Avalara AvaTax API

Sales tax calculation for financial applications

Avalara AvaTax provides cloud-based sales and use tax calculation with comprehensive, regularly updated tax rates pushed to your financial systems.

Calculate more accurate rates

Sales and use tax rates are complex and vary across tax jurisdictions. AvaTax applies rates based on geolocation, not just ZIP code.

Validate addresses

Catch and correct keystroke errors to avoid incorrect tax rates and ensure invoices and packages get to where they need to go.

Manage exempt sales

Collect and apply exemption certificates at the point of sale, regardless of whether your customers purchase in person, over the phone, or online.

Apply special tax rates

AvaTax adjusts calculations for a variety of circumstances, including product-specific tax rates, sales tax holidays, shipping and handling rules, and more.

Integration Guide
Ecommerce
One solution to calculate rates, prepare returns, and manage documents, no matter your size or industry.
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