Tax Legal Services · Primary-source case analysis

South Dakota v. Wayfair: Physical Presence Is Not Required for Sales-Tax Nexus

By Aneeta Mishra and Timothy Chan

Published April 15, 2026

Wayfair reshaped sales-tax collection for remote sellers by ending the constitutional rule that required an in-state physical presence.

South Dakota’s economic-nexus law

South Dakota required an out-of-state seller to collect and remit sales tax if, in the prior or current calendar year, it delivered more than $100,000 of goods or services into the state or engaged in 200 or more separate transactions. The state sought a declaration that the law applied to large online retailers with no physical presence.

Why Quill’s rule failed

The Court concluded that Quill and Bellas Hess had created an unsound and incorrect physical-presence rule. Modern commerce allows a business to have extensive economic and virtual contacts with a state without property or employees there, and the old rule distorted markets and disadvantaged local businesses.

Substantial nexus without physical presence

The sellers’ volume of business under South Dakota’s thresholds supplied a substantial nexus with the state. The Court also noted features reducing undue burdens: a safe harbor for limited activity, no retroactive application, and South Dakota’s participation in a system simplifying sales-tax administration.

Remand preserved other questions

The Court vacated the state judgment and remanded for consideration of any remaining Commerce Clause issues. Wayfair eliminated the categorical physical-presence barrier; it did not approve every state collection regime regardless of burden, discrimination, or nexus.

Key takeaways

• Physical presence is not constitutionally required for sales-tax collection duties.
• Economic and virtual contacts can create substantial nexus.
• Thresholds, retroactivity, and administrative burden remain important.
• Multistate sellers must evaluate each jurisdiction’s current economic-nexus rules.