Benjamin is CEO of Blue J Legal and holds the Osler Chair in Business Law at the Faculty of Law at the University of Toronto. Before joining the University of Toronto as a full-time professor in 2004, he completed graduate work in economics at the University of Toronto, graduate work in law at the Yale Law School and was a law clerk for Madam Justice Louise Arbour at the Supreme Court of Canada. He has dozens of academic publications, including several editions of a leading text on tax law, Canadian Income Tax Law. He is a past-president of the Canadian Law and Economics Association and served as Associate Dean of the Faculty of Law at the University of Toronto from 2011-2014. In 2015, Benjamin co-founded Blue J Legal with two other professors from the University of Toronto to bring artificial intelligence and machine learning to the field of tax law.