Full interest calculation means, for example, if you spend 5000 yuan, the final repayment amount is 4999.99, and there is a gap of 1 cent. The bank will also calculate the interest from the day you spend 5000 yuan in full. This is called full interest. At present, 99% of bank credit cards are in this way.

The only bank that uses differential interest is Industrial and Commercial Bank of China, which calculates interest based on the part you have not returned, not the full amount.

Calculation method of full interest

For example, if the cardholder's monthly billing date is 25th, the due repayment date is next month 13, and the product of RMB 10000 was purchased on June 5438+10/0, then in the statement of June 5438+10/25, If the cardholder repays 10000 yuan in full on February 25th, the circulating interest in the statement on February 25th is 0.

If the cardholder repays 1 000 yuan according to the minimum repayment amount on February 25+03, the circulating interest in the statement on February 25 is 1 0,000 yuan ×0.05%×34 days (1000 ~ 65438,000,000).

If the cardholder underpays 9999 yuan and 1 yuan, the circulating interest will still be as high as 170.006 yuan according to the full interest calculation method.