Kuwait Court of Cassation principle number 530

Interest received by the creditor on his debt. Interest may not be charged on its accrued amount, nor may its total exceed the principal. The exception. Cases in which the Commercial Law permits compound interest, such as interest on current accounts with banks, on which interest upon interest may be calculated while the account remains open. That prohibition pertains to public policy. Its import. The person who paid that interest has the right to recover the excess over the statutory limit pursuant to Article (264) of the Civil Code. - An action to recover amounts paid in excess. Differs in subject matter from the action in which judgment was rendered for the principal debt and its interest. The implication of that. The latter judgment has no binding effect in the recovery action because the subject matter of each differs.