identity and address of the new beneficiaries and the split of the capital between them — and it urges you to keep the insurer’s acknowledgement of receipt (accusé de réception) or a copy of the amendment. That acknowledgement is your proof if the insurer later claims it never received your instructions.

Two court decisions every British policyholder should know make this freedom concrete. First, the Cour de cassation (France’s supreme court for civil matters) held that no symmetry of form is required: if you first named your beneficiaries in a formal will (testament authentique, a will dictated before two notaries or one notary with witnesses), you may still replace them later by a simple contract amendment. In its ruling of 3 April 2019, First Civil Chamber, appeal no. 18-14.640, the Court approved judges who had validated amendments of 2005 and 2006 replacing a 1997 testamentary clause, holding “que la modification des bénéficiaires pouvait intervenir soit par voie d’avenant au contrat, soit en remplissant les formalités édictées par l’article 1690 du code civil, soit par voie testamentaire, sans qu’il soit nécessaire de respecter un parallélisme des formes entre la voie choisie pour la désignation initiale et celle retenue pour la modification” — the change may be made by amendment, by serving notice under Article 1690 of the Civil Code, or by will, with no need to use the same form as the original designation. For a British client, the lesson is liberating: you are not locked into a clause drafted decades ago in a Paris notary’s office. A signed amendment sent to the insurer works.

But there is one hard limit, and it surprises many Britons: acceptance. Once the person you named has formally accepted the benefit (acceptation) under the statutory procedure, the clause becomes irrevocable — you can no longer change the beneficiary, and as the official guidance puts it, you can no longer carry out transactions that undermine the contract. Do not invite or sign an acceptance unless you are certain the designation is final; a standard-form acceptance slipped into a pile of bank paperwork has destroyed many estate plans. The Cour de cassation drew the mirror-image line in its ruling of 17 November 2021, First Civil Chamber, appeal no. 20-12.711: “M. [N], n’ayant pas accepté le bénéfice des contrats d’assurance sur la vie avant leur modification, ne pouvait se prévaloir d’aucun droit acquis à leur capital” — having not accepted before the change, he had no vested right in the capital. Before acceptance, the named beneficiary has only an expectation; after acceptance, a locked-in right. Check whether any acceptance exists before you assume you can rewrite the clause.

The same 2021 decision answers a painful question for families with an elderly British parent in France: what happens when the policyholder loses mental capacity and a guardian (tuteur, the person appointed under a tutelle, the full guardianship regime for adults who can no longer look after themselves) rewrites the clause? The Court accepted that a guardianship judge (juge des tutelles) may authorise the guardian to change the beneficiary designation toward the legal heirs — and it added a strict procedural sting: a relative whose rights the order does not change must appeal within fifteen days of the order itself, not years later when the succession opens. If you discover that a vulnerable parent’s clause was rewritten under guardianship, do not wait for the funeral to react. Take advice immediately, diary the fifteen-day limit, and consider an appeal (appel) or the ordinary remedies for protecting your own interests.

Finally, the great exception to “outside the estate”: primes manifestement exagérées — manifestly excessive premiums. As Article L132-13 of the Code des assurances puts it: “Ces règles ne s’appliquent pas non plus aux sommes versées par le contractant à titre de primes, à moins que celles-ci n’aient été manifestement exagérées eu égard à ses facultés.” Premiums that were manifestly excessive in light of the policyholder’s means can be brought back into the estate accounting and reduced to protect the children’s reserve. The Cour de cassation polices this test strictly. In its ruling of 19 December 2024, Second Civil Chamber, appeal no. 23-19.110, a mother had concentrated nearly her whole wealth on a single contract benefiting a charity, and the appeal court had ordered €130,000 returned to the estate simply because the payment deprived the daughter of her reserve. The supreme court quashed that reasoning: “En statuant ainsi, la cour d’appel, qui s’est fondée sur un critère étranger à l’appréciation du caractère manifestement exagéré des primes versées, a violé le texte susvisé.” Infringing the reserve, by itself, is the wrong test. Excessiveness is judged at the time of each payment, against the age, wealth, family situation and needs of the payer, and against whether the contract was useful to them. For British families, the practical message cuts both ways. If you are the child of a parent who poured everything into a late-life contract for a new partner or a cause, you can challenge — but you must prove excessiveness against your parent’s means at the time, not merely that your reserve suffered. If you are the policyholder, keep evidence that each premium left your lifestyle intact: bank statements, the proportion of your wealth paid in, and a note of why the contract suited you (a conservative savings vehicle in retirement, for example). A single massive payment at eighty-nine that empties every other account is the textbook case that fails; steady premiums that never threatened your standard of living are the textbook case that survives.

II. What Tax Will France — and Britain — Take, and How Do I Challenge the Bill?

French tax on the assurance-vie follows two completely different tracks, and confusing them is the costliest mistake British policyholders make. Track one taxes the money while you are alive, when you withdraw gains. Track two taxes the capital your beneficiaries receive when you die. The rates, the allowances (abattements, the tax-free slices) and the remedies differ entirely — and on top of both sits the British question, because HM Revenue and Customs may want a share too. Take the two tracks in turn.

A. How Is My Family Taxed When I Die — the 152,500-Euro Allowance, the Over-70 Rule and the Residence Trap?

The hinge of the whole system is your seventieth birthday — more precisely, the age at which each premium (prime, each payment into the contract) was made. Premiums paid before seventy fall under Article 990 I of the Code général des impôts (the general tax code). Each beneficiary enjoys a tax-free allowance of €152,500 on what they receive; above that, the levy (prélèvement) is 20% on the taxable slice up to €700,000 and 31.25% beyond. In the statute’s own words: “Le prélèvement s’élève à 20 % pour la fraction de la part taxable de chaque bénéficiaire inférieure ou égale à 700 000 €, et à 31,25 % pour la fraction de la part taxable de chaque bénéficiaire excédant cette limite.” Note that the allowance is per beneficiary, not per contract: three children each receiving €150,000 from pre-seventy premiums each fall within their own €152,500 slice. And a surviving spouse or PACS partner who is already exempt from French succession duties pays no 990 I levy either — the statute relieves from the levy any beneficiary who is already exempt from French gratuitous-transfer duties, referring to the standard family exemptions. For most British couples in France, the message is reassuring: capital passing to the survivor under a pre-seventy-funded contract is sheltered.

Premiums paid after seventy fall under the harsher Article 757 B of the Code général des impôts: “Les sommes, rentes ou valeurs quelconques dues directement ou indirectement par un assureur, à raison du décès de l’assuré, donnent ouverture aux droits de mutation par décès suivant le degré de parenté existant entre le bénéficiaire à titre gratuit et l’assuré à concurrence de la fraction des primes versées après l’âge de soixante-dix ans.” Only the post-seventy premiums (not the growth on them) enter the succession-duty calculation, taxed at the normal kinship scale — but the single global allowance for all beneficiaries combined is just €30,500: “L’ensemble des sommes, rentes ou valeurs visées au I dues à raison du ou des contrats conclus sur la tête d’un même assuré fait l’objet d’un abattement global de 30 500 €.” Between two strangers the duty rate can reach 60%; between parent and child the familiar 5–45% scale with the €100,000 parent-child allowance applies to the rest. The planning lesson is obvious and entirely lawful: fund the contract generously before seventy, because every euro paid in afterwards buys far less tax shelter. The litigation lesson is equally clear: when the tax office assesses your family under 757 B, check which premiums it counted. Growth attributable to pre-seventy money, and premiums the insurer cannot date, are frequent assessment errors worth a formal complaint (réclamation).

Then comes the residence trap, the genuinely Brexit-flavoured part. French succession duties apply according to the deceased’s tax residence (domicile fiscal), and Article 750 ter of the Code général des impôts draws the map: worldwide taxation “lorsque le donateur ou le défunt a son domicile fiscal en France au sens de l’article 4 B” — when the deceased was fiscally domiciled in France — and taxation of French assets only when they were not. A British retiree who has lived in the Dordogne for a decade, with their home, bank accounts and daily life in France, will almost certainly count as French-domiciled, so all of their contracts — including any still sitting in Britain — fall within the French net. Conversely, a beneficiary who lives in France can be taxed here even on a British non-resident’s contract in some configurations, because the same statute looks at the beneficiary’s residence history too. Map every contract against these residence rules before anyone signs anything: the family that assumes “the British policy is Britain’s business” is the family that receives two assessments for the same capital. Britain, for its part, applies its own inheritance tax to the worldwide estate of a UK-domiciled person — see the official gov.uk inheritance tax guide — and there is no comprehensive Franco-British treaty eliminating death duties on insurance capital the way the income-tax treaty eliminates some double taxation. Each country taxes under its own rules; unilateral relief or treaty credits may soften the blow, but only if the executors claim them properly and on time. Get Franco-British advice before the death, not after the assessment.

How do you challenge a death-benefit bill in practice? Work in order. First, demand the insurer’s breakdown: premiums by date, growth allocation, allowances applied per beneficiary. Errors in dating premiums around the seventieth birthday are common and always favour the tax office. Second, file a written réclamation with the tax office that issued the assessment, attaching the contract history and the correct allowance computation, within the statutory time limit shown on the notice — missing the deadline kills even a winning case. Third, if the refusal stands, appeal to the administrative court (tribunal administratif). Fourth, where the dispute is really about who the money belongs to — a contested beneficiary clause, an alleged excessive premium, a guardianship amendment — that fight belongs before the civil courts (tribunal judiciaire), and the tax appeal may need to wait for its outcome. Keep every envelope, every acknowledgement, every statement: limitation periods (délais) decide these cases as often as the merits do.

B. What If I Need the Money While I Am Alive — Withdrawals, the Eight-Year Clock and the British Tax Return?

Withdrawing money from your own contract — the rachat — is taxed only on the gain, never on the return of your own premiums. The statute defines the gain as the difference between what you receive and the premiums you paid, and Article 125-0 A of the Code général des impôts grants, for contracts of eight years or more, “un abattement annuel de 4 600 € pour les contribuables célibataires, veufs ou divorcés et de 9 200 € pour les contribuables mariés soumis à imposition commune” — an annual allowance on the taxable gains, €4,600 for a single person and €9,200 for a jointly taxed married couple, across all of their contracts. Below the allowance, after eight years, the gain escapes income tax (social charges, the prélèvements sociaux taken at source for French residents, are a separate layer your adviser should quantify). Above it, you choose each year between the flat rate and the progressive scale. The official service-public.fr guide to taxing assurance-vie income walks through the mechanics: gains are first hit with a 12.8% non-final withholding (prélèvement forfaitaire non libératoire, a down-payment against your final tax, not the final tax itself), then declared on your French return where you opt for the 12.8% flat rate or the progressive scale (barème progressif), with any excess refunded. Small earners can be dispensed from the withholding in advance — for income received in 2026, a reference tax income (revenu fiscal de référence) for 2024 below €25,000 single or €50,000 joint, requested from your bank before 30 November of the preceding year. The eight-year clock (antériorité fiscale) runs from the first payment into the contract, not from each top-up — so an old contract you keep feeding stays old, and opening a new contract at sixty-eight to “start fresh” resets the clock for that money. Never close your oldest contract lightly: its seniority is a tax asset.

Three British-specific wrinkles deserve emphasis. First, residence timing. If you take a large gain in the year you leave Britain, both countries may claim the same gain — France because you live here now, Britain because of split-year or temporary-non-residence rules. The France–UK double-tax treaty allocates taxing rights over such income, and the official gov.uk guide to tax on foreign income explains how UK residents report overseas investment gains; keep the French calculation, the dates of residence change, and the proof of French tax paid, because the foreign tax credit is only as good as its paperwork. Second, the contract itself. A French assurance-vie held by a French resident is taxed as described above; a British investment bond you brought with you is taxed under different mechanics and must be disclosed to the French tax office — never assume the British wrapper enjoys the French eight-year allowance. Third, social charges. Many British newcomers discover the 17.2% social levies only when the bill arrives. Employees and pensioners affiliated to the French health system generally pay them on gains; some posted workers and holders of S1 health cover certificates may be exempt from part of them. The position turns on your exact affiliation on the date of the gain, so pin it down before a large withdrawal, not after.

Challenging a lifetime-tax bill follows the same discipline as at death. Check the allowance first: did the assessment apply the €4,600 or €9,200 slice, the correct marital status, and all contracts aggregated correctly? Check the dates: was the contract truly under eight years old, measured from the first premium? Check the withholding: was the 12.8% down-payment credited against the final liability, and was a dispensation you properly requested honoured? Then complain in writing with the numbers, and escalate to the administrative court if needed. Against an insurer — a delayed payout after a bereavement, a refusal to register your amendment, a surrender value that looks wrong — complain in writing to the insurer’s complaints department, then to the insurance mediator (médiateur de l’assurance), then to the civil courts. And keep the contract alive in your file: statements, amendments, acceptances or refusals, medical certificates for early-release exemptions (dismissal, early retirement or second- or third-category invalidity can exempt gains whatever the contract’s age). The family that keeps paper wins challenges; the family that trusted a phone call loses them.

Conclusion

For a British family settled in France, the assurance-vie is neither a exotic gamble nor a bureaucratic formality. It is the instrument that decides who receives your French savings, how fast, and at what tax cost — and it does so largely outside your will and outside your estate. Name your beneficiaries with full civil details and percentages, keep the clause aligned with your English will, change it by signed amendment whenever life changes, and never accept — or let anyone accept — a designation you may want to revisit. Fund the contract early, because premiums paid before seventy buy a €152,500 allowance per beneficiary while later premiums buy a shared €30,500 and ordinary succession duties. Guard the eight-year clock on withdrawals, choose the flat rate or the scale deliberately, and remember that Britain may tax the same money under its own rules. And when something goes wrong — an insurer that will not pay, a beneficiary who should never have been removed, a premium history the tax office misdates, an assessment that ignores your allowance — challenge it in the right order, in writing, and within the time limit. The law gives you the tools; the paperwork decides whether they work.

Need a quick opinion on your case

Every family, every contract and every deadline is different. For a telephone consultation within 48 hours with a lawyer of the firm, call +33 6 46 60 58 22. You can also reach us through our contact page. We advise British clients across Paris and the Île-de-France, and throughout France, on beneficiary clauses, excessive-premium disputes and Franco-British tax challenges.