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Jenny Mboutsiadis Toronto Lawyer

Jenny P. Mboutsiadis

Partner Fasken
The CRA’s aggressive approach to cracking down on tax evasion and tax avoidance is not expected to wane any time soon.
Jurisdiction Ontario, 2001
Language(s) English, Greek
Office(s) Toronto


Jenny P. Mboutsiadis is an expert tax litigator with over two decades of trial experience as lead counsel.  She has extensive successful experience arguing tax cases in the Tax Court of Canada, the Ontario Superior Court of Justice, the Federal Court, and the Federal Court of Appeal.

Jenny provides clients with exceptional knowledge on resolving tax disputes with Canadian tax authorities, from the start of a tax audit to trial.  She has expertise in corporate tax matters, including  transfer pricing, the GAAR and tax avoidance, GST/HST, and treaty interpretation.

Recently, Jenny spent eleven years as a tax litigator for the Department of Justice Canada.  Prior to that, she was a tax litigator at another leading Bay Street law firm.

Recognized for her skillful and efficient conduct of trials, Jenny regularly presents on trial advocacy, discovery skills, and effective courtroom practice.     


Client Work

Date Client

Career & Education


  • LLM, (Tax Law) Osgoode Hall Law School at York University
  • In-Depth Tax Course, Parts I, II, and III Canadian Institute of Chartered Accountants
  • Tax Law for Lawyers Canadian Bar Association
  • LLB Queen's University
  • BA (Honours) University of Toronto

Community involvement

  • Vice-Chair of the Governance, Membership, and Board Development Committee, The Hellenic Heritage Foundation
  • The Hellenic Initiative Canada, Board of Directors, Board Secretary and Chair of the Grant Applications Oversight Committee  
  • Neutral Trial Observer in Namibia, Lawyers Without Borders (U.S.A.), 2007

Memberships & Affiliations

  • Member, The Law Society of Ontario
  • Member, The Advocates' Society
    • Chair, Tax Litigation Practice Group
    • Skills Instructor
  • Member, Canadian Bar Association
  • Member, Ontario Bar Association
    • Executive Committee Member and Newsletter Committee Editor, Taxation Section (2004 – 2007)
    • Executive Committee Member, Civil Litigation Section (2004 – 2006)
    • Executive Committee Member, Young Lawyers’ Division Section (2004 – 2006)
  • Member, American Bar Association
  • Member, Canadian Tax Foundation
  • Member, International Fiscal Association
  • Member, Hellenic Canadian Lawyers’ Association
  • Rectification Committee Member, Department of Justice Canada, Tax Law Services Division (2014 – 2016)
  • Executive Committee Member, Department of Justice Canada, Tax Law Services Division, National Tax Law Services Professional Development Committee (2006 – 2008)
  • Executive Committee Member, Department of Justice Canada, Tax Law Services Division, Toronto Tax Law Services Professional Development Committee, (2006 – 2008)


Fasken Institute



Article Panama Papers: CRA getting tougher on tax evasion TAXed International
GAAR Interpreted: The General Anti-Avoidance Rule Loose-leaf up-date services, Carswell, Associate Editor
Article Tax Court: arrears interest after GAAR assessment accrue from the taxpayer’s balance-due day TAXed International

Speaking Engagements

Presenter Tax Dispute Resolution During The Covid-19 Pandemic: The CRA, DOJ, and Private Bar Discuss How To Move Forward The Advocates’ Society location location Toronto, ON
Presenter Tax Litigation: The Efficient Trial The Advocates' Society Education Centre location location Toronto, ON
Co-Presenter The CRA Audit What To Do When The CRA Comes Knocking CLHIA 2018 Tax Conference location location Quebec City, QC CLHIA 2018 Tax Conference


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