What AvaTax solves

AvaTax automates real-time sales and use tax determination across jurisdictions, enabling accurate tax calculation at the point of transaction. It removes the need to manually maintain tax rates, rules, and sourcing logic while keeping systems aligned with continuously updated tax content.

Getting started

Explore API endpoints, SDKs, integration guides, and MCP capabilities. A 90-day free trial is available for evaluation and sandbox testing.

Core capabilities

Real-time tax determination
Calculate sales and use tax during checkout, invoicing, or order processing using jurisdiction-aware logic that reflects current tax rules and boundaries.
Compliance-ready transactions
Apply consistent tax logic across ecommerce, marketplace, POS, and ERP systems so transactions return accurate totals regardless of where they originate.
Intelligent address and jurisdiction mapping
Validate addresses and map transactions to the correct tax jurisdictions to reduce errors caused by incomplete or inaccurate location data.
Complex rule handling
Support scenarios such as product taxability differences, exemption logic, shipping rules, and temporary tax changes without building custom rule engines.

When to use AvaTax

Use AvaTax when you need to:

  • Calculate sales and use tax across multiple jurisdictions
  • Replace manual tax rate maintenance
  • Standardize tax logic across systems
  • Scale tax compliance as transaction volume grows

How it integrates

AvaTax integrates through APIs and SDKs, enabling implementation within commerce platforms, billing systems, ERPs, and custom applications. It supports both direct API integration and broader compliance workflows.