The Supreme Court made 2018 an incredibly exciting year for state and local taxes. For almost three decades, sales taxes from interstate commerce were controlled by one U.S. Supreme Court ruling: Quill v. North Dakota. In this case, the Court concluded that an out-of-state seller must have physical presence in a state before sales tax collection laws could be imposed. However, on June 21, 2018, that all changed. The U.S. Supreme Court overturned the Quill precedent when it ruled in South Dakota v. Wayfair that physical presence was no longer a requirement.