Get accurate real-time sales tax rates by ZIP code in a simple to use API. We provide realtime rates for all (+41,000) US juristictions. Make a request by entering the ZIP or ZIP+4 and we return detailed sales tax rate information including: - Combined Rate - Local Rate - State Rate Our rates are kept up to date by the team at Sales Tax USA and our data is hosted on blazing fast cloud servers in New York City; so there won't be any downtime for critical applications using our API. Our API is designed for app developers, webdesigners and small and medium sized businesses who are looking for a cheaper alternative to TaxJar with a simple dataset that can be used to build powerful apps and websites.