South Dakota v. Wayfair, Inc.
South Dakota v. Wayfair, Inc., 585 U.S. 162 (2018), was a United States Supreme Court case that held by a 5–4 majority that states may charge tax on purchases made from out-of-state sellers even if the seller does not have a physical presence in the taxing state.
Source: Wikipedia — South Dakota v. Wayfair, Inc. (CC BY-SA 4.0)