David Marschke serves as the Principal at dbm horizons, bringing a wealth of expertise in tax and legal advisory services. He adeptly advises both listed and private corporate groups, focusing on intricate tax matters and related legal concerns. His extensive experience encompasses M&A transactions, where he has supported both listed and unlisted entities, showcasing his proficiency in tax-effective business restructures and exits. David's role as an adviser extends to complex areas of trust law and the taxation of trusts, including Managed Investment Trusts, and he is well-versed in family succession issues and estate planning. In his career, David has played a vital role in representing taxpayers and their advisers during dispute matters, which includes navigating tax reviews, audits, and intricate negotiations with the Australian Taxation Office and State revenue offices. His professional journey includes notable roles such as Partner at Mills Oakley Lawyers and McCullough Robertson, Special Counsel at KPMG Australia, and Senior Manager at Ernst & Young. These positions have solidified his reputation in the industry, especially throughout the Greater Brisbane Area. David's academic foundation is built upon his studies at The University of Queensland, where he earned both a Bachelor of Laws and a Bachelor of Commerce, equipping him with a robust understanding of both legal and commercial landscapes. His distinguished career is marked by his commitment to delivering strategic and insightful legal solutions to his clients.
Principal
dbm horizons
Feb 2018 - Present • 8 years 9 months
Partner
Mills Oakley Lawyers
Oct 2015 - Feb 2018 • 2 years 4 months
Special Counsel
KPMG Australia
Jun 2014 - Oct 2015 • 1 year 4 months
Partner
McCullough Robertson
Jul 2002 - Jun 2014 • 11 years 11 months
Senior Manager
Ernst & Young
Mar 2001 - Jul 2002 • 1 year 4 months
Bachelor of Commerce (BCom)
The University of Queensland
1989 - 1993
Bachelor of Laws (LLB)
The University of Queensland
1989 - 1993
Last checked: 1 May 2026 • Checked with Queensland Law Society
