An index of sales tax certified software providers list for each state and their contact information.

An index of sales tax contacts for each state and their contact information.

Definitions that are generally used by sales & use tax administrators and industry tax payers.

A list of the states with a link to their sales permit and license applications along with information on any documented fee they have.

A general overview and history of state sales and use tax, as well as the determination, collection, and filing process that goes along with it.