Creditworthiness assessment: legal framework in Spain and the European Union
The duty to analyze a consumer’s repayment capacity before granting credit does not come from a single law, but from the overlap of three frameworks that have been piling up over the last fifteen years: transparency and banking customer protection, data protection and, more recently, artificial intelligence. Understanding how they fit together is what separates a formally correct procedure from a truly defensible one.
The duty to analyze in consumer credit
Under Spanish law, the obligation to assess consumer creditworthiness is laid down in Law 16/2011 on Consumer Credit Agreements, and is developed through the transparency rules and the responsible lending practices supervised by the Bank of Spain. Real estate credit has a parallel and stricter regime under Law 5/2019. The EU consumer credit reform strengthens these criteria, broadens the sources that must be consulted and, for the first time, expressly regulates the use of automated models.
What data protection adds
Checking credit bureau files, the supervisor’s central credit register or account transactions through aggregation services are all processing of personal data that require a legal basis, information to the data subject and defined retention periods. When a rejection is based solely on automated processing, the applicant has the right to obtain human intervention, to express their point of view and to contest the decision: three safeguards that many institutions have not built into their real customer service workflow.
The new layer: the EU Artificial Intelligence Act
Systems intended to evaluate the creditworthiness of natural persons or establish their credit score are classified as high-risk systems. This entails obligations on risk management, governance of training data, technical documentation, event logging, transparency toward users, effective human oversight and appropriate levels of accuracy and robustness. For a lending fintech, this layer usually takes the most effort to implement, because it requires documenting what until now was the data team’s tacit knowledge.
Where procedures break down
In our experience, the problem rarely lies in the absence of a lending policy: it lies in the gap between the written policy and what the system does in production, and in the inability to reconstruct after the fact which version of the model was in force on the day of the transaction. When the complaint arrives, the institution has the policy and has the result, but cannot connect the two. That gap is what we work on first.
Creditworthiness assessment
Responsible lending
Scoring
CIRBE
Credit bureau files
Automated decisions
AI Act
Repayment capacity
Lending policy