The case, explained
Supreme Court, United Sections: The principle of proportionality in the recovery of social security overpayments
7 min read · Updated October 2026 · Editorial oversight: Avv. Federico Papa
The issue of recovering overpaid social security benefits has received a definitive ruling from the United Sections of the Supreme Court. The conflict between the need for legality in public spending and the protection of citizens acting in good faith has been resolved by applying the principle of proportionality. While a previous article in this series examined the Public Administration's liability for damages resulting from breached legitimate expectations, this contribution focuses on the institution's entitlement to demand the restitution of the capital. This decision marks a turning point for thousands of pensioners who, due to administrative errors not attributable to fraud, have received demand notices for thousands of euros. Through an examination of the regulatory framework and the analysis of our twin case, we will explore how the Supreme Court has balanced the social security institution's power of correction with the need to avoid overburdening the financial situation of the blameless beneficiary.

In brief
The United Sections of the Supreme Court have ruled that the recovery of social security overpayments cannot occur automatically. Even where special statutory rules do not expressly prohibit restitution, the institution must observe the principles of proportionality and the protection of the good faith pensioner's legitimate expectations. Errors exclusively attributable to the Administration, combined with the passage of a substantial period of time, render recovery unlawful if it disproportionately impacts the citizen's means of subsistence, overriding the strict application of civil code provisions.
The fact
The case reached the Supreme Court following an appeal lodged by INPS for the recovery of survivor's pension installments paid in excess. As reported by specialized legal publications, including NT+ Lavoro (Il Sole 24 Ore) and Altalex, the social security institution sought the restitution of sums disbursed over an extended period due to its own error in applying coordination rules between different pension schemes. The proceedings required the intervention of the Civil United Sections to resolve a deep judicial conflict regarding the legal nature of overpayments.
The findings in the lower courts ruled out any fraudulent conduct or false statements by the pensioner, confirming her subjective good faith. Nevertheless, the institution had initiated recovery long after the statutory annual verification deadlines, contending that, in the absence of a specific derogatory rule, the general civil law principle of full restitution should apply. The final ruling overturned this approach, placing the protection of the weaker party in the public law relationship at the center of the legal system.

The rules at play
The core of the dispute lies in the relationship between opposing regulatory frameworks.
- Article 2033 of the Civil Code governs objective overpayment, establishing that anyone who has received an undue payment must return it, regardless of fault.
- Article 52 of Law no. 88/1989 provides for the non-recoverability of pensions paid pursuant to a formal decision, except in cases of fraud by the beneficiary.
- Article 13 of Law no. 412/1991 acts as an authentic interpretation, limiting protection to errors solely attributable to the institution, provided the pensioner submitted a complete and truthful declaration.
In addition, Article 1 of Protocol 1 to the ECHR protects property rights and the stability of settled legal positions. The application of these special rules establishes the citizen's right to retain the disbursed amounts (non-recoverability), neutralizing the institution's restitution claim, which would otherwise rely on a simplified burden of proof based solely on the objective occurrence of a calculation error.
What the jurisprudence says
Prior to the clarifying intervention of the United Sections, case law oscillated between a strict approach, which applied the civil code provisions whenever express statutory exceptions were absent, and a constitutional-solidaristic approach. Constitutional and European case law had already outlined a clear direction, emphasizing that the compulsory recovery of sums intended for basic subsistence cannot be executed indiscriminately. Courts had clarified that the Administration cannot transfer the burden of its own technical errors onto the citizen if the beneficiary had no reasonable means of identifying the anomaly.
The principle established by the United Sections affirms that the protection of legitimate expectations prevails over automatic recovery mechanisms. The trial judge must assess whether the recovery is proportionate, taking into account:
- the nature of the error (whether purely internal to the institution);
- the duration of time elapsed (which consolidates the belief of entitlement);
- the financial situation of the pensioner. Case law has thus recognized that blameless expectation constitutes a protected legal status that restricts the Administration's rights as a creditor.
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What it teaches professionals
- Thoroughly document the client's good faith by gathering all communications with the institution to demonstrate the absence of misrepresentation or withheld facts.
- Promptly raise the defense of disproportionate recovery, submitting the ISEE declaration and evidence of necessary living expenses.
- Determine whether the institution's error stemmed from complex statutory interpretation, which generally precludes the recognizability of the mistake by a layperson.
References: Articolo 2033 Codice CivileArticolo 52 Legge 88/1989Articolo 13 Legge 412/1991Articolo 1 Protocollo 1 CEDU
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Frequently asked questions
What does the law provide if INPS asks for the return of pension sums?
Where the recovery request concerns overpayments resulting solely from administrative error to a beneficiary acting in good faith, the protection of legitimate expectations allows the claim to be challenged in administrative or judicial proceedings.
After how long can INPS no longer ask for money back?
In addition to statutory deadlines for pension adjustments, case law establishes that the passage of a significant period of time strengthens the beneficiary's position, rendering recovery unlawful if it breaches the principle of proportionality.
Can the pension refund be paid in installments?
The recovery of overpayments, where lawful, must conform to the principle of proportionality by providing repayment plans that remain compatible with a dignified standard of living.
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