U.S. Sales Tax
In the United States, sales tax at the federal level does not exist. At the state level, all (including District of Columbia, Puerto Rico, and Guam) but five states do not have statewide sales tax. These are Alaska, Delaware, Montana, New Hampshire, and Oregon. States that impose a sales tax have different rates, and even within states, local or city sales taxes can come into play. Unlike VAT (which is not imposed in the U.S.), sales tax is only enforced on retail purchases; most transactions of goods or services between businesses are not subject to sales tax.