Avalara APIs simplify tax compliance

A comprehensive API approach for your tax compliance process — including calculating tax, e-invoicing, managing exempt transactions, and scheduling live returns.

Why work with Avalara?

Streamlined integration

Avalara provides a step-by-step API implementation process.

Enhanced efficiency

Get started quickly with our sample code and libraries.

Full scalability

By managing billions of API calls every year, our tax compliance cloud grows with your business.

Robust security

Avalara keeps your data safe and helps reduce risk, with a 24/7 security operations center, application security, a Security Incident Response Team (SIRT), and more. 

Related products

Our innovative, cloud-based tax calculation software applies regularly updated rates based on geolocation, item taxability, new legislation, tax regulations, and more.

Improve efficiency and accuracy with end-to-end exemption certificate management automation to boost compliance, simplify workflows, and integrate seamlessly for businesses of all sizes.

Help your company comply with global e-invoicing requirements and automate your finance processes with Avalara E-Invoicing and Live Reporting.

Integrations

Avalara easily plugs into many of the business applications you already use.

Here’s what our customers have to say

“The custom solution we developed with Avalara was an absolute game changer. It allows us to keep inventory on our platform without becoming noncompliant.”

—Brad Caproni 
Director, Global Indirect Tax, Groupon

“The API connection to Avalara makes sure we apply the right tax to each line item based on rates for the applicable jurisdictions."

—Hector Camacho
Controller, Wondersign