Credit card overdraft interest shall be charged at the rate of five ten thousandths of daily interest within 15 days from the date of signing the contract or the date of bank entry (inclusive), and at the rate of five ten thousandths of daily interest after 15 days, and at the rate of fifteen thousandths of daily interest after 30 days or when the overdraft amount exceeds the prescribed 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.
Take a credit card spending of 50,000 yuan as an example. If it takes 45 days from the billing date to the repayment date, the cardholder will repay 40,000 yuan on the repayment date, and the remaining 10000 yuan will not be repaid on time. To hold a card of China Construction Bank or China Merchants Bank, you need to pay interest at a daily rate of 0.5 ‰ based on 50,000 yuan, and you need to pay overdraft interest 1 125 yuan within 45 days.
If you hold ICBC's credit card, you only need to calculate the overdraft interest for the unpaid 1 000 yuan, and the overdraft interest to be paid within 45 days is 225 yuan, a difference of 5 times. If you can't repay on time, it's not because you can't repay, but because you remember wrong, which leads to a small number of mistakes, then the difference is even greater.