The lightning loan of China Merchants Bank bears interest on a daily basis, and can be repaid with the loan. In fact, there is no such thing as prepayment. Because interest is calculated on a daily basis, the earlier the repayment, the less interest will be paid. According to the official of China Merchants Bank, the annual interest rate of lightning loans starts from%, which translates into daily interest of%.

The interest of China Merchants Bank's lightning loan is related to three factors: loan principal, loan interest rate and loan term. The specific data of these factors will generally be explained in the loan contract. When the specific data is known, the interest of lightning loan can be calculated by a formula, that is, "interest = loan principal × loan interest rate× loan term".