David Jacyk

David is the Head of Osler’s tax litigation practice in Vancouver. A career litigator on high-profile matters, David has appeared as lead counsel at all levels of Canadian courts, including the Tax Court of Canada, the B.C. Supreme Court, 3 different appellate courts and the Supreme Court of Canada. He has extensive experience in litigating tax cases for the Crown and is well-versed on controversies affecting corporate taxpayers.

Prior to joining Osler, David practised as Crown counsel in Canada and New Zealand for more than 23 years, including serving as General Counsel of the Department of Justice of Canada (Vancouver) for approximately 10 years. More recently, David was legal counsel  for the Crown Law Office and Inland Revenue Department in New Zealand (2015-2017), where he focused on revenue and public law, and appeared before the Taxation Review Authority, the High Court, and the New Zealand Court of Appeal.

Throughout his career, David has argued a wide variety of complex cases involving tax litigation, civil litigation, customs and anti-dumping, bankruptcy and insolvency, judicial review, constitutional and other matters. He is a frequent speaker and author on a range of tax issues, and received the Canadian Tax Foundation’s Douglas J. Sherbaniuk Distinguished Writing Award in 2013 for his seminal article “The Jurisdiction of the Tax Court: A Tax Practitioner’s Guide to the Jurisdictional Galaxy of Constitutional Challenges.”

Outside of his practice, David has contributed to the legal community through volunteer work, including acting as a judge at student moot competitions. He has also participated as a mentor in the Canadian Bar Association’s Student Mentorship Program and was a Council Member at a Vancouver strata corp. from 2011-2015.


Awards and Recognition

  • Best Lawyers in Canada: Recognized in Tax Law
  • The Canadian Legal Lexpert Directory: Recognized in Litigation – Corporate Tax; Canada corporate tax litigation lawyers
  • Canadian Tax Foundation: Recipient of Douglas J. Sherbaniuk Distinguished Writing Award
  • Department of Justice: Appointed as Counsel on the Supreme Court of Canada’s national counsel list; Recipient of Department of Justice award for team excellence; Recipient of Department of Justice award for individual excellence for outstanding performance; Recipient of Department of Justice award for outstanding contribution

Community Involvement

  • Member of the organizing Committee for Canadian Tax Foundation’s 70th Annual Tax Conference (2018).
  • Volunteer judge for the Peter Burns Mock Trial Competitions, University of British Columbia.
  • Volunteer judge for the “Barry Sullivan” Moot Cup Competition, Canadian Bar Association.
  • Adjunct Professor for the UBC Intro to Tax course for a single (three-month) term in 2012.

Credentials

Education

  • University of British Columbia, LL.M.
  • University of Manitoba, B.A.
  • University of Manitoba, LL.B.

Languages

  • English
  • French

Professional Affiliations

  • Mentor, Canadian Bar Association’s Student Mentorship Program, 2010-2012
  • Council Member, Vancouver Strata Corp. LMS1491, 2011-2015