Polish bankruptcy law fails consumers with unfair loan terms - CJEU in Wiszkier (C-582/23)

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In July 2025, the CJEU issued a judgment in Wiszkier (C-582/23), concerning a Polish case involving a consumer mortgage loan indexed to Swiss francs. In this instance, the consumer had to declare bankruptcy after being unable to meet, among other obligations, their mortgage payments. Although the bankruptcy court found that the contract potentially contained unfair terms, raising the possibility of the contract being null and void, Polish law prohibits this court from examining this issue further. Under Polish law, even if the unfairness of contract terms had not been previously raised by the consumer, the bankruptcy court is only competent to approve or reject a repayment plan based on a list of claims drawn up by the trustee (paras 26-27). At most, the court may stay the proceedings and refer the unfairness' matter to another competent, supervisory authority (paras 29 and 45). 

Unfairness assessment by the bankruptcy court 

Decision: Incompatibility with EU law. Unsurprisingly, the CJEU found Polish law incompatible with EU law. Specifically, it held that the Unfair Contract Terms Directive precludes national provisions that prevent a bankruptcy court from examining the unfairness of contract terms in a loan agreement underlying a claim included in the list of claims, or from amending that list, where no such assessment has been conducted by the authority preparing the list (para 58).

Although EU law leaves enforcement of consumer protection rules against unfair contract terms to the Member States, such national rules must comply with the principles of equivalence and effectiveness (para 40). The CJEU found that the principle of effectiveness was violated in this case. While Polish law allows a bankruptcy court to stay proceedings so that a supervisory court may assess the potential unfairness of contract terms, this process introduces delay and exposes consumers to further financial hardship. During the stay, the bankrupt's salary continues to be withheld by the bankruptcy estate, which may discourage consumers from raising objections based on unfair terms (para 46). Notably, monthly repayments set in bankruptcy proceedings are often lower than the salary amounts withheld during the proceedings (para 47), exacerbating the financial strain. Moreover, in this case, although the consumer had acknowledged all the claims listed by the trustee, this was done without legal representation and likely without understanding that an unfairness objection could be raised (para 52). The consumer only raised this issue. through legal counsel, once the case reached the bankruptcy court (para 53). The CJEU clarified that it is irrelevant whether the list of claims has become res judicata (para 55).

Interim measures by the bankruptcy court

Decision: The CJEU further ruled that national law must enable bankruptcy courts to grant interim measures to protect consumers while the fairness of a claim included in the list is under judicial review.

The Court reiterated that ensuring effective consumer protection against unfair terms may require granting interim measures, for example, adjusting monthly instalments during prolonged proceedings to prevent consumers from being forced to pay more than the amount actually due if the unfair terms were ultimately invalidated (paras 67-68). As noted by the referring court, the fear of higher interim payments to the bankruptcy estate may deter consumers from raising unfairness objections altogether (para 69). The court responsible for granting interim measures must consider: "whether there is sufficient evidence that the contractual terms concerned are unfair, whether there is a real possibility that the bankruptcy estate is already sufficiently funded to satisfy the creditors, with the exception, as the case may be, of the claim concerned, as well as the bankrupt's financial situation and the risk of that person having to endure a prolongation of the bankruptcy proceedings which could result in an unwarranted deterioration in his or her financial situation pending the conclusion of those proceedings." (para 71)