Go to the Form Editor’s Payments section of your form, add the payment gateway you want to use, and tick the Use recurrent payment option
Next, set a regular basis when the client is billed (per days, weeks, months and years). That’s all that differentiates a subscription from a one-time payment. Payment gateways that support recurrent payment will have this option displayed in the integration box.
For PayPal and PayPal Pro you can also add the number of recurring payment cycles. This means you will limit the number of times the recurrent payment is applied.
Not all payment gateways have recurring payments. Here is our Payment Gateways Comparison Chart for more details.