Nexus Archives

Your sales tax questions, answered live Oct. 7. Register for TaxJar's 20-minute Q&A.

Sales tax by state: Economic nexus laws

by TaxJar September 12, 2026

Most online sellers are by now familiar with the term “sales tax nexus” as defined in the Quill v. North Dakota Supreme Court case. Long story short: retailers must have some kind of presence (like location…

Sales Tax Fundamentals

Sales tax by state: Economic nexus laws

What is sales tax nexus?

Marketplace facilitator nexus criteria in every state

What is a nexus study, and does your business need one?

Do sales made through a marketplace facilitator count towards my nexus threshold?