In October 1745, Smart was elected Praelector of Philosophy, which paid one pound a year, and made one of three Keepers of the Common Chest. The next year, on 11 February 1746, he became a Master of Arts and was later elected on 10 October 1746, to Praelector of Philosophy, Praelector of Rhetoric, and Keeper of the Common Chest. However, he had run up more debt of over twice his annual income, and he was not re-elected in 1747 to the Praelectorship and was denied his control over the Common Chest accounts. However, he was made a "Preacher before the Mayor of Cambridge" at the college under the title "Concionatori Coram Praetore oppidano", and his modest living during this year allowed him to regain Praelectorship in Philosophy along with being made a catechist, which suggests that he was ordained in the Anglican church.