A business partner ends a relationship without complying with the contractual conditions, or with notice that is manifestly insufficient given the length and importance of the relationship. The victim of this termination suffers real, sometimes sudden, harm and wishes to obtain compensation. The question then is how to calculate it: how much can you claim, on what basis, and how do you prove it?
There is never a universal answer. It depends on the nature of the contractual relationship, the circumstances in which the termination occurred, the loss actually suffered and the quality of the evidence gathered. But common rules structure this calculation, and knowing them helps you anticipate the process and assess your prospects before bringing proceedings.
- The principle: full compensation puts the victim back in the position they would have been in had the termination been carried out properly.
- The main head of loss: loss of gross margin over the notice period that should have been given, not the lost turnover.
- The calculation: average turnover with the defaulting party × gross margin rate × length of the missing notice period.
- Additional heads of loss: reorganisation costs, unamortised investments, damage to image, provided they are proven.
- Penalty clause: simplifies proof, but the court may reduce or increase it if the amount is manifestly excessive or derisory.
- The file: contracts, invoices, tax returns (liasses fiscales), the termination notice and prior correspondence are the basic documents.
- Before acting: assess the other party’s solvency and the cost/benefit ratio before any court proceedings.
The legal basis: full compensation for the loss
French law on contractual liability rests on one principle: a party that suffers a breach by its co-contractor is entitled to be placed in the position it would have been in had the breach not occurred. This is the principle of full compensation for the loss.
For wrongful or abrupt termination, this means in practice compensating what the victim would have earned had the relationship continued under normal conditions, or had sufficient notice been given. It is not what the victim hoped to earn in an ideal scenario. It is what the victim would actually have received had the termination been handled properly.
This distinction matters in the calculation. Courts do not compensate hopes or optimistic projections. They compensate a loss that is certain, direct and causally linked to the breach complained of.
The main head of loss: lost margin over the missing notice period
In the vast majority of commercial termination disputes, the central head of compensation is the loss of gross margin over the notice period that should have been given.
The reasoning is as follows: had six months’ notice been given, the victim could have generated the corresponding turnover over that period and earned a margin on it. It is this lost margin that constitutes the main loss, and it is this that the court compensates.
Three factors are decisive in calculating this amount:
The length of the notice that should have been given
It may be set by the contract itself, or by law if the contract does not provide for it. For abrupt termination of established commercial relationships, Article L. 442-1, II of the French Commercial Code (Code de commerce) (in French) provides that termination must be preceded by written notice taking into account, in particular, the length of the commercial relationship and commercial practice. Whether this notice is adequate is assessed in concreto, and contractual notice that is manifestly insufficient given the length and intensity of the relationship may be held inadequate. The same provision, however, excludes liability for insufficient notice where the party terminating the relationship has given eighteen months’ notice.
Average turnover generated with the defaulting party
The average over the most recent financial years is generally used, often the last three years or the last twelve months depending on the circumstances, to reconstruct the level of business the relationship represented for the victim.
The gross margin rate applicable to this business
This point is often underestimated. The loss is not the lost turnover but the margin earned on that turnover. If business with the defaulting customer generated a gross margin of 35%, then 35% of the turnover corresponding to the missing notice period is the base amount of compensation.
“The reflex is often to present lost turnover as the basis of the claim. It is a common mistake, and it weakens the case from the outset. What the court compensates is the margin you would have earned on that turnover, that is, what remains after covering your variable costs. If your gross margin is 30%, your base loss is 30% of the turnover corresponding to the missing notice period, not 100%. Building the claim on the right basis from the outset also makes it more credible and harder to challenge.”
These figures must be documented and defensible. Income statements for recent financial years, tax returns, invoices issued to the defaulting party and cost accounting data are the tools that make it possible to reconstruct these figures credibly before a court.
Additional losses
Lost margin over the notice period is not necessarily the only head of compensable loss. Other losses may be claimed, provided they are proven.
Reorganisation costs
If the abrupt termination forced the victim to incur immediate expenditure to cope with the sudden loss of a partner (staff reductions, termination of contracts entered into in anticipation of the relationship, conversion costs), that expenditure may be included in the loss.
Unamortised specific investments
If the victim had made investments dedicated to the terminated relationship (purchase of specific equipment, development of tools, adaptation of processes) that cannot be redeployed, the corresponding loss may be claimed.
Damage to image or reputation
Harder to quantify, this head of loss is sometimes accepted where the termination was made public in circumstances damaging to the victim’s commercial reputation. It requires concrete proof of the negative effects on the business.
In all cases, these additional losses can only be recovered if they are real, certain and sufficiently documented. A court does not compensate a hypothetical loss or an unproven loss of opportunity.
The question of the penalty clause
Where the contract contains a penalty clause (clause pénale), a fixed indemnity provided for in the contract in the event of wrongful termination or failure to give notice, the calculation is simplified. The victim does not have to prove the extent of its actual loss: it relies on the clause and claims the fixed amount provided for.
But this apparent simplicity has a downside. French courts have a power to adjust (pouvoir de modération) penalty clauses that are manifestly excessive or derisory. A penalty clause whose amount is out of proportion to the loss actually suffered may be reduced by the court. This possibility must therefore be anticipated in the strategy of the claim.
The reverse is also true: if the penalty clause provides for an amount lower than the actual loss, the victim cannot in principle obtain a higher sum (Article 1231-5 of the French Civil Code (Code civil) (in French)). The court may, however, even of its own motion, increase the penalty if it is manifestly derisory.
What the evidence file must contain
The strength of a claim for compensation depends on the quality of the evidence as much as on the quality of the legal arguments. Here are the elements that form the basis of a well-built file.
Evidence of the relationship and its length: contracts, purchase orders, invoices, business correspondence over several years. These show that the relationship was an established one and how long it lasted, which are decisive in assessing a reasonable notice period.
Figures for reconstructing turnover and margin: tax returns, invoicing statements per customer, cost accounting data. These figures must be consistent and capable of cross-checking.
Documents relating to the termination itself: the termination notice, the date of receipt, the notice period given, the circumstances in which the termination was announced. These make it possible to characterise the breach.
Prior correspondence that may reveal bad faith, a deliberate intention not to honour commitments or, on the contrary, an attempt at amicable negotiation that came to nothing.
Before acting: assess whether the claim is viable
Court proceedings for wrongful termination are an investment of time and resources. Before committing to them, a realistic assessment of the situation is essential: is the loss suffered sufficiently documented to support a quantified claim? Is the breach complained of clearly characterised? Is the other party solvent? Is the ratio between the cost of the proceedings and the expected gain favourable?
In practice, many commercial termination disputes are settled amicably, often thanks to a well-built formal notice (mise en demeure) that shows the other party that the victim has a solid file and real determination. This formal notice also documents the attempt at amicable resolution.
“In many commercial termination cases, the formal notice settles or unblocks the situation before the court is seised. Not because of goodwill on the other side, but because a well-built formal notice, which quantifies the loss precisely and shows that the file is solid, changes the balance of power. The other party then weighs the cost of proceedings against that of an amicable settlement. That is why the work of building the file begins before the formal notice, not when the writ of summons (assignation) is drafted.”
If you are facing a wrongful termination of a contract, or wish to assess your options before deciding on a course of action, we are available to analyse your file and give you a concrete assessment of what you can reasonably obtain.
