The credit card is charged when the user first sign up for the plan, it is then charged on a monthly or yearly period depending on the subscription from when the user signs up. Invoices will be sent out at the end of the billing cycle.
A subscription’s billing date is determined by:
- When the subscription is created
- Its billing interval (monthly or yearly base)
A customer subscribed to a monthly plan on the 2nd will always be billed on the 2nd. A different customer subscribed to that same plan starting on the 15th will always be billed on the 15th.