Taxnexus User Docs

Taxnexus API Explained

Use Taxnexus API to get accurate tax ratings on invoices in supported jurisdictions and tax domains.

Taxnexus API is a RESTful, HTTPS-based API that uses JSON strings and inline parameters for communicating with an API consumer.


Taxnexus API has resources and methods that:

  • Determine tax ratings algorithmically using Taxnexus Codes
  • Store tax ratings safely online
  • Post transactions into an online financial accounting system
  • Read tax analytics
  • File regulatory documents via online systems or PDF generation