Adjust the billing date of card A or card B to around the 24th, so that the billing dates of the three cards are basically evenly distributed throughout the month. Every time you use a card, choose the one with the billing date that just passed. , which can make the interest-free period the longest.

1. Set the credit card statement date before the date of large expenses. There are many large and small expenses, and it is difficult to predict them all. However, some large expenses need to be planned in advance, such as tuition fees, vacations, buying a house or a car, etc. You can set the billing date before these large expenses to enjoy a longer interest-free period.

2. Set the credit card statement date before the regular consumption date. If you are sure that you will have regular consumption on a certain day of the month, you can set the billing date before this day, so that you can enjoy the longest interest-free period. For example, if Xiao Wang needs to pay the rent of 3,000 yuan by credit card on the 10th of every month, Xiao Wang can set the bill date before the 10th.

3. Set the credit card statement date before birthdays and special holidays. There will be many discounts on birthdays or special holidays. If you set the credit card statement date before, you can not only enjoy the discounts, but also enjoy a longer interest-free period.

: A credit card, also called a credit card, is a credit certificate issued by a commercial bank or credit card company to consumers with qualified credit. It takes the form of a card with the name of the issuing bank, validity period, number, cardholder name and other contents printed on the front, and a magnetic stripe and signature strip on the back. Consumers holding credit cards can shop or consume at specially appointed commercial service departments, and then the bank will make settlements with merchants and cardholders. Cardholders can overdraft within the prescribed limit.

After experiencing the financial crisis and the ups and downs of the domestic economy, my country's credit card market rebounded in 2016. By the end of 2016, the total number of domestic credit cards issued had exceeded 590 million. In 2016, the national credit card consumption transaction amount reached 741.81 trillion, an increase of 10.75%, and the proportion of credit card consumption in the total retail sales of consumer goods continues to increase.

According to the "2013-2017 China Credit Card Industry In-depth Research and Investment Strategic Planning Analysis Report", since 2010, in order to curb the rapid rise in asset prices and control inflation, the Chinese government has implemented a sound monetary policy. And adopted a series of moderate tightening measures, indicating that macro-prudential and strengthened capital supervision have become the core of China's banking industry supervision. Various tightening money supply operations and capital constraint policies have an impact on the liquidity level, credit lending rhythm and structure of Chinese commercial banks. All had a profound impact. The analysis believes that the evolution of the industry structure has further optimized and diversified the product portfolio, and also increased the research and development of new industry standards and mobile payments; credit penetration has deepened; and the installment business has developed in depth.