Hi! I am currently assisting a developer in configuring a shop. I have no experience or knowledge in whatever language this software uses, keep that in mind.
I have an 8.375% tax class assigned to every product in a specific category, and the tax works fine in the shopping cart and checkout. That is, until shipping is calculated, then it is set to $0.00 from then on in the order summary. Doesn't seem to matter what kind of shipping calculation is used. Free Shipping, Order Weight, and UPS' calculation all have the same effect. The end result is no tax charge for the buyer.
I won't be able to contact the developer for quite some time at the moment, so I can't edit code yet, sorry. if anyone has any idea how this can be corrected/circumvented, that would be appreciated. Thanks!