the interest rate for credit card interest is usually five ten thousandths of the bank's interest rate, or it can be ten thousand yuan and five yuan a day. It seems low, but it is by no means a decimal.

the daily interest rate of .5*36=.18, that is, the annual interest rate is 18%, which is almost the same as that of private usury.

usually, banks will compound the interest on credit cards on a monthly basis, that is, add up the principal interest of last month and then calculate the interest of next month. In this way, if the monthly interest rate is converted to .18/12 = .15, that is, 1.5%

, then if the credit card is 1, yuan in arrears for one year,

the difference between 1, * (1+.15) 12 = 11,956.18 yuan

The bank will also have a late payment fee. The most important thing is to charge 5% of the unpaid part of the minimum repayment amount.

For example, if the minimum repayment amount is 1, but only 2

, then (1-2) * 5% = 4 yuan

The bank can also cheat you from the interest-bearing time. For example, if you owe a credit card 1, yuan after swiping your card on November 1, and the billing date is the 1th, then it will be fine if you pay it back on the 11th. If you pay it back on the 11th, it will not only be counted as the excess interest for this day, but will be counted from the 1st of swiping your card, that is, the interest for 1 days.