Some states like Florida, Missouri and Mississippi and a few other don't charge taxes on shipping if it's listed as a separate line item, although Missouri recently changed something on that, not sure what it was though. But you generally get charged based on where you ship to, so you have to ship to those states to not get charged tax on shipping. If I buy from an online vendor in Florida, I pay taxes on shipping regardless. Guy in Florida buys the same thing online from the same place, it's actually cheaper by whatever taxes saved on the shipping of that item. We have a 6% state sales tax in SC, but also a 1% County Capital Project tax. Oh, and on top of that, a 1% Education Capital Improvement Tax for a total of 8%. WTF But at least they don't tax unprepared foods "that can be lawfully purchased with USDA food coupons."Allegheny County does the same thing with a 1% sales tax on top of the Pa 6%.
Now one thing that burns me with all these online venders taxing all sales is not only the goods get taxed the shipping cost get taxed. When was the last time the USPS charged you local sales tax on your stamps? Packing material used & being added by it's value maybe but I'm on the fence for something they could find a loop hole & use those cost for a tax write off.
This is why it can get confusing for e-businesses that don't have or can't afford all the whamo-dyne software tax programs and hire someone or a team of people to stay on top of all that crap. It's not insurmountable, but it's just another PITA thing you have to deal with doing e-commerce in today's tax world. States want all the tax money they can get. So they keep bending you different ways over the barrel. It's a multi-state gang-bang. 🙂