The calculation method of the minimum credit card repayment interest is based on the interest calculated separately for each purchase. For example, if you spend 100 yuan on December 10, 50 yuan on the 12th, and 5,000 yuan on the 13th, and then only pay the minimum payment of 515 yuan on January 28 (usually 10 yuan of the total consumption plus other expenses ), then, starting from the 14th, the bank will use the unpaid 365 yuan (i.e. 515 yuan minus 10 of 100 50 5000) as the basis for calculating interest, based on the daily interest rate of 0.05%. This means that for every new purchase, interest will accumulate from the day of purchase.

The minimum repayment policy allows cardholders to make repayments when they have difficulty, but it should be noted that if you only repay the minimum repayment amount, you will no longer enjoy the interest-free period, and interest will be calculated from the date of consumption. The calculation formula of the minimum repayment amount includes 10% of the consumption balance (including cash withdrawals), interest, installment consumption balance, other payable fees, and the unpaid portion of the minimum repayment amount in the previous period. The specific value will be clearly listed in the monthly bill.

Refer to the credit card business announcement of the Postal Savings Bank of China. The calculation of the minimum repayment amount is a combination of many factors, including but not limited to 10% of the consumption amount, interest, etc. Make sure you understand and manage your repayment plan to avoid additional interest payments.