For years, Spanish consumers seeking personal loans for home renovations, vehicle purchases, or other high-cost assets have operated in a legal gray area regarding interest rates. While the 1908 Law on the Nullity of Usurious Loan Contracts established that any agreement with interest “notably superior to the normal price of money and manifestly disproportionate” is void, the lack of a concrete numerical threshold left many borrowers at the mercy of lender discretion.
That ambiguity has now been largely resolved. A recent ruling by the Spanish Supreme Court has established a clear benchmark for what constitutes usury in personal loans, aligning the criteria with those previously applied to “revolving” credit cards. The court has determined that a personal loan may be considered usurious if the Annual Percentage Rate (APR)—or TAE in Spanish—exceeds the market average by six percentage points.
This legal precedent transforms the sentencia del Supremo sobre usura en préstamos personales from a case-specific decision into a powerful tool for consumer protection. By quantifying “notably superior,” the court has provided a mathematical formula for nullity, potentially opening the door for thousands of borrowers to challenge their contracts.
To determine if a loan crosses this threshold, the court relies on the average interest rate (TEDR) published by the Banco de España. This rate must be checked against the specific category of credit and the duration of the loan at the exact date the contract was signed.
The Anatomy of a Usurious Loan: A Case Study
The Supreme Court’s decision stemmed from a specific case involving a consumer who contracted a personal loan in February 2019. The loan amounted to 10,500 euros with a repayment term of four years. At the time of signing, the lender set a TAE of 16.61%.
When compared to the official data from the Bank of Spain for that same month, the average interest rate for personal loans with a duration of one to five years was 8.10%. The disparity was stark: an absolute increase of 8.51 percentage points, which represents a relative increase of 105% over the market average.
The High Court concluded that because the agreed interest exceeded the market average by more than six points, the loan was “notably superior to the average type,” thereby confirming its usurious nature. This 6% margin is now the critical dividing line for legal challenges in the Spanish consumer credit market.
| Metric | Contract Value | Market Average (TEDR) | Difference |
|---|---|---|---|
| TAE (APR) | 16.61% | 8.10% | +8.51 points |
| Loan Amount | 10,500€ | N/A | N/A |
| Duration | 4 Years | 1-5 Years | N/A |
What This Means for Affected Borrowers
The implications of this ruling are significant for anyone holding a consumer loan with a high interest rate. According to the Association of Financial Users (Asufin), borrowers whose TAE is at least six percentage points higher than the Bank of Spain’s TEDR for the same category and date can now seek the nullity of their contracts.
The legal effect of such a nullity is profound. If a contract is declared void due to usury, the consumer is not simply granted a lower interest rate. rather, the interest and commission clauses are wiped away entirely. The legal consequences include:
- Principal Only: The borrower is only required to return the original capital received, without any added interest or fees.
- Credit for Overpayments: If the borrower has already paid more than the principal amount, any payments made toward interest or commissions are applied to reduce the remaining capital.
- Right to Refund: If the total amount paid already exceeds the original principal, the consumer is entitled to a refund of the excess, including legal interest from the date of each payment.
Who is most at risk?
While this affects all personal loans, the impact is most acute for those with “quick” loans or credits from entities that target modest salaries. These products often carry higher risks for the lender, which are passed to the consumer through aggressive interest rates that may now fall under the court’s definition of usury.
Next Steps and Legal Recourse
For consumers wondering if they are affected, the first step is to locate the exact date of their contract and the TAE listed in the fine print. This must then be compared with the historical TEDR data provided by the Spanish Official State Gazette (BOE) or the Bank of Spain’s statistical portals.
Legal experts suggest that the process typically involves a formal claim to the financial institution, followed by a judicial filing if the bank refuses to adjust the contract. Given the Supreme Court’s clarity on the “six-point rule,” the likelihood of success for claims meeting this criteria has increased substantially.
Disclaimer: This article is provided for informational purposes only and does not constitute legal or financial advice. Individuals seeking to challenge a loan contract should consult with a qualified legal professional.
The financial sector is now expected to adjust its pricing models to avoid the risk of mass nullity claims. The next critical checkpoint for consumers will be the observation of how lower courts apply this 6% threshold in upcoming civil suits and whether banks initiate voluntary settlements to avoid litigation.
Do you have a personal loan that might exceed these limits? Share your experience in the comments or share this guide with someone who may be affected.
