You will be charged on the date you enter your credit card and accept the subscription. For monthly renewal, you will then be charged each month on the same date of your subscription. For example, if your monthly subscription is made on the 2nd of the month, it will always be billed on the 2nd. If a month doesn’t have an anchor day, the subscription will be billed on the last day of the month. For example, a subscription starting on January 31 bills on February 28 (or February 29 in a leap year), then March 31, April 30, and so on.