Charge Tax on Shipping Using Gravity Forms for WordPress

After figuring out how to charge tax for only one state , I then needed to include the shipping in the taxable amount. When I used the calculated field ( ({EMT Code Membership:30} + {Shipping:28} ) * .07 ) in Gravity Forms, the total would not refresh. I looked in the javascript for Gravity Forms and found the function gformCalculateTotalPrice($form_id). I added this … [Read more...]