This is the basic operation for finding sales tax rates in the United States. Given a US zip code and a tax type, it returns sales tax information for that zip code. Several pieces of information are returned, starting with basic information about the area. Zip code, city, county, FIPS, and state are returned here. 
Six tax rates are also returned. An overall rate that represents the combined sales tax rate for that area and the five tax rates it is based on. These five rates are the state rate, the city rate, the county rate, the county district rate and the city district rate. Finally, a field representing any tax exemptions that might be available. Exemptions are normally kept at the state level and can consist of any combination of Labor, Freight and Services. By examining the WSDL, you may see that the service can return multiple tax rates (multiple TaxInfo results). This is because at the zip code level, it is possible that there may be additional matches found. Zip codes can border multiple cities and counties and each might have a different tax rate. It is important to consider all of the results since any of them may be the correct one.
 

URL Endpoints

GetTaxInfoByZip_V2 Inputs

Name Type Values Description
PostalCode String Varies The zip code associated with the desired tax rates
TaxType String sales / use Selects the type of tax to look for, for the given area.
LicenseKey String Varies Your license key to use the service. 
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GetTaxInfoByZip_V2 Outputs

Name Type Values Description
Zip String Varies The given zip code
City String Varies The city associated with the given zip code
County String Varies The county associated with the given zip code
CountyFIPS String Three digit number The FIPS code associated with the zip code
StateName String Varies The state associated with the give zip code
StateAbbreviation String Two letter state code The common two letter state abbreviation
TotalTaxRate String Decimal digit The decimal representation of the overall tax rate
TotalTaxExempt String Varies The exemptions available for that area. Combinations of Labor/Freight/Services
StateRate String Decimal digit The decimal representation of the state’s tax rate
CityRate String Decimal digit The decimal representation of the city’s tax rate
CountyRate String Decimal digit The decimal representation of the county’s tax rate
CountyDistrictRate String Decimal digit The decimal representation of any special district tax rates for the county
CityDistrictRate String Decimal digit The decimal representation of any special district tax rates for the city
Error String Varies The error object containing information about the error returned.

References