How to calculate the interest-free period The interest-free period is from the bank bookkeeping date to the due repayment date. For example, the billing date of Miss Zhang's credit card is 18 every month. If she swipes her card on1October 19, it will be recorded on the bill on February 18, and she will enjoy an interest-free period of up to 50 days (February 18, the last repayment date 19-2). You can enjoy the longest interest-free repayment period by swiping your card one day after the bill date.

There are two ways of international credit card interest calculation: full interest calculation and unpaid interest calculation. At present, most banks use the method of full interest. If the cardholder fails to repay in full within the interest-free repayment period, even if it is only 1 cent, the bank will calculate the full compound interest according to the current bill, with a daily interest rate of five ten thousandths.

The calculation method of overdue fine is that if the minimum repayment amount is not paid before the due repayment date (inclusive), the overdue fine shall be paid according to a certain proportion of the minimum repayment amount, except the overdraft interest from the bookkeeping date to the repayment date. The proportion is set by the People's Bank of China, which is 5% of the unpaid minimum amount.

How to calculate the repayment and interest of multiple consumption parts?

If there are cash withdrawals and multiple purchases in one day, how to calculate interest after partial repayment? The billing date of ICBC credit cards is unified as 1 day per month, and the repayment date is 25th of each month. The repayment amount shall be recorded and repaid in the order of previous arrears, cash withdrawal amount and current arrears. In the current bill, repayment will be made according to the transaction time, and interest will be charged according to the difference if it is not enough.