Generally speaking, credit card overdraft interest will be charged at the rate of 0.5 ‰ of daily interest within 15 days from the date of signing the contract or the date of posting in the bank account, and 0.5 ‰ of daily interest after 15 days, and 15 ‰ of daily interest after 30 days or when the overdraft amount exceeds the specified limit. The overdraft interest is not divided into sections, and the interest is calculated according to the highest interest rate grade or the highest overdraft amount.

Overdraft card calculation example:

Suppose your billing date is a month 17, and the due repayment date (for example, the 30th of a month) is the 7th of next month (if the month is 3 1 day, it is the 6th of next month, and the year and month are calculated accordingly).

If you spend 65,438+00,000 yuan in April, 65,438+05, and this consumption is credited to your account on the same day, the bank bookkeeping date is April, 65,438+05, because your bookkeeping date is April, 65,438+07, and the due repayment date is May 7, the longest interest-free period for this consumption is 23 days.

If you spend 65,438+00,000 yuan in April, 65,438+08, the consumption amount will be credited to your account on the same day, and the bank bookkeeping date will be April, 65,438+08. Since the consumption amount should be recorded on May 65, 438+07, there are still 50 days before the due repayment date on June 6, and the longest interest-free period of this consumption is 50.

Interest calculation of revolving credit: each consumption amount of the last statement is the interest-bearing principal, and the interest-bearing days are from the account bookkeeping date to the account repayment date; The interest rate of revolving credit shall be uniformly stipulated by the People's Bank of China, and the daily interest rate shall be 0.5 ‰, with monthly compound interest. The interest on the revolving loan will be stated in the next bill.

Also, some banks may have special regulations on this, but it is usually the case.