Offer Subscription With One-Off Add-On Product Options with Gravity Forms

Problem

You want to create a subscription for one fee but also provide one-off add-ons or product purchases that should not be included in the subscription total. But you can only use a single payment feed per submission.

Here is the exact request from the Gravity Forms user:

Trying to setup a form that allows a user to purchase via Stripe a subscription product and then also give them the option to purchase one off ‘add on’ products. Since only one Stripe feed is allowed to be processed, how could this be achieved? Any clever workarounds?

Originally posted on Gravity Forms Community Forum

Disclaimer: While this is possible with Gravity Forms and the Stripe Add-On, it cannot be done with all payment add-ons. For example, the Square Add-On does not have a setup fee option in the feed settings.

Solution

For a simple solution to offering a subscription and one-time payment in the same form submission please watch this video. I’ve also documented the process below.

We will be using Stripe in this walkthrough, but you can set this up with any payment add-on that supports subscription and setup fees in the feed settings.

Step One: Creating Your Form

Add a Product field (any product type would work) and configure pricing
Add a standard Checkbox or Multiple Choice field and configure choices
Add another Product field switch to the Calculation field type and add the formula
Add a Total field
Add the Stripe Card field

Step Two: Creating the Stripe Feed

Select Subscription for the Transaction Type
For Recurring Amount, select your Subscription Product field
Set your desired Billing Cycle
Check Enable to activate the Setup Fee option
Select the Product Calculation field for your setup fee price
Complete the feed setup as desired

The Wrap Up

Combining subscriptions with one-off add-ons in Gravity Forms may seem tricky due to the single Stripe feed limit—but with the right setup using the setup fee option, it’s entirely doable.