Резюме

The present study analyses the topic of the form of validity of the interest clause in Bulgarian Civil Law. There are two questions of particular importance that need to receive answers: whether the written form of validity of the interest clause set for the loan is applicable in all other civil relations; whether the form of validity of the main deal requires the same form of validity of the accessory deal by default. Since the non-compliance with the form of validity leads to the invalidation of the deal and it cannot give rise to the legal consequences desired by the parties, it is obvious that the discussion has not only theoretical but also significant practical dimensions.