From the second day after the billing date, swiping the card is the most cost-effective.

The billing date is 1, which is the billing date of the credit card; From the second day after the billing date, swiping the card is the most cost-effective, because the bank credit card center clearly stipulates that the consumption generated on the second day after the billing date is included in the next bill, so the consumption on the second day is the most cost-effective.

The bill date refers to the date when the bank sends the bill to the credit card holder.