PDF/Printer Friendly Version The question of when income from the sale of a business is apportionable “business income” versus allocable “nonbusiness income” seems a perpetual question in state tax law. The concepts are based in U.S. constitutional law, but the decisions also involve reference to the laws of the state involved, varying as they do from state to state. In this Buzz, we discuss aspects of two 2020 decisions involving the sale of a business interest by a closely