Use this code recipe in combination with the Register Helper add on to have checkout fields that adjust membership price, either for the initial payment, recurring payments, or both.

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Why would I want to do this?

There are several use-cases that need this type of option that change’s your level’s price. Some ideas, to name a few:

• An association that publishes a quarterly magazine. Allow members to optionally pay extra to receive a physical copy via mail.
• A food-box or equivalent that has a frequency or quality selection, such as daily or 3 times a week OR good, better, and best.
• A health coach who wants to add an optional “weekly call” with the client.
• An education or online learning site that allows you to select one or more additional courses in your membership.