The longest interest-free repayment period of credit cards is Bank of Communications and ICBC, and the 25th day after the bill date is the repayment date. The specific interest-free period should be calculated according to the consumption date and billing date.

First, credit cards are generally consumed on the bill date, with the shortest interest-free period;

2. You can enjoy the longest interest-free period if you spend on the day after the bill date;

For example, the billing date of the Bank of Communications credit card is the 20th of each month, and the repayment date is 15 per month. If the bill is consumed on July 20th, then the interest-free period is the shortest if it is repaid before August 15.

If it is spent on July 2 1 day, it belongs to the bill of August 20, and should be repaid before September 15, so you can enjoy the longest interest-free period.