Spend Time on Your Business. Not Sales Tax.

Let TaxJar automate your sales tax calculations, reporting, and filings in minutes.

Spend Time on Your Business Not Sales Tax
Sales Tax Blog

Sales Tax Blog - The latest sales tax news

TaxJar’s sales tax experts track every change to sales tax laws and monitor potential changes for the eCommerce industry. Visit our sales tax blog and subscribe to receive the latest news in sales tax.

One click integration with


Get started in minutes


Easily connect to the places where you sell

  • Merchants: Simple one-click connection to your marketplace or cart. Say goodbye to spreadsheets and messy CSVs.
  • Developers: View our demo and get your API token instantly! Use our docs to send your first API call for your custom cart.
Economic Nexus Checker Connect
Economic Nexus Checker Start

TaxJar instantly prepares your state return-ready reports

  • Merchants: Use TaxJar Reports to finish your returns in minutes, or choose to automate your filing with AutoFile.
  • Developers: Share TaxJar Reports with your clients to help them easily remit their sales tax payments to the state.

Enroll in AutoFile.
You’re done!

  • Merchants & Developers: Choose to automate your filings with AutoFile and let TaxJar handle filing.
  • Never miss a due date again. On-time, every time.
Economic Nexus Checker Results
Sales Tax Support

Need help along the way?
Just ask!

We're proud to offer world-class customer support for all customers. When you partner with TaxJar, you’ll gain access to an experienced team of professionals who understand the ins and outs of sales tax.

Visit support
Learn more about how TaxJar can save you hours on sales tax.
Request a demo

Are you a developer looking for accurate sales tax calculations?

TaxJar SmartCalcs comes with detailed documentation and open-source clients on GitHub for languages such as Ruby, PHP, Node, and .NET with more on the way. All you need is an API key to get started.

  • Accurate Sales Tax Rates and Calculations
  • Shipping and Product-Level Taxability
  • International Support
  • Easy to Use and Developer Friendly

Get started or  Learn more
TaxJar Guarantee
const Taxjar = require('taxjar'); const client = new Taxjar({ apiKey: '365ab65aa4d2200ce859fd64d4a762ff' }); // Get rates for a location (ZIP+4 w/ Street Address for Rooftop Accuracy) const rates = await client.ratesForLocation('05495-2086', { street: '312 Hurricane Lane', city: 'Williston', state: 'VT', country: 'US' }); // Click 'run'to see a rooftop accurate sales tax calculation

Join more than 20,000 businesses and developers who trust TaxJar each month:

TaxJar Customers