1. The annual interest rate of bank credit cards is 19.86%. 2. At present, the credit card interest of all banks generally bears interest on a daily basis, with a daily interest rate of .5% and compound interest on a monthly basis. Take the credit card spending of 1, yuan as an example, and the daily interest rate is .5% in one year. Then, the calculated annual interest is 11,985.65 (with compound interest), the net interest is 1,985.65 yuan, and the annual interest rate is 1985.65/1, = 19.86%. 3. The interest rate of credit card bill installment is a repayment method of equal principal and interest, including mortgage, which is a repayment method of equal principal and interest. (Matching principal and interest means repaying the same amount every month during the repayment period, including principal and interest). Credit card, also called debit card, is a credit certificate issued by a commercial bank or credit card company to a qualified consumer. It is in the form of a card with the name, expiration date, number and cardholder's name printed on the front, and a magnetic stripe and signature strip on the back. Consumers with credit cards can go to special commercial service departments for shopping or spending, and then the bank will settle accounts with merchants and cardholders, and cardholders can overdraw within the prescribed limit. The credit card stipulated in the relevant laws of our country (Interpretation of the Standing Committee of the National People's Congress on the Provisions on Credit Cards) refers to the electronic payment card issued by commercial banks or other financial institutions with all or some functions such as consumer payment, credit loan, transfer settlement, cash deposit and withdrawal. On December 1st, 217, the Standard of English Translation and Writing for Public Service was officially implemented, which stipulated that the English name of the credit card standard was Credit Card

. Credit card consumption is a non-cash transaction payment method, and there is no need to pay cash when spending, and repayment will be made on the Billing

Date. Credit cards are divided into credit cards and quasi-credit cards. Credit cards refer to credit cards in which cardholders have a certain credit limit and can spend first and then repay. Quasi-credit card refers to a quasi-credit card in which the cardholder deposits a certain amount of reserve fund as required, and when the balance of the reserve fund account is insufficient to pay, it can be overdrawn within the specified credit limit. The credit card generally refers to a credit card. From January 1, 221, the credit card overdraft interest rate will be determined by the card issuer and the cardholder through independent negotiation, and the management of the upper and lower limits of the credit card overdraft interest rate will be cancelled (the original upper limit is .7 times of the daily interest rate, and the lower limit is .7 times of the daily interest rate). On May 25th, 221, the Supreme People's Court promulgated and implemented the Provisions of the Supreme People's Court on Several Issues Concerning the Trial of Civil Disputes over Bank Cards.

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