Avalara AvaTax for VAT API

Avalara AvaTax for VAT helps customers accurately calculate value-added tax (VAT) based on up-to-date tax data. Ensure your business is compliant with current and future EU & UK directives and legislation.

AvaTax helps businesses of all sizes achieve compliance with sales, excise, VAT, GST, and other transactional taxes for millions of products and services across thousands of tax jurisdictions. AvaTax for VAT supports connectivity to custom applications with a well-documented and robust developer toolkit.

Navigate Legislative Changes

AvaTax for VAT is up to date with the latest legislative requirements for the European Union including Deemed Supplier.

Calculation Accuracy

Ensure that your company calculates and collects accurate taxes from customers at point-of-sale.

Flexible Customization

AvaTax for VAT API allows for custom tax rules as well as flexible fields enabling businesses to develop a custom solution to meet their business needs.

Apply Special Tax Rates

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

VAT Calc for ERP
VAT Calc for ERP
This guide describes the steps you should follow in order to integrate Avalara AvaTax for VAT into your ERP system.
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Companion Guide
Enhanced VAT Calculations
This guide describes effort that AvaTax is making to its current integration to include the enhanced EU VAT capabilities for 2020 and 2021.
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Ready to get started?
Explore our quick start guides for retail, ecommerce, manufacturing software, and ERP solutions. Make live API calls directly from our documentation.
Get an API key
To access the AvaTax service and obtain an API key, please contact your Avalara account manager or email us.
Get Support
Check out our Developer Support page to review additional documentation, submit a case, view webinars, and more.