Spanish Supreme Court rules on mortgage interest transparency

The Spanish Supreme Court has issued landmark rulings regarding mortgage transparency, impacting both subrogated loans and reverse mortgages.

In a recent decision (Sentence 161/2026), the Court ruled on subrogated mortgages where buyers assumed a developer's existing loan without receiving proper documentation regarding financial conditions. The Court determined that because the bank failed to prove the delivery and valid incorporation of the interest clause, the clause is considered non-existent. Consequently, the loan remains valid without interest, and banks are required to refund all interest collected to date.

In a separate significant ruling, the Supreme Court addressed reverse mortgages, annulling a remunerative interest clause due to a lack of transparency. The Court found that the financial institution failed to clearly inform the consumer of the product's economic consequences. This ruling, which follows European Union justice doctrine, has already resulted in a refund of approximately 80,000 euros to an affected family.

These legal developments coincide with a stagnant market for reverse mortgages in Spain, with only 499 operations recorded in 2025. The Bank of Spain is currently engaging with banks, insurers, and notaries to investigate the regulatory and trust-based barriers preventing the growth of this financial instrument.