Madeline Brennan KC

Roma Mitchell Chambers

193/18 Tank Street
Brisbane Qld 4000

Ph: 07 3236 0000
Mobile: 0456 559 677


Areas of Practice

  • Commercial, Competition & Consumer
  • Public / administrative
  • Tax / revenue


Madeline has over 20 years experience as a barrister, being called to the Bar on 3 June 1996. She took silk in November 2015. Madeline’s practice includes advisory work and appellate and trial advocacy in the Federal Court, the Administrative Appeals Tribunal, the Queensland Supreme Court and, for State revenue matters, the Queensland Civil and Administrative Tribunal. She seeks to provide specialized services in the areas of Taxation and Revenue Law, Administrative Law, and Competition and Consumer Law. These areas encompass a broad range of industries including those of small to medium businesses, mining and resources, health and aged care.


2019 – current

Queensland Competition Authority, Deputy Chair

2016 – 2019

Queensland Competition Authority, Member

2008 – 2016

Human Research Ethics Committee of the QIMR Berghofer Medical Research Institute, Legal Member

2007 – 2013

Barristers Services Pty Ltd, Director

2003 – 2013

Professional Conduct Committee of the Bar Association of Queensland, Member

2001 – 2013

Mater Misericordiae Health Services Brisbane Limited, Member

1998 – 2000

All Hallows’ School Council, Deputy Chair


2018 – current:

Tax Committee of the Australian Bar Association

2008 – current:

Tax Institute of Australia

1996 – current:

Bar Association of Queensland