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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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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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    The tax calculation is wrong on the Payment Field

    Asked by celinalinley on February 22, 2017 at 05:40 AM

    Your system is inaccurately calculating basic math for tax. In my screenshot the subtotsl is $65. and my tax rate is 8%. 8% of 65 is 5.20 not $6.00. The calculation behind your code is wrong its not giving the right answer. See screenshot attached.THIS IS A HUGE PROBLEM. 

    Page URL:

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    JotForm Support

    Answered by Jim_R on February 22, 2017 at 07:36 AM

    I'm afraid you accidentally sent us an incorrect screenshot so I checked the actual form https://www.jotform.com/70520866195157 and did exactly as how you described it.

    Here's how it looked like from my perspective:

    Can you please check it again? The computation should work properly. If you're still seeing it differently, send us a screenshot by following the guide I'm linking below. Don't reply via email, open your thread by clicking this link, then post your reply and screenshot from there.

    Related thread: How-to-add-screenshots-images-to-questions-in-support-forum 

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    Answered by exoteric on March 21, 2017 at 06:55 AM

    I am also experiencing the same issue with incorrect tax calculation from the payment widget after a discount/coupon code is applied. Instead of calculating tax at the discounted price the tax calculation is being calculated at full price i.e. ( Let's say I have a $25.00 off discount code/coupon and am applying a discount to an item priced at $100.  The tax rate is 9%. it's calculating the tax at full price which in this case is $100.00 and not $75.00)
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    JotForm Support

    Answered by Jim_R on March 21, 2017 at 08:28 AM

    @exoteric - To give way to the OP of this thread, I moved your post to a separate thread https://www.jotform.com/answers/1097487

    We'll have it addressed there shortly.