About MGTBA Services

At MGTBA Services, we offer professional accounting solutions tailored to your needs. Our team is dedicated to helping you with professional advice and guidance to manage your tax, finances and wealth effectively. Under the direction of Managing Director Mark Gillis (Accountant) whose wealth of knowledge and experience is assisted by a casual and logical approach, MGTBA Services aims to offer Tax, Bookkeeping and Accounting services at affordable rates whist also taking the time to understand a client's financial aims and requirements in an everchanging environment. Mark Gillis has a Bachelor of Commerce (Accounting) and is a Registered Tax Agent with the Tax Practitioners Board and has been so for over 25 years. He has been associated with a number of businesses in the Wollongong and Shellharbour community over this time working with various Partners and Stakeholders throughout Australia. Mark has extensive life experiences which round out with his professional development

Services Offered

2026 Tax Time Bookings are now available. Please ensure that you have all required information needed for your tax return by your appointment date as the tax office may not have all necessary information on your file until August 2026. Please contact us if in doubt prior to your appointment.