These databases contain the sales and use tax rates by zip code for either an individual state or for all states. Detailed information includes the zip code (non-unique), the state abbreviation, the county name, the city name, the state sales tax rate, the state use tax rate, the county sales tax rate, the county use tax rate, the city sales tax rate, the city use tax rate, the total sales tax rate, the total use tax rate, whether shipping is taxable, and whether shipping and handling is taxable. The database is in the format of a tab delimited text file. This purchase includes monthly updates for a period of 12 months.