Sales tax laws for marketplace facilitators are quickly covering the United States, holding online marketplaces responsible for calculating, collecting, and remitting sales tax for transactions made on their site.
These new laws affect all the major players in e-Commerce: Amazon, eBay, Etsy, WalMart, and more. In fact, the laws potentially affect other third party services you use to sell your digital products or physical goods in the US. And ultimately, they affect your business, too.
Source Quaderno
