This research investigates the notion of bank interest rates along with their legal underpinnings, making a distinction between their legal definitions and terminological meanings. It establishes that bank interest rates represent the monetary compensation for utilizing borrowed funds, characterized by their monetary nature, temporal relation, and connection to bank account balances. Furthermore, it is assumed that failure to meet financial obligations results in harm. The study delves into the legal foundations of interest by scrutinizing pertinent legal documents, highlighting the differing interpretations of interest in legal contexts versus delay interest as determined by judicial decisions. Recommendations from the research emphasize the necessity for cohesive interest legislation that standardizes legal definitions, bolsters the role of regulatory agencies in price oversight, and enhances transparency alongside financial literacy to achieve a more equitable balance in banking operations. Moreover, the study advocates for the incorporation of digital tools in managing bank interest rates, such as employing digital systems for precise tracking and calculation of interest, as well as utilizing digital analytics to evaluate the effects of interest on financial stability and banking transactions.