Massachusetts’ Economic Nexus Regulation to be Enforced Retroactively; DOR Says its Regulation Not Impacted by Wayfair

In the days immediately following the U.S. Supreme Court’s decision in South Dakota V. Wayfair, many states quickly issued “Wayfair” statements. While some states applauded the decision, others affirmed their “economic nexus” rules adopted prior to Wayfair, and others noted they would review their rules in light of the decision and issue additional guidance at a later […]