Master multichannel sales tax: our guide helps retailers stay compliant as they grow.

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Get accurate sales tax calculations in real time

Our API and tax engines ensure rooftop-accurate, real-time sales tax calculations based on location. Tax data is applied in real time — even during your busiest sales seasons — ensuring a smooth transaction for your customers. We stay on top of tax law changes, keeping you compliant.


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Apply sales tax instantly even as you grow

TaxJar’s sales tax API boasts sub-20ms response times and 99.99% uptime, providing instant, accurate tax data during checkout. Our API and calculation engines scale seamlessly, maintaining speed and reliability regardless of transaction volume.

Stay on top of tax changes with zero effort

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.

Calculate the exact rate for every sale

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.

Integrate TaxJar with your e-commerce or ERP platform

TaxJar offers easy-to-use integrations with platforms like Amazon, Shopify, and Woo, plus a flexible API for custom solutions.

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TaxJar guarantees that all sales tax calculations are accurate.

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Try TaxJar for free

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.