Buying en viager looks like a bargain: a Paris flat or a stone house in the Dordogne offered at a fraction of its market value, with the balance paid as a monthly pension to an elderly seller for the rest of their life. For foreign buyers browsing French listings from London, New York or Geneva, the arithmetic can look irresistible. It is also one of the most technically demanding purchases in French property law. The price depends on life expectancy, the seller usually keeps living in the property, a single missed annuity payment can unwind the whole sale, and the seller’s heirs can attack the transaction years later if the figures were wrong.
This guide explains how a vente en viager (sale in exchange for a lifetime annuity) works, which clauses protect each side, and where courts actually cancel or unwind these sales. It is written for non-resident and foreign buyers, with the French legal terms you will meet at the notary’s office, the court decisions that shape the risks, and the practical checks to run before you sign.
I. How a viager sale works: price, annuity and occupancy
A. The bouquet, the rente and the seller’s right to stay
A vente en viager is an ordinary sale of a property in which all or part of the price takes the form of a rente viagère (lifetime annuity) paid to the seller until their death. The Civil Code allows this structure expressly: “La rente viagère peut être constituée à titre onéreux, moyennant une somme d’argent, ou pour une chose mobilière appréciable, ou pour un immeuble.” (Article 1968 of the Civil Code) That sentence is the legal foundation of every viager transaction: an annuity can be created in exchange for a building, and the property transfers immediately while the payments run for life.
In practice the price has two components. The bouquet (lump sum) is a capital amount paid on the day of the deed, typically 20 to 40 percent of the property’s vacant market value. The rente viagère (lifetime annuity) is then paid periodically, usually monthly, until the seller dies. The two are calibrated together using actuarial tables based on the seller’s age and statistical life expectancy: the older the seller, the higher the bouquet and the annuity can be, because the expected payment period is shorter. This calibration is the heart of the transaction, and as explained in Part II, getting it wrong exposes the sale to rescission claims by the seller or their heirs.
The second fundamental distinction is between viager occupé (occupied life-estate sale) and viager libre (unoccupied life-estate sale). In a viager libre, the buyer takes possession immediately and can move in or rent the property out, while still paying the annuity. In a viager occupé, which represents the large majority of transactions, the seller keeps a droit d’usage et d’habitation (right of use and habitation) or a full usufruit (usufruct) and continues living in the property until death. The buyer becomes the bare owner, pays the annuity, and waits. The discount on the headline price in a viager occupé reflects precisely this: the buyer acquires a property they cannot use, sometimes for fifteen or twenty years.
Foreign buyers must understand what occupancy costs them beyond patience. Routine maintenance and the charges of daily occupation generally sit with the occupant, while major structural repairs fall to the bare owner under the Civil Code’s division between usufructuary and bare owner. In apartment buildings, the division of charges de copropriété (co-ownership charges) between the occupant-seller and the buyer follows the same logic, and the deed should allocate each category expressly. The Cour de cassation has enforced these allocations strictly: in a 2019 case, a viager buyer’s repeated failure to pay the co-ownership charges imposed on him, combined with late and unindexed annuity payments, justified the judicial resolution of the sale at the seller’s request (Cass. 1st civ., 17 April 2019, No. 18-13.530). The lesson is that a viager buyer takes on a bundle of recurring obligations, not just the monthly annuity, and neglecting the secondary ones can cost the property itself.
Financing deserves a warning. French banks rarely grant mortgages to fund a viager purchase, and almost never to non-residents: the collateral is occupied, its value is uncertain, and the annuity already burdens the buyer’s budget. Most foreign buyers therefore pay the bouquet from savings and service the annuity from income. Before committing, convert the annuity into your home currency under a stressed exchange rate and ask whether you could sustain payments for five years beyond the seller’s statistical life expectancy. If the answer is no, the viager is not the bargain it appears to be.
Tax should be mentioned briefly, without replacing tailored advice. The annuity received by the seller is partly taxable as income under a fraction that decreases with the seller’s age at the contract date, while the buyer acquires the property at its full transfer value for future capital gains purposes. Non-resident buyers remain subject to French capital gains tax on resale and to the annual real-estate wealth tax above the threshold, and rental income is impossible in a viager occupé by definition. These points should be confirmed with a tax adviser before signing, because they change the effective return of the investment.
B. The deed and the clauses that decide everything
Every viager sale is executed before a French notaire (public officer who authenticates the deed) in an acte authentique (notarial deed). The notary verifies title, urban-planning documents, diagnostics and co-ownership paperwork, exactly as in an ordinary sale. But the viager deed carries additional clauses on which the entire balance of the transaction rests, and a foreign buyer should read them with particular attention, ideally with an independent lawyer alongside the notary.
The indexation clause comes first. The annuity is normally indexed, often to the INSEE consumer-price index, so that inflation does not erode the seller’s income. The deed states the reference index, the base value and the revision date. Buyers sometimes treat indexation as a detail; courts treat it as a payment obligation like any other. In the 2019 case mentioned above, the seller established that the buyer had applied indexation incorrectly and had skipped the July 2012 indexation altogether despite receiving the figures from the seller and her lawyer, and these failures counted toward the resolution of the sale (Cass. 1st civ., 17 April 2019, No. 18-13.530). Diarise every indexation date and keep proof of each revised payment.
The second decisive clause is the clause résolutoire (termination clause for non-payment). By default, the Civil Code protects a buyer who falls behind: “Le seul défaut de paiement des arrérages de la rente n’autorise point celui en faveur de qui elle est constituée à demander le remboursement du capital, ou à rentrer dans le fonds par lui aliéné” (Article 1978 of the Civil Code) In plain English, mere non-payment of the annuity arrears does not by itself allow the seller to take the property back; the seller’s default remedy is to seize and sell the buyer’s assets and secure the annuity service from the proceeds.
But that default rule is not mandatory law, and nearly every viager deed contracts out of it. The Cour de cassation has confirmed that Article 1978 states rules which are not a matter of public policy and from which the parties may freely depart: “la clause résolutoire dérogatoire aux dispositions de l’article 1978 du code civil qui ne sont pas d’ordre public” is valid, meaning the parties can agree that one missed annuity payment triggers resolution of the sale (Cass. 1st civ., 11 July 2018, No. 17-20.208). The standard clause, reproduced in the 2019 decision, provides that « à défaut de paiement à son échéance exacte d’un seul terme de la rente viagère présentement constituée, la présente vente sera, de plein droit et sans qu’il soit besoin d’une demande en justice, purement et simplement résolue » one month after a formal demand to pay that remains unpaid (Cass. 1st civ., 17 April 2019, No. 18-13.530). In other words, a single annuity instalment missed on its exact due date can, after a one-month demand letter, automatically unwind the sale if the seller so chooses. Foreign buyers who travel, change banks or suffer a currency-transfer delay must set up automatic, date-certain payments and designate a person in France authorised to intervene at the first reminder.
The third protection, on the seller’s side, is the privilège de vendeur (vendor’s lien) and the action résolutoire (right to seek resolution), which the notary registers against the property. These securities mean the property itself answers for the annuity: if the buyer defaults, the seller can force its sale. A foreign buyer should understand that this lien survives any resale and will appear in any future buyer’s title search, which complicates exit strategies such as reselling the bare ownership.
Finally, the deed must describe the occupancy right precisely, allocate all charges and works, and record the property’s condition in detail. Because the seller stays in place for years, disputes over who pays for a leaking roof, a broken boiler or rising co-ownership charges are the daily reality of viager ownership. A contradictory inspection report (état des lieux) attached to the deed, a clear table of charge allocation, and an explicit timetable for major works decided by the co-ownership association will prevent most of these conflicts. General guidance on working with French property counsel in Paris is available from our real estate law team in Paris, which assists foreign buyers with deed review before signature.
II. Where foreign buyers lose money: disputes and how courts decide
A. Missing an annuity payment can unwind the sale
The gravest risk for a viager buyer is also the simplest: stop paying, even briefly, and the seller can take the property back. The two Cour de cassation decisions of 2018 and 2019, both rejections of buyers’ appeals, show how rigorously courts apply the contractual termination machinery once the deed contains a derogating clause.
In the 2018 case, viager buyers challenged the enforcement of the termination clause contained in their 2007 deed, arguing from Article 1978. The court of appeal upheld the clause and pronounced resolution of the sale, and the Cour de cassation rejected the buyers’ appeal, confirming that the clause validly derogated from Article 1978 because those provisions are not a matter of public policy (Cass. 1st civ., 11 July 2018, No. 17-20.208). The buyers therefore lost both the property and, in economic terms, the bouquet and annuities already paid, since resolution restores the parties but the seller keeps compensation for the buyer’s years of bare ownership in practice through damages and occupation accounting.
The 2019 case is even more instructive because the buyer’s behaviour resembles what busy foreign owners often do: pay late, pay approximately, and ignore reminders. From late 2009 the seller experienced payment difficulties; she wrote in November 2009 about the revision of the annuity and a missing monthly payment, then served a formal demand invoking the termination clause in April 2010 for over 13,500 euros of arrears. The buyer made irregular transfers without fully clearing the debt, paid October and November together on 22 November 2011 so that two months remained due when proceedings started, applied indexation incorrectly, skipped the July 2012 indexation, and repeatedly failed to pay his share of co-ownership charges. The courts held that this recurring pattern, maintained despite warnings and the formal demand, justified judicial resolution of the sale at the buyer’s fault (Cass. 1st civ., 17 April 2019, No. 18-13.530).
Several practical rules follow. First, never let arrears accumulate while negotiating: partial or late payments after a commandement de payer (formal demand to pay) do not neutralise the termination clause. Second, treat indexation and co-ownership charges as part of the payment obligation, not as accessories. Third, if a demand letter arrives, instruct counsel within days, because the one-month period runs fast and the seller’s option, once exercised, is difficult to reverse. Fourth, organise payments before leaving France: a standing order from a French account, calendar alerts for indexation dates, and a contact person with authority to act. Courts show no leniency for administrative disorganisation, whether the buyer lives in Paris or abroad.
Buyers sometimes ask whether they can sell the property on to escape the burden. Legally the bare ownership can be resold, but the new buyer takes it encumbered by the annuity, the vendor’s lien and the occupancy right, which destroys most of the resale value. Renting out is impossible in a viager occupé. In economic terms, then, a viager purchase is largely irreversible: the exit is the seller’s death, and everything in between must be funded without fail.
B. Heirs can attack the price: lesion and absence of risk
The mirror risk comes from the seller’s side. When the seller dies earlier than expected, their heirs often examine the figures and sue to recover the property, using two weapons: rescision pour lésion (rescission for undervalue) and nullity for absence of aléa (aleatory risk).
Rescission for undervalue is governed by Article 1674: “Si le vendeur a été lésé de plus de sept douzièmes dans le prix d’un immeuble, il a le droit de demander la rescision de la vente, quand même il aurait expressément renoncé dans le contrat à la faculté de demander cette rescision, et qu’il aurait déclaré donner la plus-value.” (Article 1674 of the Civil Code) In English: if the seller was underpaid by more than seven-twelfths of the property’s value, they can demand rescission even if the deed says otherwise. Applied to viager sales, the court compares the property’s market value with the bouquet plus the capitalised value of the annuity actually agreed, and the seven-twelfths threshold means the price must have been less than five-twelfths of fair value, a demanding but reachable test when a young seller receives a small bouquet and a modest annuity.
The Cour de cassation polices this calculation in the buyer’s favour on one crucial point: the value of the seller’s retained occupation must be deducted before comparing. In its 10 October 2012 decision, the Court quashed an appeal ruling that had found lesion by adding the bouquet to the capitalised annuity and comparing the total with the occupied property’s market value, holding that « sans déduire du prix de vente la valeur du droit d’usage et d’habitation, la cour d’appel a violé le texte susvisé », that is, the court violated the governing provision by failing to deduct the value of the right of use and habitation from the sale price (Cass. 3rd civ., 10 October 2012, No. 11-11.069). For buyers, the consequence is practical: ensure the deed and the valuation file state the occupation right’s value explicitly, supported by a serious actuarial assessment, because that deduction is your principal shield against a future lesion claim.
The second weapon is more radical: nullity for absence of aléa. A viager is an aleatory contract, meaning each party’s ultimate advantage depends on an uncertain event, the seller’s date of death. If there was in reality no uncertainty, for example because the seller was already dying and the buyer knew it, courts may annul the sale for lack of a real and serious price. The Code addresses the extreme cases directly: a contract created on the life of a person already dead at the contract date produces no effect (“Tout contrat de rente viagère, créé sur la tête d’une personne qui était morte au jour du contrat, ne produit aucun effet.” (Article 1974 of the Civil Code)), and the same applies where the person dies within twenty days from an illness they already had at the contract date (“Il en est de même du contrat par lequel la rente a été créée sur la tête d’une personne atteinte de la maladie dont elle est décédée dans les vingt jours de la date du contrat.” (Article 1975 of the Civil Code)).
Critically, the twenty-day rule is a floor, not a ceiling. In a leading 1977 decision, the Cour de cassation upheld the annulment, finding that « LA VENTE ETAIT NULLE POUR DEFAUT DE PRIX REEL ET SERIEUX, EN RAISON DE L’ABSENCE D’ALEA », that is, the sale was void for lack of a real and serious price because there was no aleatory risk, and confirming that Article 1975 does not bar such general contract-law nullity even when death occurs more than twenty days after the deed (Cass. 1st civ., 2 March 1977, No. 75-14.556). In that case the seller, suffering from lung cancer since 1968, sold in January 1970 and died in April; the buyer, a close acquaintance who saw him daily and knew the fulminating progress of the disease, could not credibly claim any uncertainty about the outcome. The sale was annulled for absence of aléa.
Foreign buyers cannot investigate a seller’s health, and must never try: medical privacy is strictly protected and any pressure would be unlawful. The protection lies elsewhere. Insist on a realistic valuation using published mortality tables rather than an optimistic scenario; be wary of transactions where a relatively young seller accepts an unusually low bouquet and annuity; keep the negotiation correspondence showing the figures were set at arm’s length; and have the notary’s file document the actuarial basis. If the economics only work on the assumption of an early death, walk away: that is exactly the configuration heirs attack, and courts have the tools to unwind it. Further background on French property transactions for international clients is available through our Paris real estate practice, which reviews viager valuations and deeds before commitment.
Conclusion
A viager purchase can be a sound investment for a foreign buyer with stable euro income, patience and rigorous organisation: a discounted entry price, no competition from mortgage-backed bidders, and a legally supervised deed. But the structure punishes approximation. The annuity, its indexation and the co-ownership charges must be paid on time, every time, because a derogating termination clause, valid under Article 1978 as interpreted by the Cour de cassation, allows the seller to recover the property after a single missed instalment followed by an unheeded formal demand. Symmetrically, the price must be set honestly against mortality tables with the occupation right properly valued, because heirs can seek rescission for undervalue beyond seven-twelfths or nullity for absence of risk, even years later and even outside the twenty-day window. Do the actuarial homework, automate every payment, allocate every charge in the deed, and take advice before the signature, not after the summons.