Reference Decision: French Supreme Court • No. 19-17.749 • 2020-11-12 • View decision →
Imagine: you are a landlord in Valbonne, and you rent a flat to a tenant who, to obtain CMU-C (free supplementary health insurance), declares a lower rent than he actually pays. The CPAM (Primary Health Insurance Fund) finds out and imposes a financial penalty of several hundred euros on you, without even hearing you. You wonder: do they have the right to do this without letting me explain? The answer lies in a decision of the French Supreme Court of 12 November 2020, which decided a crucial question: the difference between a simple false declaration and fraud.
This case, originating from a dispute between an insured person and the CPAM of the Drôme, was finally decided by the highest French court. The problem was simple: the director of the CPAM had imposed a penalty on an insured person for making a false declaration about his residence, without first seeking the opinion of the penalties commission (a panel of experts responsible for giving an opinion). The insured person challenged this decision, arguing that the procedure had not been followed.
The French Supreme Court agreed with him. It clarified that for a false declaration to be considered fraud (allowing the commission's opinion to be bypassed), it must be accompanied by a false document (a false supporting document, false invoice, etc.). A simple erroneous declaration, even intentional, is not enough. This decision is a victory for insured persons and a reminder to social security bodies. Let's break it down together.
The Facts: A Story Like Many Everyday Occurrences
Mr X, a landlord in Mandelieu, had a dispute with the CPAM of the Drôme. He had received sickness benefits by declaring that he resided in a property in Valence, when in fact he lived elsewhere. The CPAM, after investigation, considered that he had made a false declaration to obtain rights unduly (for example, the calculation of his daily allowances). The director of the CPAM imposed a financial penalty of €1,500 on him, without consulting the penalties commission. Mr X challenged this decision before the Social Security Affairs Tribunal (TASS), then the Grenoble Court of Appeal, and finally the French Supreme Court.
He did not deny having made a false declaration. But he argued that the CPAM should have, before penalising him, obtained the opinion of the penalties commission, as provided for in Article L. 114-17-1 of the Social Security Code (the text governing penalties). According to him, his false declaration was not fraud, because he had not produced a false document. The CPAM, for its part, argued that the false declaration itself constituted fraud, which allowed it to dispense with the commission's opinion.
The legal journey was long: the TASS first annulled the penalty for procedural defect, the Court of Appeal reinstated it, and the French Supreme Court ultimately quashed the Court of Appeal's decision, ruling in favour of Mr X. A real legal saga!
The Reasoning of the Court — Analysed
The French Supreme Court examined the applicable texts. First, Article L. 114-17-1 of the Social Security Code (in its version in force before 2018) provides that the director of a local health insurance body may impose a financial penalty on beneficiaries who, for example, provide false declarations. But the same article specifies that, except in cases of fraud, the penalty may only be imposed after the opinion of a special commission (the penalties commission). Next, Article R. 147-6 of the same code lists the punishable behaviours, including false declarations about residence, resources, etc. Finally, Article R. 147-11 defines what constitutes fraud: acts committed to obtain an unjustified benefit, where the insured person has created or used a false document (false prescription, false invoice, false proof of address, etc.).
The Court deduced that fraud, within the meaning of these texts, requires the production of a false or forged document, in addition to the false declaration. In other words, a simple false declaration, verbal or written, without a falsified supporting document, is not fraud. And in that case, the normal procedure with prior opinion of the commission applies. In this case, Mr X had only made a false declaration (about his residence), but had not produced a false document. Therefore, the CPAM should have consulted the commission. It did not, so the penalty is annulled.
This reasoning is important because it protects insured persons against arbitrary decisions. It confirms that the concept of fraud is strict and cannot be extended to every false declaration. This is not a change in precedent, but a welcome clarification.
What This Changes for You — Practically
If you are a landlord in Valbonne or elsewhere, this decision concerns you if you declare rental income to the CPAM for the calculation of your rights (for example, for CMU-C). If by mistake you understate your rents, the CPAM may sanction you, but it must first go through the penalties commission. You will therefore have the opportunity to explain yourself before any penalty. On the other hand, if you produce a false lease to justify a lower rent, then it is fraud, and the CPAM may penalise you directly.
For a tenant in Mandelieu, if you declare a lower rent than the reality to obtain housing benefit or CMU-C, a simple erroneous declaration (even intentional) does not allow the CPAM to impose a penalty without the commission's opinion. But beware: if you provide a false rent receipt, it is fraud, and the simplified procedure applies.
In practice, if you receive a penalty notice from the CPAM without having been heard by the commission, you can challenge it by relying on this decision. The deadline for challenge is generally two months from the notification. And if the penalty is annulled for procedural defect, the CPAM may restart the procedure correctly, but it cannot impose a heavier penalty.
undefined, I have encountered cases where the CPAM had imposed penalties of €500 to €2,000 for simple declaration errors. Thanks to this precedent, we have been able to obtain the annulment of the penalties and, in some cases, damages for abusive procedure.
Four Tips to Avoid This Type of Dispute
- Check your declarations before sending them: whether for the CPAM, CAF, or tax authorities, an even unintentional error can lead to sanctions. Carefully reread each document.
- Keep all your supporting documents: leases, rent receipts, invoices, etc. If the CPAM questions you, you can prove that your declarations are accurate.
- Never produce a false document: even if it seems trivial (e.g., altering a date on a proof of address), it can be classified as fraud and expose you to heavier sanctions (penalty without commission opinion, criminal prosecution).
- If you receive a penalty, do not pay without checking: ask whether the penalties commission has been consulted. If not, you can challenge it. Consult a specialised lawyer to assess your chances.
Further Reading: Related Case Law and Developments
This decision is part of a line of French Supreme Court rulings protecting the rights of the defence in matters of administrative penalties. For example, in a decision of 13 February 2020 (No. 18-26.597), the Court had already ruled that the director of the CPAM could not impose a penalty without respecting the adversarial principle (i.e., allowing the insured person to present their observations). The present decision goes further by clarifying the concept of fraud.
Conversely, some Courts of Appeal had a broader interpretation of fraud, including false declarations not accompanied by false documents. The French Supreme Court has therefore harmonised the case law. Now the trend is clear: fraud requires a material false document. This means that CPAMs will have to be more rigorous in their procedures. In the future, it is likely that the legislature will amend the texts to clarify further, but in the meantime, this decision is a reference.
Key Points to Remember
FAQ:
- What is a false declaration under the Social Security Code? It is the act of declaring inaccurate information (e.g., false age, false residence, false income) to obtain or increase benefits.
- What is fraud according to the French Supreme Court? It is a false declaration accompanied by a false document (e.g., false proof of address, false prescription). Without a false document, it is not fraud.
- What is the consequence of classifying as fraud? The CPAM may impose a penalty without consulting the penalties commission. The procedure is faster, but the insured person has fewer guarantees.
- What should I do if I receive a penalty without commission opinion? You can challenge the decision within two months before the judicial court (social division). Invoke the violation of Article L. 114-17-1 and the French Supreme Court case law.
- Can I be criminally prosecuted for a false declaration? Yes, if fraud is established (with a false document), it may constitute fraud, punishable by up to 5 years' imprisonment and a fine of €375,000. For a simple false declaration, sanctions are only administrative.
Are you in a similar situation? An initial 30-minute consultation with Maître Zakine (€45) can save you months of proceedings — and often much more. Book an appointment →

