Actualité - What are the pitfalls of life annuity sales to avoid for both sellers

Article updated on 20/10/2026

Have you considered a viager (life annuity sale) for your property purchase or sale? This type of transaction offers many advantages for both buyers and sellers, provided that each step is properly secured. It is a genuine "win-win" transaction. In this article, discover the main viager pitfalls to avoid. To carry out your viager purchase or sale project with complete peace of mind, call on professionals: the Capifrance advisors who are viager experts will support you from A to Z.

In summary

A viager involves the buyer (the "débirentier") paying a bouquet (initial lump sum) when the authentic deed is signed, then a monthly annuity set in the contract, depending on whether the property is occupied or vacant.
On the seller's side, the main pitfalls are a poor valuation of the property, of the bouquet (between 10% and 40% of the property's value) and of the annuity, as well as selling too young, since only 30% of the income is taxable at age 70 or over, compared with 70% before age 50.
It is also necessary to check the buyer's solvency and request guarantees, provide for an annual indexation of the annuity, clearly allocate charges and works, and include essential clauses such as the reversion clause and the termination clause (clause résolutoire).
To secure the sale, the article recommends calling on a Capifrance advisor who specialises in viager and on a notary, drafting a detailed contract and carrying out a tax simulation.

Update of Thuesday 20 October:
According to the Baromètre Univers Viager, around 6,000 viager sales take place each year, benefiting nearly 90,000 seniors. Occupied viager accounts for 83% of transactions, with an average bouquet of €58,431 and an annuity of €554 per month: benchmarks for assessing an offer. Source: Actu-Juridique; MonImmeuble.

What is a viager? A brief overview

The fundamentals of viager

The viager is an attractive and advantageous real estate solution, reconciling the seller's financial needs with investment opportunities for the buyer, while relying on a principle of uncertainty (aléa): the life expectancy of the annuitant (crédirentier).

In this type of sale, the buyer, or débirentier, pays an initial capital sum called the "bouquet" when the authentic deed is signed, followed by a monthly life annuity, set when the contract is signed. There are two main types of viager:

Occupied viager: the crédirentier keeps a right of use and habitation allowing them to remain in the property for the rest of their life.
Vacant viager (viager libre): the buyer can enjoy the property immediately, by living in it or by renting it out.

Every viager sale is unique and requires particular attention. Indeed, the valuation of the bouquet and of the annuity, which is sometimes highly technical, requires real mastery of viager. The value of the property, the seller's age and life expectancy tables are taken into account.

Why opt for a viager?

For the seller, the viager provides regular income. It is a genuine alternative solution to financial problems at retirement: it allows the seller to remain at home while receiving a capital sum when the authentic deed is signed and monthly income throughout their life.

For the buyer, it represents an attractive long-term real estate investment, often on favourable terms compared with a conventional purchase. However, the viager aléa, which is the foundation of the contract, is a factor of uncertainty, making professional support essential to secure the transaction.

Viager pitfalls for the seller to avoid

Poor valuation of the property, the bouquet and the annuity

Valuing the property is a crucial step in a viager sale. An incorrect valuation can have significant financial consequences. If the property's value is underestimated, the amount of the bouquet and of the life annuity will be insufficient, affecting the seller's income. Conversely, overvaluation risks discouraging potential buyers.

The bouquet can vary between 10% and 40% of the property's value. If it is too high, it can reduce future annuity payments.
The life annuity, paid for life, must be calculated with the greatest care. If it is too low, it may fail to meet the seller's expectations if they need regular income.

A professional property valuation, carried out by a Capifrance real estate advisor who is a viager expert, is essential to value a property accurately (taking into account many factors such as location, surface area, condition of the property, local market prices, etc.).

Selling a viager too young

The seller's age directly affects the taxation of life annuity income. The tax authorities apply a sliding deduction depending on the age at the time of the first annuity payment. For example, only 30% of the income is taxable for an annuitant aged 70 or over, compared with 70% for a seller under 50. Delaying the sale until a later age therefore makes it possible to benefit from a more advantageous tax deduction.

Failing to verify the buyer's solvency

A financially unstable buyer exposes the seller to the risk of unpaid annuities. To avoid these problems, it is essential to verify the solvency of the debtor of the annuity (the buyer) and to request guarantees, such as death cover insurance or a mortgage guarantee, to secure the payments.

Neglecting the indexation of the life annuity

Inflation is a factor that is often underestimated in a viager sale. Without an indexation clause, the life annuity, which is set at the time of the transaction, loses value over time, reducing the seller's purchasing power. To avoid this pitfall, it is essential to include in the contract an annual indexation of the annuity based on the change in an economic indicator, such as the harmonised index of consumer prices (IPCH) published by INSEE. This mechanism ensures that the annuitant's income keeps pace with the rising cost of living, preserving their long-term financial balance.

Poor allocation of expenses and works between the seller and the buyer

The allocation of expenses or of the financing of works between the seller and the buyer must be clearly defined in the contract. This allocation varies depending on the type of viager:

In an occupied viager with a right of use, the annuitant bears the day-to-day expenses (maintenance, minor repairs), while major works are the responsibility of the debtor of the annuity.
In a vacant viager (viager libre), the buyer generally bears all of the expenses, including the property tax (taxe foncière) and the co-ownership charges.

A lack of clarity on these points can give rise to tension or disputes. Precise clauses must set out the responsibilities of each party, thereby avoiding any ambiguity.

Poorly drafting or omitting contractual clauses

An incomplete contract exposes both parties to legal and financial risks. Certain contractual clauses are essential, such as the reversion clause, which allows the surviving spouse to receive the annuity, or the termination clause (clause résolutoire), which applies in the event of non-payment. The absence of these provisions can lead to disputes and even to the nullity of the contract. Rigorous drafting with a notary is essential to secure the agreement.

Tips for securing a viager sale

Call on qualified professionals

A viager sale involves strategic decisions that require the involvement of qualified professionals.

A Capifrance real estate agent specialising in viager will play an essential role in accurately estimating the value of the property and in determining the amount of the bouquet (initial lump-sum payment) and of the life annuity, using several calculation methods based on different life expectancy tables.
The notary, for their part, guarantees the legality and legal security of the transaction by drafting an authentic deed (acte authentique) that meets the needs of both parties, including the terms specific to viager.

Their combined expertise will enable you to secure your transaction while maximising its benefits.

Draft a detailed and secure contract

A well-drafted contract is the cornerstone of a successful viager sale. It must include the essential clauses. Financial guarantees may be required to limit the risks linked to the buyer's solvency. Every detail must be discussed and formalised to avoid any future dispute.

Simulate the tax impacts

It is advisable to carry out a tax simulation in order to accurately assess the costs associated with the transaction. This analysis makes it possible to anticipate the implications of life annuity income, the applicable tax deductions and the associated taxes.

Your Capifrance viager advisor supports you in achieving a successful real estate project!

At Capifrance, our expert viager advisors guide you at every stage of your project. They will put their expertise at your service to help you secure your choices and optimise the terms of your sale or real estate investment. Don't wait any longer to benefit from personalised support: contact your local Capifrance real estate advisor to turn your project into a success.

To make your project a reality, discover our properties for sale.

To go further, watch our video "Parlons peu, Parlons biens" #8: Your best ally for building wealth.

Also read on the blog

Author

Frédéric Rémy – Director of Sales Performance

A real estate professional with several years of experience within the Capifrance network, I would like to share essential advice with you to help you successfully complete your property project with our advisors.