Interest calculation: the basis of the problem? Good banking practice.
The principles of good banking practice are a series of guidelines laid down by the Banco de España to steer banks towards responsible, diligent management that is respectful to customers. Some of these principles, which are applied in the resolution of claims lodged with the Market Conduct and Claims Department, can be found on the Bank Customer Portal.
We are publishing a new principle today relating to interest calculation.
See the published principles