Description
Key Features of AVATax API
Accurate Tax Calculations:
- Automatically calculates sales tax, use tax, and VAT based on the customer’s location (state, county, city, and ZIP code).
- Supports real-time tax rate updates to ensure compliance with changing tax laws.
Multi-State and International Tax Support:
- Covers all U.S. states, including local jurisdictions.
- Supports international VAT calculations for global businesses.
Product Taxability:
- Determines taxability based on product type (e.g., clothing, electronics, groceries) and jurisdiction-specific rules.
Exemption Certificate Management:
- Validates tax exemption certificates for tax-free purchases.
Seamless Integration:
- RESTful API with easy-to-use endpoints for quick integration into websites, apps, and ERP systems.
- Supports JSON and XML formats for requests and responses.
Compliance and Reporting:
- Generates detailed tax reports for auditing and filing purposes.
- Ensures compliance with state and local tax regulations, including SST (Streamlined Sales Tax).
Scalability:
- Handles high-volume transactions, making it ideal for businesses of all sizes.
How AVATax API Works
Input Data:
- Provide the customer’s shipping address (or billing address) and product details (e.g., SKU, category, price).
API Request:
- Send a request to the AVATax API endpoint with the required parameters.
API Response:
- Receive a response with the calculated tax amount, jurisdiction details, and tax breakdown.
Example Use Case
E-commerce Website:
- A customer in California purchases a $100 electronic item.
- The AVATax API calculates the total tax based on the state, county, and city tax rates.
- The website displays the total amount, including tax, to the customer.


