Why do you not want to answer this thread?(Your answer will be sent to Jeanette and Aytekin)
currently my paypal only collects the product amount i need it to add taxes... and/or service fee.
This is not included in the JotForm paypal payment field. But you can do it in the paypal account setup.
Please see this info Shipping and Tax from paypal. And the paypal support.
Inform us if you have other inquiry.