Sudden termination: how is the "sufficient" notice period calculated?

A supplier informs you by letter that it will stop supplying you in three months, after eleven years of continuous dealings. Or the reverse: you are a distributor and your main customer, which accounts for 40% of your business, notifies you of the end of the contract with a notice period that you regard as derisory. In both cases, the real question is not whether termination is permitted (it almost always is), but whether the period allowed is sufficient. This article describes the framework applied by the courts to calculate the length of notice in cases of sudden termination, criterion by criterion, with concrete orders of magnitude in months of notice set against years of relationship.

What Article L. 442-1 of the French Commercial Code actually penalises

Sudden termination of an established commercial relationship is provided for by Article L. 442-1, II of the French Commercial Code (formerly Article L. 442-6, I, 5°, before Ordinance No. 2019-359 of 24 April 2019). The provision does not say that one cannot terminate. It says that one cannot terminate without sufficient notice.

"Any person carrying on production, distribution or service activities who suddenly terminates, even partially, an established commercial relationship, without written notice that takes into account in particular the duration of the commercial relationship, by reference to trade practice or inter-trade agreements, incurs liability and must compensate the loss caused."

Three ideas structure this provision. First, the freedom to terminate remains intact: no one is obliged to continue a business relationship indefinitely. Second, what is penalised is the abruptness, that is, the absence of a reasonable period allowing the partner to reorganise. Third, the abruptness may be partial: suddenly halving order volumes, without terminating altogether, may be enough to engage the liability of the party responsible. The indicators that allow a partial termination to be recognised, from a drop in orders to delisting, are analysed in our article on that notion.

Calculating notice under Article L. 442-1 therefore does not depend on a fixed scale. It rests on a concrete, case-by-case assessment of what a fair period should have been given the relationship. It is precisely this absence of a scale that worries the business owner who has just received or sent a termination letter.

The conditions to be met before even discussing notice

Before calculating the length of notice for termination of a commercial relationship, Article L. 442-1, II must first apply. The courts check three cumulative elements.

• A commercial relationship: a flow of business between professionals, whatever its form (framework agreement, successive contracts, simple repeated purchase orders). It does not matter whether or not there is a single written contract.
• An established relationship: regular, continuing and stable, with sufficient intensity for the partner to have legitimately believed in its continuation. A succession of one-off tenders won at random does not constitute an established relationship; a continuous flow of orders over several years does.
• A sudden termination: the end, total or partial, without written notice or with notice that is manifestly too short in light of the length of the relationship and the other criteria.

If one of these elements is missing, the basis of Article L. 442-1 falls away, and the dispute moves to the ground of ordinary contractual liability. This is the first reflex of analysis: characterise the relationship before discussing the figure. The identification of the type of termination and the notice and compensation rules specific to each are set out in our article on the termination of a commercial contract.

The framework: the criteria for sufficient notice in a commercial relationship

The provision expressly cites the length of the relationship and trade practice, but the assessment of sufficient notice has been enriched over the course of the case law by a series of additional criteria. These criteria do not apply mechanically: they are weighed against one another. The same number of years of relationship may justify three months' notice in one case and a year in another, depending on the degree of dependence and the specificity of the products.

The length of the relationship: the starting criterion

Length is the anchor of the reasoning. The longer the relationship, the more durably the victim has organised its business around that partner, and the greater the time needed to turn around. It is the criterion that the provision cites first.

In practice, the courts often reason in terms of an order of magnitude of one month of notice per year of relationship, but this is neither a rule, nor a floor, nor a ceiling. The ratio is immediately adjusted upwards or downwards according to the other criteria. A five-year relationship with no particular features may justify notice of a few months; the same duration, but with strong economic dependence and specific products, will call for a markedly longer period.

A point to note: length is counted over the whole flow of business, including where the relationship continued after a sale of a business (cession de fonds) or a restructuring, provided that it was maintained with continuity. A change of corporate form or of company name does not wipe out the years accumulated.

The volume of business and the share of turnover

The second criterion is economic. It is not only a question of how long the relationship has lasted, but of what weight it represents for the victim. Two data points are examined: the volume of business in absolute terms and, above all, the share that this partner represents in the victim's total turnover.

A supplier that makes 5% of its business with a customer can absorb the loss relatively quickly. One that makes 60% suffers a structural shock: it must rebuild more than half of its order book, often with production capacity sized for that customer. The higher the share, the longer the sufficient notice must be, because the time needed to rebuild the lost turnover is longer.

This is where the reasoning goes beyond the arithmetic of length. A recent relationship that accounts for an overwhelming share of the business may justify longer notice than an old but marginal one.

Economic dependence

Economic dependence extends the previous criterion, but it measures something else: the victim's real ability to find a replacement solution. A high share of turnover creates dependence only if there is no accessible alternative on the market.

The courts examine in particular the existence of substitute outlets or suppliers, the state of saturation of the market, and the degree of exclusivity imposed by the partner. A distributor subject to an exclusivity clause, which has not been entitled to diversify its sources of supply, is more vulnerable than a distributor free in its purchasing. A partner that has itself organised or maintained the victim's dependence cannot then rely on the shortness of the time needed for conversion to justify short notice.

Dependence is therefore a powerful factor in lengthening notice. The more the victim is locked into the relationship, the longer the fair period to leave it must be.

The specificity of the products and the difficulty of conversion

The fourth criterion concerns the nature of the business and of the products. Converting standard production capacity is quick; converting a line dedicated to a specific product, developed to a specification for a single customer, is far less so.

Several situations lengthen the notice:

• dedicated, unamortised investments made specifically for the partner (tooling, production line, captive stock);
• own-brand products, unsaleable elsewhere as they stand;
• know-how, certifications or approvals specific to the partner's sector, difficult to redeploy in other markets;
• specifically trained staff, whose redeployment takes time.

Conversely, a standardised product that can be resold immediately to other customers reduces the time needed. The logic remains always the same: the notice must correspond to the time actually needed to reorganise, and that time depends on the rigidity of the productive apparatus.

Professional practice and inter-trade agreements

Article L. 442-1, II refers expressly to trade practice and inter-trade agreements. Some sectors have codified notice practices, sometimes with indicative durations depending on length of relationship. These practices are a point of reference, but they do not cap the assessment: notice that complies with practice may be held insufficient if the other criteria (strong dependence, specific products) required more.

Translating the criteria into months: numerical examples

A business owner who receives notice wants an order of magnitude. Here are illustrative scenarios, purely indicative, showing how the criteria combine. They are not a scale: each situation remains assessed in concreto by the court.

Take first a mechanical subcontracting SME in a relationship for eight years with an ordering party representing about 15% of its turnover, with standard products that can be resold to other customers. The relationship is long-standing but the dependence is limited and conversion is easy. Notice of the order of several months, without being exceptionally long, may be regarded as sufficient.

Now take a supplier in a relationship for twelve years, whose customer represents nearly half of its turnover, with a dedicated production line and products made to specification. Here, length, economic dependence and product specificity accumulate. The fair period is then counted no longer in isolated months but in a significantly longer period, capable of approaching the upper limit accepted in this field.

Third case: a distributor in a relationship for only four years, but subject to exclusivity, making most of its business with a single supplier that has prohibited any diversification. The relationship is relatively recent, but the dependence organised by the supplier weighs heavily. The notice due will be longer than length alone would suggest.

These three examples show the essential point: the reasoning does not start from the number of years to deduce mechanically a number of months. It starts from the question "how long would this victim really have needed, in its concrete situation, to reorganise without abnormal damage?" Length sets a first benchmark, and the other criteria correct it.

The eighteen-month ceiling resulting from the 2019 reform

Ordinance No. 2019-359 of 24 April 2019 introduced a major element of legal certainty for the party that terminates. Article L. 442-1, II now provides:

"In the event of a dispute between the parties on the length of notice, the liability of the party that terminates cannot be engaged on the ground of insufficient length provided it observed notice of eighteen months."

In other words, a party that grants eighteen months' notice is safe from any condemnation for insufficient notice, whatever the length of the relationship or the dependence. This limit is a safety ceiling, not a normal duration: the great majority of situations justify markedly shorter notice. The eighteen-month threshold is an end point reserved for the oldest, most dependent and most rigid relationships to convert.

For the business owner giving notice, this rule is a risk management tool: in high-stakes cases, granting eighteen months from the outset neutralises litigation on length. For the one receiving it, it caps the prospect of compensation based on insufficient notice, without closing off the other grounds (unannounced partial termination, unfair conditions during the notice period).

What compensation actually covers

A point that is often misunderstood deserves clarification. The loss compensated for sudden termination is not the loss of the relationship itself: it is the loss resulting from the abruptness, that is, from the absence of sufficient notice.

The reference calculation generally consists of assessing the margin that the victim would have earned during the notice period that should have been granted, less the notice actually observed. The reasoning is most often based on the margin on variable costs (sometimes called gross margin depending on accounting configurations), and not on turnover. In concrete terms, if the notice should have been twelve months and only three months were granted, compensation will cover the margin for the nine missing months. The quantification method, the documents to assemble and the frequent calculation errors are set out in our article on quantifying the loss by the gross margin method.

Other heads of loss may be added depending on the circumstances: unamortised dedicated investments, redundancy costs made necessary by the loss of business, stock that has become unsaleable. Conversely, a victim that has quickly found new outlets sees its loss reduced accordingly, because it has limited its losses.

What to do depending on whether you give or receive the notice

The reflex differs radically depending on the position held.

For the party that is considering terminating, the prudent course is to document the relationship before any notification: exact length, share of the partner's turnover, existence of dedicated investments, degree of exclusivity. The notice is given in writing, with a clear expiry date, and it must be effective: the usual conditions must be maintained throughout its duration. Reducing volumes or worsening pricing terms during the notice period deprives it of meaning and may recharacterise the termination as sudden despite the period announced. In sensitive cases, eighteen months' notice offers almost complete legal certainty on length.

For the party that is receiving the notice, the first task is to reconstruct the relationship objectively in order to measure whether the period granted is sufficient against the framework: length, volume, dependence, specificity. It must react quickly, in writing, disputing the length judged insufficient without ceasing to perform (a protective reply preserves rights without running the risk of being itself accused of non-performance). It is essential to keep the accounting records that allow the lost margin to be quantified, because the compensation will be calculated on that basis.

In both cases, the specialised court must be identified in advance: litigation under Article L. 442-1 falls within specifically designated commercial courts (tribunaux de commerce), and not any commercial court.

Conclusion

The length of notice on termination of a commercial relationship cannot be read from any scale. It is built from an anchor criterion, length, corrected by three factors that can multiply it: the partner's share of turnover, economic dependence and the difficulty of conversion linked to product specificity. The approximate ratio of one month per year of relationship is only a mental starting point, never a rule: a short but captive relationship may call for longer notice than an old but marginal one. The eighteen-month ceiling resulting from the 2019 Ordinance bounds the risk for the party that terminates, without turning that duration into a norm.

The actionable advice is simple: before sending or contesting a termination letter, have the map of the relationship drawn up in black and white (exact years, share of turnover, dedicated investments, exclusivity). It is this document, and not intuition, that will determine whether the notice is sufficient and, where relevant, the real amount of the compensable loss.

Frequently asked questions

How is the length of notice concretely calculated in the case of sudden termination? There is no statutory scale. The length is assessed in concreto from the length of the relationship, corrected by the partner's share of turnover, the degree of economic dependence and the specificity of the products. The case law often uses an indicative benchmark close to one month per year of relationship, but that benchmark is adjusted upwards in the case of strong dependence or dedicated investments. Article L. 442-1, II of the French Commercial Code is the basis of this calculation.

Is eighteen months' notice mandatory? No. Eighteen months is not a normal duration but a safety ceiling introduced by Ordinance No. 2019-359 of 24 April 2019. Article L. 442-1, II provides that the liability of the party that terminates cannot be engaged for insufficient length provided it observed eighteen months' notice. Most situations justify markedly shorter notice.

From when is a commercial relationship considered established? A relationship is established when it is regular, stable and continuing, to the point that the partner could reasonably believe in its continuation. A succession of one-off and random tenders is not enough; a continuous flow of orders over several years, by contrast, characterises an established relationship. The characterisation is made regardless of whether there is a single written contract.

Can a partial termination be penalised as a sudden termination? Yes. Article L. 442-1, II expressly refers to termination, even partial. Suddenly and significantly reducing order volumes or abruptly worsening the usual terms, without notice, may engage the liability of the party responsible in the same way as a total termination. It is a frequent trap for the party that believes it is protecting itself by terminating only partially.

On what basis is compensation for sudden termination calculated? Compensation does not cover the loss of the relationship but the loss linked to the abruptness, that is, to the insufficiency of notice. It generally corresponds to the margin on variable costs that the victim would have earned during the missing notice period. Other heads may be added, such as unamortised dedicated investments or stock that has become unsaleable.

Which court has jurisdiction for a dispute on sudden termination? Litigation based on Article L. 442-1 of the French Commercial Code falls within commercial courts (tribunaux de commerce) specifically designated by regulation, and not any commercial court. Bringing the claim before a court without jurisdiction may lead to a referral and a loss of valuable time. Specialised jurisdiction must therefore be checked before any action.

What should be done on receiving a notice letter judged too short? It is necessary to react quickly and in writing, disputing the length without ceasing to perform one's obligations, so as not to be accused oneself of non-performance. In parallel, the exact length of the relationship, the partner's share of turnover and the existence of dedicated investments should be reconstructed, because these elements determine both the insufficiency of the notice and the quantification of the loss.