API solutions for end-to-end tax compliance
Calculate sales & sellers use tax, consumer use, and value-added tax (VAT)
Calculate transactional taxes with rooftop-level accuracy and real-time product taxability information using our AvaTax RESTful API, or SOAP API, which include class wrappers (adapters) for a variety of languages to assist in calling the web service. Get started with the AvaTax API now.
Fees and taxes for telecommunications
The Avalara AvaTax for Communications API helps you quickly determine taxes for telecommunication services, as well as VoIP, internet services, satellite TV, and other communications services. Learn more about the Communications Tax API
Excise fees and taxes for fuels
The Excise Tax API allows you to determine taxes for transactions involving bulk motor fuels, petroleum products, and natural gas for thousands of jurisdictions in the U.S. and Canada. The SOAP API provides platform-independent access to Avalara AvaTax Excise, and can be used independently of other Avalara APIs. Learn more about the Excise Tax API..