The Precontractual Duty of Disclosure in France: What Article 1112-1 Really Requires

The precontractual duty of disclosure in France: what Article 1112-1 really requires

Since the 2016 reform, Article 1112-1 of the Civil Code states the duty in one sentence: the party who knows information whose importance is determining for the other's consent must inform the other of it, where the other legitimately ignores that information or relies on its counterpart. The duty is public policy, incapable of limitation or exclusion, and its breach exposes the silent party to damages and, where the silence vitiated consent, to the annulment of the contract.

Everything turns on the conditions, and each has its case law: what counts as an "information" as opposed to a warning or advice, who owes the duty and who can claim it, which information is determining and which, the value of the deal above all, is excluded, how the duty and its performance are proved, and what exactly the sanctions are. This article takes the conditions in that order.

Do you owe disclosure, or are you owed it?

A duty to inform, distinct from the duties to warn and to advise

Under Article 1112-1 the negotiator owes only an "information": a clear and unequivocal presentation of what is being negotiated and an answer to the questions asked, adapted to the profile of the recipient, so that for a counterpart able to understand, handing over written documentation can perform the duty. The duty does not go as far as substituting for the other party's own choice, and it must not be confused with two heavier duties:

• The duty to warn (devoir de mise en garde): drawing attention to a risk, notably the risk of excessive indebtedness, which weighs on the banker, and which the courts have extended to the estate agent who must alert the seller to the insolvency risk of the buyer he introduced (Cass. 1e civ., 11 déc. 2019, n° 18-24.381). Its breach is sanctioned only by damages in tort, and the victim bound to a payment obligation has a certain prejudice only once the risk materialises and payment is pursued against her (Cass. 3e civ., 1 févr. 2024, n° 22-13.446), and in suretyship its breach opens damages without extinguishing the guaranteed debt (Cass. 1e civ., 12 mars 2025, n° 23-19.708). The bank also owes targeted enlightenment beyond indebtedness: to the public guarantor on the effect of its guarantee (Cass. com., 3 déc. 2013, n° 12-23.976), and to the borrower on the reach of the group insurance subscribed to secure the loan (Cass. 1e civ., 30 sept. 2015, n° 14-18.854).
• The duty to advise (devoir de conseil): recommending a determined solution, the duty of the legal professional above all. The notaire (civil-law notary) must inform and enlighten the parties on the reach, effects and risks of the act, its tax incidences included, and where needed advise against it (Cass. com., 17 févr. 2015, n° 13-27.545); the client's personal competence does not relieve him (Cass. 1e civ., 10 oct. 2018, n° 16-16.548), though he owes no advice on a party's solvency or the economic opportunity of the deal, as opposed to its feasibility. The lawyer entrusted with a purely legal mission owes no advice on the financial aspects of the acquisition (Cass. 1e civ., 14 janv. 2016, n° 15-11.156), but the lawyer who flags a pending dispute in a share sale must inform the buyer of its foreseeable outcome (Cass. 1e civ., 7 oct. 2020, n° 19-17.617). In exercising the duty, the notary must take into account the motives that caused the parties to consent (Cass. 1e civ., 29 mars 2017, n° 15-50.102), and must clearly inform a buyer of the incidences of a refused certificate of conformity and of the risk being assumed (Cass. 1e civ., 17 juin 2015, n° 14-19.692). Where the duty to advise is stipulated in the contract, it is owed in the terms there determined, and the debtor cannot escape it by pleading a collaborative piloting of the project with its client (CA Paris, 3 juill. 2015, n° 13/06963).

The duty of Article 1112-1 is public policy: the parties can neither limit it nor exclude it. It yields only to the special disclosure regimes incompatible with it: consumer contracts, distribution contracts with exclusivity undertakings, arbitration, and the seller's duty under Article 1602 of the Civil Code to explain clearly what he undertakes.

Who owes the duty, and who can claim it

The debtor is a party to the negotiation who knows the information. Whoever did not participate in the negotiation, or did not conclude the contract, owes nothing under Article 1112-1: the group insurer owes no enlightenment to the borrower, that duty resting on the subscribing bank alone (Cass. com., 1 déc. 2015, n° 14-22.134); the bank owes no warning to the guarantor's spouse who merely authorises the commitment of community property (Cass. com., 9 févr. 2016, n° 14-20.304); the manufacturer owes no precontractual information to a sub-purchaser with whom it has no direct contractual link (Cass. 1e civ., 17 janv. 2018, n° 16-27.016). The text reaches the party who "knows"; the settled presumption that a professional knows what concerns its own speciality should be treated as remaining good law, but it is not unlimited: a franchisor was not bound to communicate an unforeseeable circumstance, the irregular opening of a competing activity (Cass. com., 21 juin 2016, n° 15-10.029). The debtor of the information can never reproach the other party with not investigating to make up for the silence (Cass. 3e civ., 10 sept. 2013, n° 12-22.844), nor hide behind the intervention of another professional (Cass. 3e civ., 8 juin 2023, n° 22-12.302).

The creditor is the party who legitimately ignores or legitimately relies. The legitimately ignorant party is typically the unsophisticated party (personne non avertie), a quality appraised against the contract in question and the party's training and professional experience. There is in principle no legitimate ignorance between professionals of the same speciality, nor of the rules no one may ignore. The appraisal is functional: the concession-holder operating boat-handling installations was entitled not to know the resistance of the quays, being a professional of their operation, not of their construction (Cass. 3e civ., 17 févr. 1982); the investor specialised in equity transactions was deemed informed by the bank valuation he had received (Cass. com., 10 févr. 2015, n° 13-24.684); and the international-trade specialist who ordered transport to a destination of endemic insecurity knew the risk (CA Paris, 13 oct. 2015, n° 13/15408). The party who legitimately relies is the one with no reason to doubt its counterpart's statements, and the confidence weighs heavier where the assurance was given as an imperative, "your investment will enjoy total security", without restriction or reserve (Cass. 1e civ., 26 sept. 2019, n° 18-21.405). Legitimacy has a final edge: the party shown to have been informed, who nevertheless pursued the operation, has no reparable prejudice (Cass. 1e civ., 10 avr. 2019, n° 18-14.987).

Reliance can also be made express, and the drafting point deserves attention on both sides. A party who declares in terms that it takes note of the information supplied and relies on its counterpart for the result those data allow it to expect forces a choice on the informer: correct the interpretation, or confirm the reliance. A confirmation accepted without equivocation transforms the unilateral duty of information into an agreed promise bearing on the results of the information communicated, a genuine contract of confidence. The informer who does not intend that result must say so before the contract is signed.

What must be disclosed: determining information, never the value

The information owed is the one whose importance is determining for the other party's consent, and the Cour de cassation requires both conditions cumulatively: the information must have a direct and necessary link with the content of the contract or the quality of the parties, and it must be determining of the consent (Cass. com., 14 mai 2025, n° 23-17.948; Cass. 3e civ., 27 nov. 2025, n° 23-18.439). Information that would have served no purpose is not determining (CA Aix, 16 févr. 2023). And whoever informs must do so with a reliability at the height of the qualities he vaunts (Cass. com., 17 févr. 2015, n° 13-27.545).

The exclusion is the value. The duty does not bear on the estimation of the value of the performance (C. civ. Art. 1112-1; Cass. 1e civ., 3 mai 2000, n° 98-11.381): no negotiator owes the other its own valuation of the deal, and a bank need not reveal its margin to its client (Cass. com., 17 mars 2015, n° 13-25.142).

Information linked to the contract's content starts with everything touching the essential obligation. The seller of a building held under a gift providing for its return to the donor in defined cases had to disclose that return clause before the preliminary sale agreement (CA Douai, 4 mai 2023, n° 21/02382); the travel agency had to alert travellers to the risk of not obtaining a United States visa given the imminent departure date (Cass. 1e civ., 25 sept. 2024, n° 23-10.560); the landlord must disclose before the lease that the premises are under expropriation proceedings (Cass. 3e civ., 27 mai 1998, n° 96-18.236); and the accountant who drafts a company's constitutive documents must enlighten his client completely on the operation's effects, tax incidences included (CA Paris, 13 mai 2014, n° 13/05915). The limit is symmetrical: the IT seller who informed the buyer on the software's functions owed no information on competing solutions absent special circumstances (Cass. com., 12 nov. 1992, n° 91-12.600). The practical rule for the party fearing a reproach of under-information is to enquire about the objectives of the party interested in its services, which the courts have raised to an obligation (Cass. 1e civ., 2 juill. 2014, n° 13-10.076).

Information linked to the quality of the parties concerns the aptitude of the party promising a performance to assume what it proposes. The court-appointed liquidator selling a building by private treaty has no particular aptitude to know the thing sold and owes no such disclosure; a company might in contrast have to reveal the links binding it to a competing group where that information is determining. Before Article 1112-1 entered into force, the Cour de cassation refused to oblige a party to disclose that it was under insolvency reorganisation, no text then requiring it (Cass. com., 24 sept. 2003, n° 00-21.863); the question stands open under the new text.

Was the duty of disclosure breached?

Proving the duty and proving its performance

Article 1112-1 splits the burden: the party invoking the duty proves that it was owed, and the party accused proves that it provided the information. Proof is free on both sides, but the production of a copy does not suffice (Cass. 2e civ., 19 janv. 2023, n° 20-16.490), and the judges must positively establish the delivery of the information, not content themselves with facts from which it might be deduced (Cass. 1e civ., 29 oct. 2014, n° 13-19.729).

The drafting consequences are direct. The party owing information should have the other acknowledge, in the contract or an annexed document, that it received the identified information, in explicit terms and with the facts founding the acknowledgment; a plain recital naming each disclosed item is what withstands scrutiny, and it is prudent to record the delivery in the act itself (Cass. 1e civ., 8 janv. 2020, n° 18-23.948). One caution attaches: in a standard-form contract, such an acknowledgment clause could be found abusive.

Sanctions: damages in tort, annulment for vitiated consent

The breach, committed before the contract's conclusion, engages extra-contractual liability, even where it is invoked afterwards (Cass. 1e civ., 5 mars 2009, n° 08-11.374; Cass. com., 22 sept. 2021, n° 19-18.886). The reparable prejudice is framed with precision: the loss of the chance of not concluding the contract and thereby avoiding losses, or of contracting on more advantageous terms, never the loss of the chance of obtaining the expected gains (Cass. 1e civ., 9 déc. 2010, n° 09-69.490). The loss-of-chance discipline applies in full: the judge must identify the favourable eventuality lost (Cass. com., 21 juin 2017, n° 15-17.059); no chance is lost where the prejudice was certain, where it could never have materialised, as for the borrower who, properly informed, would not have borrowed at all (Cass. com., 30 juin 2015, n° 14-11.607), or where it cannot result from the missing information, as for the buyer who says he would not have bought and cannot then claim a lost profit (Cass. 1e civ., 2 juill. 2014, n° 13-17.894). In insurance, the damages can equal the indemnity for the cover the insured believed guaranteed (Cass. 1e civ., 10 févr. 1987, n° 85-15.329). The action prescribes not from the contract but from the day the loss of the chance became certain, when performance can no longer erase the consequences of the missing information (Cass. 1e civ., 16 janv. 2019, n° 17-21.220), or from the date the damage was revealed to the victim (CA Aix, 23 janv. 2024, n° 23/09828).

Where the silence vitiated the consent of the party who contracted in ignorance, the contract can be annulled on the rules governing defects of consent (C. civ. Art. 1112-1; Cass. com., 28 juin 2005, n° 03-16.794). Some trial courts have gone further and pronounced the termination of the contract for breach of the information duty (Cass. 1e civ., 1 oct. 2014, n° 13-23.607); the qualification sits uneasily with principle, termination sanctioning the breach of contractual obligations while the duty of Article 1112-1 is precontractual, and the annulment and damages routes remain the solid ground.

Frequently Asked Questions

This article is for general information only and reflects French law as published at the date shown above. It does not constitute legal advice. Always seek qualified advice before acting.