Compliance begins with precise calculations. Our API and tax calculation engines apply rooftop-accurate rates, which means that sales tax calculations are based on your customer’s state, county, city, and even district. Tax data is applied in real time — even during your busiest sales seasons — ensuring a smooth transaction for your customers. We stay abreast of tax law changes on your behalf and help you find answers to your compliance questions.
TaxJar’s sales tax API clocks in at sub-20ms with 99.99% uptime, which means that your customers instantly see accurate tax data in their checkout view. Our sales tax API and calculation engines scale seamlessly, maintaining the same speed and reliability no matter how many transactions are processed at once.
Our team constantly monitors the latest sales tax laws at the state, county, city, and special taxing district level. When tax rates change, we apply them immediately to our platform. You don’t need to keep up with all of the changes, as well as product exemptions and sales tax holidays, to remain compliant.
TaxJar uses rooftop-level calculations to ensure that your customer’s precise address corresponds to the right rate in their jurisdiction. Our AI-powered product classification tool evaluates all of your products and suggests the right tax code for each and every one.
It takes only a few minutes to connect your commerce or ERP platform to our sales tax API and calculation engine using a prebuilt integration. See how easy it is.
See all integrations
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
