Unfair Terms Between Businesses: Significant Imbalance Under French Law

Unfair terms between businesses: significant imbalance under French law

Common-law lawyers expect unfair-terms control to be limited to consumer contracts. In France it is not. Since the 2016 reform, any clause of a contrat d'adhésion (adhesion contract, concluded on non-negotiable standard terms) that creates a significant imbalance between the parties' rights and obligations is deemed unwritten (C. civ. Art. 1171), and the Commercial Code separately sanctions the imbalance a business imposes on its commercial partner. A liability cap, a unilateral variation right or an asymmetric termination clause in your French standard terms can simply be removed from the contract, with the rest of the deal remaining in force.

This article sets out the three regimes and the boundary rules between them, the adhesion-contract condition, what the judge may and may not review, the criteria the courts use to find a significant imbalance, the international reach of the French rules, and the exact operation of the unwritten-clause sanction, together with Article 1170 on clauses that empty the essential obligation of its substance.

Which imbalance regime covers your contract?

The three French imbalance regimes and their fields of application

French law polices significant imbalance through three parallel texts, and the first task in any dispute is to pick the right one, because they are exclusive of each other. The Cour de cassation, relying on the parliamentary work of the 2018 ratifying law, has confirmed that Article 1171 of the Civil Code is the general law that sanctions abusive clauses only in contracts falling outside the special provisions of the Commercial Code and the Consumer Code (Cass. com., 26 janv. 2022, n° 20-16.782).

The allocation matters strategically. A supplier subjected to imbalanced obligations inside a distribution relationship pleads the Commercial Code; a software customer on non-negotiable standard terms pleads Article 1171; a company that qualifies as a non-professional because the contract has no direct relationship with its activity pleads the Consumer Code. Pleading the wrong text loses otherwise well-founded cases.

Consumer, non-professional, professional: who falls under which regime

Because the three regimes are exclusive of each other, the qualification of the parties decides the applicable text, and the Consumer Code provides the only statutory definitions. A "professional" is any person, natural or legal, public or private, acting for purposes within its commercial, industrial, craft, liberal or agricultural activity, including where it acts in the name or on behalf of another professional; an intermediary acting for a professional is itself a professional (CJUE, 24 févr. 2022, aff. C-536/20). A "consumer" is a natural person acting for purposes outside any such activity, and a "non-professional" is any legal person not acting for professional purposes, the quality being assessed at the date the contract is concluded (CJUE, 20 mars 2025, aff. C-365/23). The categorisation has been held compatible with the principles of equality before the law and before the courts (Cass. 3e civ., 17 févr. 2022, n° 21-19.829).

The criterion is the purpose of the contract, not the general status of the party:

• only contracts concluded outside and independently of any professional activity or purpose, even a future one, attract the consumer-protection regime (CJUE, 14 févr. 2019, aff. C-630/17);
• the operator of an equestrian centre contracting for the construction of a riding arena is a professional; it is not a consumer merely because it is not a professional of construction (Cass. 3e civ., 3 avr. 2025, n° 23-16.776);
• conversely, a professional employing no more than five staff, contracting off-premises for a subject outside its main activity, benefits from the Consumer Code's protections (Cass. 1e civ., 27 nov. 2019, n° 18-22.525);
• a borrower financing the current account of its own company and the constitution of a property company is not a consumer (Cass. com., 15 juin 2022, n° 21-10.712);
• a co-owners' syndicate has been qualified as a non-professional even where represented by a professional managing agent (Cass. 1e civ., 25 nov. 2015, n° 14-20.760), as has an estate agent selling a house as co-vendor in the management of its personal assets (Cass. 3e civ., 10 oct. 1978, n° 77-11.263).

For a foreign business the practical consequence is direct: the same standard terms may face the Consumer Code with one counterparty, the Commercial Code with a distributor, and Article 1171 with everyone else contracting on non-negotiable terms.

Article 1171 applies only to adhesion contracts: proving the absence of negotiation

Article 1171 applies only to a contrat d'adhésion (adhesion contract): a contract comprising a set of non-negotiable clauses determined in advance by one party (C. civ. Art. 1110). The case law reads "non-negotiable" as not in fact negotiated, and the party claiming the qualification bears the burden of establishing that a set of clauses was not effectively negotiated. The most telling evidence is procedural: where a party's proposed reservations and amendments were simply ignored, the clauses were not negotiated (Cass. com., 3 mars 2015, n° 14-10.907), and the contracts concluded by an online marketplace have been held to comprise necessarily non-negotiable clauses. Conversely, a real negotiation, evidenced by exchanged mark-ups, accepted amendments or a bespoke regime chosen between competing sets of conditions, keeps the contract in the gré à gré (freely negotiated) category, and even a genuinely imbalanced clause cannot be struck under Article 1171 if it was negotiable. Outside the adhesion category the argument has no legal basis at all: a significant-imbalance objection raised against a clause of an off-plan sale contract, which suspended the delivery period in circumstances assessed by a qualified third-party professional, was dismissed for that reason (Cass. 3e civ., 30 avr. 2025, n° 23-21.499).

Two evidentiary points refine the analysis. Particular conditions added to general ones establish negotiation only where they actually remove the imbalance the standard set would otherwise carry; and the structure of a market, however unequal, is only an indicium: the mere fact that the sector runs on unbalanced bargaining power does not by itself prove the absence of effective negotiation, which must be established by further evidence (Cass. com., 20 nov. 2019, n° 18-12.823). Between parties of equal negotiating strength, a presumption of real negotiation has judicial support, the courts having noted that each contractor able to measure the scope of its commitments clause by clause was bound by what it accepted.

The other consequences of the adhesion qualification

The adhesion qualification is not a prohibition on protecting yourself; it is a discipline. A limitation or exoneration clause may perfectly well figure in an adhesion contract, no provision prohibiting it in general (Cass. 1e civ., 19 janv. 1982, n° 80-15.745), unless it is the source of a significant imbalance. The qualification does carry standing consequences beyond Article 1171: ambiguous terms are interpreted against the party who proposed the contract (C. civ. Art. 1190); the party renewing an adhesion contract must draw its counterparty's attention to any modification of the general conditions that substantially amputates the counterparty's rights, as with a new clause removing the agent's right to indemnification of losses (Cass. com., 5 févr. 2002); and the adhesion character excuses nothing procedurally, the need to put a defaulting counterparty on formal notice not being waived because the contract is one of adhesion (Cass. com., 22 mars 1977, n° 75-14.793). For businesses that must operate on standard terms, the working method is to keep the set enforceable, to flag and justify the sensitive clauses, and to accept that what a French judge will weigh is the equilibrium of the contract as a whole, clause against counterpart, not the drafting quality of any single provision.

What the judge may not review: main subject matter, price, supervening events

Article 1171 sets its own limits, and four matters are outside review. First, the assessment of significant imbalance may not bear on the main subject matter of the contract (C. civ. Art. 1171), understood as the essential obligation that characterises the deal: the consumer case law on the same exclusion holds that it covers the clause fixing the essential element that characterises the contractual whole, assessed through its nature, its general economy and its stipulations (CJUE, 23 avr. 2015, aff. C-96/14); clauses of that kind escape review, as with the guarantee that constituted the very object of an insurance product (Cass. 1e civ., 13 déc. 2012, n° 11-27.631) or the validity periods that participate in defining prepaid telephone cards (Cass. 1e civ., 3 juin 2015, n° 14-13.193).

Second, the adequacy of the price to the prestation (the performance owed) is excluded (CA Lyon, 27 févr. 2020, n° 18/08026): reviewing price against value would generalise lésion (inadequacy of price as a ground of relief), which the Civil Code rejects. Third, the imbalance must result from the clauses as concluded or later amended, not from supervening circumstances, which are dealt with by the hardship rules, not by Article 1171. Fourth, a stipulation that creates no obligation between the parties cannot found the claim: a clause obliging each party to "intervene in any proceedings brought by a third party" was held a mere declaration, carrying no sanction, and therefore outside the imbalance analysis (T. com. Paris, 20 mai 2014, n° 2013077093).

How French courts find a significant imbalance

For the general-law text the courts borrow the analytical grid built under the Commercial Code. No precedent yet defines the significant imbalance of Article 1171 itself, so the courts draw on the assessments made under the special texts, in particular the Commercial Code, which concerns professionals. The judge conducts a global and concrete analysis of the contract and may weigh the context in which it was concluded or proposed, without being required to identify the precise effects the imbalance produced (Cass. com., 3 mars 2015, n° 13-27.525 et 14-10.907). More recent decisions refine the method: the imbalance results not from the wording of the clauses but from their concrete effects, it must be effective and not merely potential, it is not established where other clauses rebalance the deal, and it can be found in the absence of reciprocity, the disproportion between the parties' obligations, the potestative character of an obligation (an obligation left to one party's sole discretion), the absence of any interest of the clause for the adhering party, or the presence of unjustified obligations imposed on it (T. com. Paris, 2 sept. 2019, n° 2017050625).

Foreign groups should also note the international reach of these rules, which internet commerce brings into play even for adhesion contracts. The significant-imbalance prohibition of the Commercial Code has been characterised as an overriding mandatory rule of the French economic order (loi de police), whose violation makes the contract unlawful for interference with the national market and the free competition that must prevail there (T. com. Paris, 7 mai 2015, n° 2015000040; CA Paris, 21 juin 2017, n° 15/18784), applicable whatever the contract's governing law where the practice affects the French market, and, by the same logic, inapplicable where the contract produces no effects on the French market (CA Paris, 29 oct. 2024, n° 23/02368). Choosing New York or English law for your French distribution network does not, by itself, switch these rules off.

Is your clause at risk of being struck?

The sanction: the clause is deemed unwritten, the contract survives

The imbalancing clause is deemed unwritten: it disappears and the contract continues without it. What the judge cannot do is repair. Under the parallel consumer regime, whose solutions transpose to Article 1171, the court may only make the clause vanish; it may not complete the contract by revising the clause's content (CJUE, 14 juin 2012, aff. C-618/10), nor delete the unlawful part of a clause where that deletion would amount to revising the contract's content by affecting its substance (CJUE, 26 mars 2019, aff. C-70/17 et C-179/17). It may, however, maintain a clause after expurgating the elements that made it abusive, where that leaves the clause's substance intact (Cass. 1e civ., 2 juin 2021, n° 19-22.455). For the drafter, the practical rule is severability by design: one obligation per clause, so that the removal of an abusive element does not carry away provisions that could have stood on their own. The mechanism must also be kept distinct from partial nullity: where a cause of nullity affects only one or more clauses, the whole contract is annulled only if those clauses were a determining element of the parties' commitment (C. civ. Art. 1184; Cass. 1e civ., 25 janv. 2023, n° 19-25.478).

Article 1170: clauses that empty the essential obligation of its substance

Alongside Article 1171 stands Article 1170: any clause that deprives the debtor's essential obligation of its substance is deemed unwritten, in every contract, adhesion or not. The line of cases behind the text is the litigation over derisory limitation clauses: an indemnity so trivial that the obligation itself is effectively suppressed neutralises the clause (Cass. com., 22 oct. 1996; Cass. com., 30 mai 2006; Cass. com., 13 févr. 2007, n° 05-17.407), a liability exclusion cannot relieve a seller of its delivery obligation itself (Cass. com., 9 juin 2009, n° 08-10.350), and a landlord cannot in any circumstances release itself from its own delivery obligation. Generalising these solutions, the substance of the essential obligation is lost where the clause neutralises its binding character by excusing the debtor from performing it. The sanction is the same as under Article 1171: the offending clause is deemed unwritten (C. civ. Art. 1170; Cass. ch. mixte, 22 avr. 2005, n° 03-14.112), and arbitral tribunals apply the same solution.

The limits are policed with equal care. The essential obligation keeps its substance where it retains the legal effect expected of it: where the indemnification under the limitation clause is not derisory (Cass. com., 29 juin 2010, n° 09-11.841), where the disputed clause does not remove the promised guarantee, its loss being due to the beneficiary's own breach (CA Versailles, 10 mars 2015, n° 13/05649), or where a storage contract allocating the risks of the stored products to the depositor still organised the custody of the goods between the parties, granted the depositor a right of control and divided the risks between them within a balanced habitual relationship (Cass. com., 26 avr. 2017, n° 15-23.245). And a judge cannot strike a clause, such as one merely excluding consequential loss, without explaining how it removes all force from an essential obligation (Cass. com., 6 juin 2018, n° 17-15.155). Together the two articles frame every aggressive clause in a French contract: Article 1170 asks whether the clause suppresses the deal's essential obligation, Article 1171 whether, in an adhesion contract, it creates a significant imbalance.

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.