What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.

At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.

We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.


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    Form using Stripe and calculation of admin fee

    Asked by Adrian Schulz on November 05, 2013 at 02:43 PM

    How could I program a form where the client completing the online form can enter their desired payment amount, and then the form would visibly add a 5% admin fee and grand total. Then the grand total would be charged using Stripe as the processor? Pleasea advise.

    online form grand total
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    JotForm Support

    Answered by ardy0689 on November 05, 2013 at 05:54 PM

    Hello. I tried doing a work around for this but I could not come to a working solution. This can not be done on our Stripe Payment integration or from any Payment Integration in that matter.

    The only viable solution I could think of is to embed your form using the full source code. Then you need to devise a Javascript or jQuery that multiplies the entered amount from the textbox by 5% and add it to become the grand total after 2 seconds or so after it was inputted by the client.

    If you need further help, please do not hesitate to ask. Thank you