For credit card non-cash transactions, the interest-free repayment period is from the bank bookkeeping date to the due repayment date. During this period, as long as the current payable amount on the current statement is fully paid off, any non-cash transactions prepaid by the bank to the store do not need to pay interest.

Suppose your bank's arrival date is 10 every month. Swipe your card once on May 9, and you must pay back the money within 20 or 25 days after May 10 (20 or 25 days depends on different banks, such as Bank of Communications, China Construction Bank and China CITIC Bank, the longest is 50 days).

Credit card is a non-cash transaction payment method and a micro-credit payment tool provided by banks to users. Credit cards are divided into credit cards and quasi-credit cards, which provide settlement services, facilitate shopping and consumption, and enhance security; Simplify the collection procedure and save social labor; Promote commodity sales and stimulate social demand.