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

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  • Profile Image

    How can I put a charge in the payment area that is impossible to unselect and varies depends on what else is selected?

    Asked by jnoreman on November 05, 2015 at 04:06 PM

    I need to add 8% processing fee to whatever someone selects. So if they select a $200. item, I want to be able to add $16 to that as a "processing fee" field. But it must not variable, depending on the dollar total of items the user selects. And it must not be avoidable / unselectable.


    Please advise ASAP.

    Page URL:

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    JotForm Support

    Answered by Kevin_G on November 05, 2015 at 05:53 PM


    Thank you for contacting us.

    You can add a tax value to the payment in your form, please , refer to this guide for further help  :


    If you need more help, feel free to contact us.


  • Profile Image

    Answered by jnoreman on November 05, 2015 at 06:44 PM
    NO, no, no.
    Although this is like tax in how it works, I do NOT want to infer sales tax into this non-taxable item.
    I think I figured it out. Please see what I’ve done.
  • Profile Image

    Answered by grade4pagasa on November 05, 2015 at 07:28 PM

    Hi @jnoreman.

    I think what JotForm Support Kevin_G meant was you can use the Tax Wizard tool to create the 8% Online Processing Fee.

    I cloned your form and recreated your product listing since I couldn't remove the original field for Online Processing which was 0%.  

    I then included a new Online Processing fee of 8% and it fixed the problem. 

    Here's the link of the cloned form.

    Hope this helps.

     - Randy, fellow JotForm user. 


    Original Form



    Modified (Cloned) Form

  • Profile Image
    JotForm Support

    Answered by Kevin_G on November 05, 2015 at 08:38 PM

    Randy thanks for your help, you are right, the Tax Wizard Tool could be used to add the 8% to the payment amount.

    Another option would be add a Calculation Wizard, take the amount to pay and then make the calculation to add the 8%.

    Both options should work fine.