Not tall. The installment interest rates of different banks are different, and the annualized interest rate ranges from 13% to 17%, while the installment interest rate of credit card 3.87 is not high. Credit card installment payment refers to the process that the bank pays the consumer funds of the goods (or services) purchased by the cardholder to the merchant in one lump sum, and then the cardholder repays the money to the bank in installments and pays the handling fee. According to the cardholder's application, the bank deducts the consumption funds and handling fees by stages through the cardholder's credit card account, and the cardholder repays according to the monthly recorded amount.