10%. Sales tax is collected by the seller at the time of sale. Use tax is self assessed by a buyer who has not paid sales tax on a taxable purchase. Unlike value added tax, sales tax is imposed only once, at the retail level, on any particular goods. Nearly all jurisdictions provide numerous categories of goods and services that are exempt from sales tax, or taxed at a reduced rate. Purchase of goods for further manufacture or for resale is uniformly exempt from sales tax. Most jurisdictions exempt food sold in grocery stores, prescription medications, and many agricultural supplies. Generally cash discounts, including coupons, are not included in the price used in computing tax. Sales taxes, including those imposed by local governments, are generally administered at the state level. States imposing sales tax require retail sellers to register with the state, collect tax from customers, file returns, and remit the tax to the state. Procedural rules vary widely. Sellers generally must collect tax from in-state purchasers unless the purchaser provides an exemption certificate. Most states allow or require electronic remittance of tax to the state. States are prohibited from requiring out of state sellers to collect tax unless the seller has some minimal connection with the state. Excise taxes Excise taxes may be imposed on the sales price of goods or on a per unit or other basis, in theory to discourage consumption of the taxed goods or services. Excise tax may be required to be paid by the manufacturer at wholesale sale, or may be collected from the customer at retail sale. Excise taxes are imposed at the federal and state levels on a variety of goods, including alcohol, tobacco, tires, gasoline, diesel fuel, coal, firearms, telephone service, air transportation, unregistered bonds, and many other goods and services. Some jurisdictions require that tax stamps be affixed to goods to demonstrate payment of the tax. Property taxes Most jurisdictions below the state level in the United States impose a tax on interests in real property (land, buildings, and permanent improvements). Some jurisdictions also tax some types of business personal property. Rules vary widely by jurisdiction. Many overlapping jurisdictions (counties, cities, school districts) may have authority to tax the same property. Few states impose a tax on the value of property. Property tax is based on fair market value of the subject property. The amount of tax is determined annually