A co-owner wants to contest a general assembly decision. A minority partner wishes to sue a service provider of their company. A creditor seeks to recover an unpaid debt. In each of these cases, the first question of the court does not concern the substance of the dispute, but rather the very right of the person to take legal action. This is exactly what Article 31 of the Code of Civil Procedure governs.
Legitimate interest and standing to sue: what Article 31 CPC concretely requires
Article 31 of the CPC establishes a direct rule: “Action is open to all those who have a legitimate interest in the success or rejection of a claim.” We could stop there, but the continuation of the text adds a reservation that changes a lot in practice.
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The text specifies that in certain cases, the law reserves the right to act to specifically qualified persons. This means that having an interest is not always enough. Sometimes it is necessary to demonstrate that one also has the standing to sue, that is, a specific legal title granted by a text.
In practice, the judge examines two successive filters even before looking at the substance of the case:
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- The interest to act: the claimant must prove a personal, direct, existing, and current advantage in obtaining a favorable decision. A hypothetical or purely moral interest generally does not pass this filter.
- The standing to sue: in cases where the law grants the right to act to certain persons (a syndic, a liquidator, a public prosecutor), no one else can substitute for them, even with an obvious interest.
- The connection with Article 122 CPC: if either of these two elements is lacking, the opponent can raise a plea of inadmissibility, which leads to the rejection of the claim without examination of the substance.
To find explanations on Article 31 CPC applied to various disputes, it is noted that this dual requirement generates the majority of admissibility disputes in civil procedure.
Individual action of the partner: a practical case where Article 31 often blocks
One of the areas where Article 31 produces the most rejection decisions concerns actions by partners against the contracting parties of their company. The scenario is classic: a company suffers damage due to a service provider, and a partner decides to act alone to obtain compensation.
The Court of Cassation maintains a strict line on this point. The partner can only act personally if they demonstrate a personal and distinct harm from that suffered by the company. A loss of value of their shares, for example, is considered a “ripple effect” harm from the social damage, which is not sufficient.
A study by CREDA (CCI Paris Île-de-France) confirms that the trend in case law is towards an increasing restriction of these individual actions. Judges increasingly reclassify the harm claimed by the partner as social harm, which triggers a plea of inadmissibility based on Articles 31 and 122 CPC.
On the ground, this means that a minority partner who believes they have suffered a wrong must, before any summons, ask themselves a precise question: does my damage exist independently of that of the company? If the answer is unclear, the risk of rejection for lack of interest to act is high.
Plea of inadmissibility and Article 122 CPC: the sanction mechanism
When discussing Article 31, one cannot ignore Article 122 of the same code. It is this article that gives the opponent the corresponding procedural weapon: the plea of inadmissibility.
Specifically, if a defendant believes that the claimant has neither a legitimate interest nor standing to sue, they raise this exception. The judge must then resolve this question before examining the substance. And the sanction is radical: the claim is declared inadmissible without the judge ruling on the dispute.
Difference with a procedural exception
Plea of inadmissibility is often confused with a procedural exception (lack of jurisdiction, nullity of the summons). The distinction has direct practical consequences. A procedural exception must be raised before any defense on the merits, under penalty of inadmissibility. The plea of inadmissibility, on the other hand, can be invoked at any time during the procedure, even on appeal.
This means that a defendant can wait to see how the trial evolves before raising the lack of interest to act. For the claimant, the risk therefore exists at every stage of the procedure.
Possible regularization
A point that practitioners know well: the plea of inadmissibility can sometimes be regularized during the proceedings. If the claimant acquires the standing or interest that they lacked after the introduction of the action, the judge may consider that the condition is met. Returns on this point vary according to jurisdictions, but the Court of Cassation admits this regularization in certain configurations.
Standing to sue reserved by law: concrete situations to know
The second part of Article 31 addresses cases where a special text specifically designates who can act. We then move away from the general regime of legitimate interest to enter a regime of authorization.
Some common examples:
- In company law, only the liquidator can act on behalf of a company in liquidation. A former director or a creditor cannot substitute for them.
- In co-ownership, certain actions fall exclusively under the syndic acting on behalf of the general assembly. An isolated co-owner attempting to act in place of the syndic faces a lack of standing.
- In family law, the action to contest parentage is reserved for persons exhaustively listed by the Civil Code, even if other relatives could justify an interest.
In these hypotheses, the interest of the claimant may be perfectly real and legitimate. It is the standing that is lacking, and Article 31 closes the door.
Legal action and Article 31 CPC: reflexes to have before filing
Before launching a procedure, one saves time by systematically checking two things. First, is the harm claimed personal, direct, and current? A future or potential damage does not meet the interest condition. Secondly, is there a special text that reserves the action to a category of persons? If so, it must be verified that one is part of that category.
Neglecting this verification exposes one to a plea of inadmissibility that can occur late in the procedure, after months of work and expenses incurred. Article 31 of the CPC is not a theoretical formality. It is the first lock that the court activates, and the one that dismisses the most cases even before a judge looks at the substance.