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Atty. David Thomas SC

Atty. David Thomas SC

David Thomas SC appears across Australia in a broad range of commercial and civil matters. He has a particular interest in class actions, regulatory, revenue and constitutional law.

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Profile Summary

About David Thomas SC at a glance

David Thomas SC is an attorney, practforg at Sixth Floor Selborne Wentworth Chambers. Recognitions include Best Lawyers in America — Class Action Litigation (2027), Best Lawyers in America — Commercial Law (2027), and Best Lawyers in America — Litigation (2027). Serands clients in Sydney and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • David Thomas SC appears across Australia in a broad range of commercial and civil matters
  • He has a particular interest in class actions, regulatory, revenue and constitutional law
  • David appears at both trial and on appeal, including in the High Court
  • Commercial and corporate law: Recent clients include HSBC on appeal in the Dick Smith litigation, IAL in the Greensill disputes, Channel Seven in claims against Cricket Australia, the Rinehart children in litigation against Gina Rinehart, NAB in proceedings concerning the Bank Bill Swap Rate and Brickworks in a landmark oppression action
  • Class actions: Clients include National Australia Bank, Westpac, RBS, Suncorp, NULIS, Star Entertainment, Multiplex and subsidiaries of BHP
  • David has been appointed amicus by the Federal Court and NSW Supreme Court to provide submissions in novel matters
  • Regulatory and civil penalty:David regularly acts for companies and individuals in proceedings brought by ASIC
  • Recent clients include Macquarie Bank, Westpac, Rio Tinto, MLC Nominees, NAB and MLC Insurance
  • David has also acted for ASIC and the ACCC respectively in High Court appeals concerning the operation of the MIS and cartel regimes
  • David represented NAB in the Banking Royal Commission
  • Revenue law: David appears for both taxpayers and the Commissioner
  • Recent matters have involved Crown, Tabcorp, Tatts and Uber
  • David has also appeared for the Commissioner in High Court appeals concerning franking credits and charitable trusts, and for high net-worth individuals in income and tax residency matters
  • Constitutional law: Notable matters include High Court challenges to the mining tax, carbon tax and the reform of parliamentary pension entitlements
  • He recently appeared in the first High Court challenge under s 90 of the Constitution since Ha
  • David has been recognized as a leading silk in a range of professional publications, including Chambers & Partners (Commercial Disputes), Doyle’s Guide (Commercial Disputes, Class Actions and Taxation), Best Lawyers in Australia (Commercial Disputes and Class Actions), Legal 500 and Lexology (formerly Who’s Who Legal)
  • David was awarded University Medals in both Law and History at the University of Sydney
  • David subsequently received a BCL (with Distinction) from the University of Oxford, while holding the Menzies Memorial Scholarship in Law
  • Prior to coming to the Bar, David was Associate to Justice Gummow at the High Court of Australia and a solicitor at Mallesons Stephen Jaques (now King & Wood Mallesons)

Frequently Asked

Common questions about David Thomas SC

Where is David Thomas SC's law office located?
David Thomas SC's law practice is located in Sydney. The firm is Sixth Floor Selborne Wentworth Chambers. You can contact the office directly through this profile page.
How can I contact David Thomas SC for a consultation?
You can contact David Thomas SC directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has David Thomas SC receiandd?
David Thomas SC's notable recognition includes: Best Lawyers in America — Class Action Litigation; Best Lawyers in America — Commercial Law; Best Lawyers in America — Litigation; Best Lawyers in America — Tax Law; Lawyer of the Year — Class Action Litigation, Sydney (Australia).

Awards

Best Lawyers in America — Class Action Litigation
- 2027
Best Lawyers in America — Commercial Law
- 2027
Best Lawyers in America — Litigation
- 2027
Best Lawyers in America — Tax Law
- 2027
Lawyer of the Year — Class Action Litigation, Sydney (Australia)
- 2026
Lawyer of the Year — Class Action Litigation, Sydney (Australia)
- 2022

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