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This is a photo of Stephanie Dewey




Contact by email at [email protected]

t. 416-601-4300


Bar Admission

Ontario, 2012

Possessing broad technical expertise and experience with complex cross-border issues, Stephanie deftly navigates the intricacies of Canada’s tax system.

Stephanie is a partner in McCarthy Tétrault’s National Tax Group and is based in the firm’s Toronto office. Her practice focuses on corporate income tax planning, including advising on the tax aspects of cross-border and domestic M&A and corporate reorganizations, private equity transactions and investment fund structuring, and on international tax matters.

Stephanie is known for providing clients with novel solutions to their most difficult issues. With deep technical expertise and experience advising multinational enterprises and private equity funds on their most complex Canadian tax matters, Stephanie’s experience crosses many industries, including technology, media and telecommunications, energy, mining and infrastructure, and consumer goods and retail.

Stephanie is a thought leader in the tax profession, frequently presenting and authoring articles on changes to the tax landscape and what business leaders can do to navigate them. Stephanie’s recent contributions include co-authoring an article on the mandatory disclosure rules for the Canadian Tax Foundation’s Perspectives on Tax Law & Policy publication, and presenting to the International Fiscal Association’s Young IFA Network on the foreign affiliate dumping rules and in a joint presentation with the Hong Kong branch on international tax issues.

Stephanie received her JD from the University of Toronto, and an LLM in Taxation Law from Osgoode Hall Law School. Stephanie has also completed CPA Canada’s In-Depth Tax Program.

Publications and Presentations

  • What You Missed While You Were Away – 2023 Tax Developments (Ontario Bar Association – OBA Taxation Law Program), September 2023

  • CRA Policy Should Not be a Cure for Overbroad Legislation (Canadian Tax Foundation – Perspectives on Tax Law & Policy, Volume 4, No. 3), September 2023

  • Canada and Hong Kong – International Tax Systems & GAAR (International Fiscal Association – YIN Event), July 2023

  • YIN Presentation – Foreign Affiliate Dumping Rules (International Fiscal Association – IFA Canada Tax Conference), May 2022

  • Tax School – International Tax Planning Day (Tax Executives Institute – Houston Chapter), October 2021

  • COST Canadian Tax Webinar for U.S. Companies (Council on State Taxation), September 2021

  • Transfer Pricing Trends and Developments in Canada (Chambers and Partners - Transfer Pricing Global Practice Guide), April 2021 (Co-Author)

  • How will the MLI Change the International Tax Landscape? (Canadian Tax Foundation – Toronto Young Practitioners), February 2020

  • Case Update (Tax Executives Institute - Litigation Day), September 2018

  • Cross-Border Employee Mobility (Bloomberg BNA - International Tax Conference), August 2016