1) Create a new payment form (or find the form you would like to edit.)

2) Find the Frequency section and choose Recurring from the drop down menu.

3) Next, choose Set Recurring Options.

4) Choose the recurring period you prefer. It will default to Monthly, but there are other built in options or you can make a Custom one.

5) Choose Set Fixed Day of Week/Month from the drop down menu.

6) Choose the day that you would like the payer to be charged.

7) Once you're finished, click the Update Form button.