McGee had finished 2013 in good form and continued this into 2014, reaching the semi-finals of the BNP Paribas de Nouvelle-Calédonie in Nouméa, equalling his best performance at a challenger. He then competed in Australian Open qualifying but lost in his first match to eventual qualifier Jimmy Wang. McGee later recorded an impressive win over top 100 player Alex Bogomolov, Jr. at the Challenger of Dallas and then narrowly missed out on making his first ATP World Tour main draw the following week, losing in the final round of qualifying at the U.S. National Indoor Tennis Championships to David Goffin. In March, McGee played in qualifying for the BNP Paribas Open, an ATP World Tour Masters 1000 event, but was again defeated by Goffin. He then helped Ireland to a 3–2 victory over Egypt in the Davis Cup, winning both his singles rubbers in straight sets.