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Product Sales Tax API
Our API and tax engines ensure rooftop-accurate, real-time sales tax calculations based on location. Tax data is applied in real time, with 99.999% historical uptime — ensuring the right rate is applied for every transaction. We stay on top of tax law changes, keeping you compliant.
Watch our product demo and see how TaxJar can simplify your compliance.
TaxJar’s sales tax API boasts sub-20ms response times and 99.999% historical uptime, providing instant, accurate tax data during checkout. Our API and calculation engines scale seamlessly, maintaining speed and reliability regardless of transaction volume.
We instantly apply the latest sales tax laws—state, county, city, and special district—to our platform. Stay compliant without tracking rate changes, product exemptions, or sales tax holidays.
TaxJar uses rooftop-level calculations to ensure that your customer’s address corresponds to the right rate in their jurisdiction. Our AI-powered product classification tool evaluates your products and suggests the right tax code for each one.
TaxJar offers easy-to-use integrations with platforms like Amazon, Shopify, and Woo, plus a flexible API for custom solutions .
To us, knowing we have a solution that enables us to be compliant in 23 states and generate accurate sales tax calculations is worth the price for ease and peace of mind."
Richard Beechy COO, Heartfelt Creations
I might lose sleep if we didn’t have TaxJar monitoring and ensuring compliance with 28 sets of unique and changing state tax laws."
Heidi Cooper Administrative Director, Advanced Sign LLC
TaxJar offers one platform to manage every aspect of sales tax compliance from calculations to reporting to filing. Try our sales tax compliance platform for 30 days, completely free with no obligation.