Sales tax economic nexus by state.

A directory of the states that are origin based sales tax vs destination sales tax.

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

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

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

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.

Sales & use tax abbreviations and acronyms that are commonly used by sales & use tax administrators and industry taxpayers.

A directory of the states that have their sales and use tax forms and reports listed.

State Sales Tax Holidays

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