One Zip Code could return more than one result so make sure to select the cell with the correct Zip Code, County, and State. After you have selected the customers location all sales tax information is displayed. The information displayed includes postal code(zip code), city, county, state, tax sales, tax use, TXB Service, TXB Freight, state sales tax, state use tax, city sales tax, city use tax, city tax code, county sales tax, county use tax, county tax code, district sales tax, district use tax.