Resources Blog Nexus
by TaxJar October 20, 2025
When the South Dakota v. Wayfair case was decided, the US Supreme Court allowed states to require more online sellers to collect sales tax.
Many sellers were concerned that due to this decision they may now have sales tax obligations in new states. To help, we created the first free and totally automated Sales & Transactions Checker.
The Sales & Transactions checker allows you to find out if you are required to collect sales tax in minutes, for free.
If you already use TaxJar, just login to your TaxJar account and click “Run the Checker” on your dashboard. And that’s it! We’ll tell you where (or if) your sales meet the requirements for economic nexus or notice & report laws.
If you are not a TaxJar customer, the Sales & Transactions Checker is still absolutely free for a limited time.
It's time to solve your tax complexity
Talk to a TaxJar expert about automating your sales tax compliance.