Understanding U.S. sales tax isn’t always easy for international or foreign (non-U.S.) eCommerce sellers. There is much to understand, such as what sales tax is, what the different sales tax terms mean, how sales tax is calculated but most importantly, what sales tax responsibilities an international or foreign seller that sells to U.S. customers may have. I often say that sales tax is confusing for U.S. eCommerce sellers – but it is even more confusing for out-of-country eCommerce sellers who are unfamiliar with U.S. sales tax. If you’re following my U.S. Sales Tax for Foreign Sellers posts here at SalesTaxSupport.com, you may have noticed I try to address many of the types of questions and concerns foreign sellers have about U.S. sales tax, such as how using Amazon FBA creates sales tax obligations for foreign sellers , how U.S. sales tax compares to a VAT , why U.S. tax treaties do not prevent or protect foreign sellers from being subject to the various state sales tax law