Sovos Docs

Introduction to the Sovos Tax Determination REST API

An overview of the Tax Determination REST API environments, authentication, and related documentation.

About
This document gives an overview of Tax Determination's REST API services and the guidelines for using them.
Related documentation
To learn more about Tax Determination's features, read the Tax Determination documentation.
Environments
API
UAT
https://uat-api-determination.sovos.com
Production
https://api-determination.sovos.com
Tax Determination
UAT
https://uat-s1.sovos.com
Production
https://s1.sovos.com
Status page
Visit the Sovos Status Page for real-time updates on the operational status and availability of the Tax Determination REST API integration and to review the history of any outages. You can view the status directly on the page or subscribe to email alerts.
Authentication
Your Sovos Professional Services team or Partner Manager will give you an HMAC key and a username for authentication.
API testing
A Postman collection has been shared with you to view sample requests. Enter your HMAC key, username, and password to make API calls. A password is required in the request, but it can be set to any value because the HMAC key is used for authentication.