Sales tax
A sales tax is a tax paid to a governing body for the sales of certain goods and services. Usually laws allow (or require) the seller to collect funds for the tax from the consumer at the point of purchase. When a tax on goods or services is paid to a governing body directly by a consumer, it is usually called a use tax. Often laws provide for the exemption of certain goods or services from sales and use tax.
Types
Conventional or retail sales tax is levied on the sale of a good to its final end user and is charged every time that item is sold retail. Sales to businesses that later resell the goods are not charged the tax. A purchaser not an end user is usually issued a "resale certificate" by the taxing authority and required to provide the certificate (or its ID number) to a seller at the point of purchase, along with a statement that the item is for resale. The tax is otherwise charged on each item sold to purchasers without such a certificate and who are under the jurisdiction of the taxing authority.