When purchasing (or upgrading) a plan we always display the "Next Renewal On" date within the Payment Details. This is the next time your credit card will be charged once you've successfully completed your purchase.
Here's some real-world examples:
Example 1
If you choose our Monthly Plus Plan, your credit card will be charged that day, and the same day every month following. So for instance, if you sign up on April 12 for our Monthly Plus Plan, you will be charged on that day, then again on May 12 and so on.
Example 2
If you choose our Yearly Plus Plan, your credit card will be charged that day and the same day every year following. So for instance, if you sign up on April 12, 2017 for our Yearly Plus Plan, you will be charged on that day and then again on April 12, 2018 and so on.
Note: All of our subscriptions automatically renew, unless you cancel within the Subscription area of your profile.