Once you have your Stripe account activated and have added your client’s card details, you can then setup recurring card payments for your clients.
Head to your 'Clients' tab, then select the 'Finances' tab on your client’s profile.
Select the 'Stripe' tab
Select the '+ New Recurring 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.