By Marc Finer (July 25, 2018, 1:44 PM EDT) -- In the highly anticipated decision, South Dakota v. Wayfair Inc.,[1] the United States Supreme Court overturned the long-standing "physical presence" standard, which previously served as a prerequisite to the collection of state sales tax by out-of-state retailers. In Wayfair, the court analyzed the constitutionality of a South Dakota "economic nexus" law that required out-of-state retailers to collect and remit sales tax "as if the seller had a physical presence in the state" if the retailer, on an annual basis, delivered more than $100,000 of goods or services into South Dakota or engaged in 200 or more separate transactions for the delivery of goods or services into South Dakota....