Sales Tax Calculator APIs

Get accurate US sales tax rates by street address. Rooftop-level jurisdiction lookup, address validation, and shipping taxability for e-commerce and invoicing.

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Tax Rate by Street Address

Retrieves tax rates applicable to a specific US address. Accepts street, city, state, and zip to return up-to-date local tax rates and shipping taxability in a single request.

POST /api/project/sales_tax_calculator/tax-rate-by-address