Head to your 'Clients' tab, then select the 'Edit' button next to your client’s name
Select the 'Credit/Debit Card' tab
Select the 'Recurring Card Payments' tab, then '+ Add Recurring Card Payment':
Fill in the details of how the recurring payment should be setup:
Note: the payments will be taken on the first day of each period displayed.
How to process a once-off Stripe payment from my client’s card?
How to setup a recurring Stripe card payment linked to a Membership
How to view, change, skip or cancel Stripe recurring card payments