Mark graduated B.A. (Hons.) Business Management from the University of Malta in 1986. He is a Fellow of the Malta Institute of Accountants and a Certified Public Accountant. In December 1993 Mark was appointed Deputy Head of the International Tax Unit within Malta’s Inland Revenue Department. The Unit was responsible for all tax matters relating to international business and the financial services sector within the context of Malta’s launch of comprehensive financial services legislation in 1994. In October 2000 Mark took on the position of Director and Head of the Tax Department at Deloitte & Touche Malta, responsible for all tax-related services to the firm’s national clients, subsequent to which in January 2004 he progressed to Partner at Deloitte Member Firm in Malta taking on the role of leader of the team providing indirect tax advisory and compliance services, a position he held till his retirement in May 2017.