Service

Tax

Our team develops sophisticated solutions to our clients’ most complex and important taxation issues.

Osler’s Tax Group is consistently recognized as a leading provider of tax law services in Canada and is ranked Band 1 by Chambers Canada, one of the leading legal directories in the world. From our offices across Canada, our tax lawyers operate as an integrated unit and in partnership with our clients to develop sophisticated solutions to our clients’ most complex and important taxation issues.

With close to 60 tax professionals, we offer our clients expert advice on a broad range of tax matters of importance to their business interests. In addition, we are pleased to share with our clients and others the benefit of our extensive experience through our Osler Updates, seminars, webinars and other client tailored programs.

Osler is a long-time sponsor of the Canadian Tax Foundation (CTF) the International Fiscal Association (IFA), and the Tax Executives Institute (TEI) in support of the professional needs of the in-house tax community and as leading sources of insight on Canadian corporate tax issues.  


Key Contacts

Co-Chair

Patrick Marley

Partner, Tax, Toronto

Co-Chair

Edward Rowe

Partner, Tax, Calgary

Mark Brender

Partner, Tax, Montréal

David Jacyk

Partner, Tax, Vancouver


Representative Work


Latest Insights

  • Osler Update Jul 4, 2024

    Canada’s digital services tax enters into force

    The Digital Services Tax Act (DSTA) entered into force on June 28, 2024, pursuant to an Order in Council (OIC) of that date. The DSTA was enacted by P...

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    Canada’s digital services tax enters into force
  • Osler Update Jul 2, 2024

    Dow Chemical and Iris Technologies: Supreme Court rules on jurisdictional issues in tax matters

    In this Update: On June 28, 2024, the Supreme Court released its decisions in Dow Chemical Canada ULC v. The King, 2024 SCC 23 (Dow Chemical...

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    Dow Chemical and Iris Technologies: Supreme Court rules on jurisdictional issues in tax matters
  • Osler Update Jun 21, 2024

    Major Canadian tax bills enacted into law

    Two major Canadian tax bills were enacted into law before Parliament adjourned for the summer. The Fall Economic Statement Implementation Act, 2023 (F...

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    Major Canadian tax bills enacted into law
  • Osler Update Jun 19, 2024

    Canadian capital gains tax increase to take effect June 25

    On June 10, 2024, the Government of Canada tabled a Notice of Ways and Means Motion (NWMM) in Parliament that proposes to increase the capital gains i...

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    Canadian capital gains tax increase to take effect June 25
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Awards and Recognition

  • Chambers Canada: Canada’s Leading Lawyers for Business: Recognized in Tax (Band 1)
    • Osler team brings a wealth of experience, and is methodical and strategic with their approach to complex and sophisticated matters.”
    • The depth of the team is unbelievable.”
    • Osler is technically strong. They are also commercial and will take a view supported by reasoned and principled judgement in areas with no clear answer. I am very happy with their advice.”
  • Chambers Global: The World’s Leading Lawyers for Business: Recognized in Tax (Band 1)
    • They have an exceptionally strong team that works together seamlessly – their experience with tax and tax litigation is the best in Canada.”
  • The Legal 500: Tax Law (Tier 1)
  • International Tax Review
  • Who’s Who Legal: Osler lawyers recognized in Corporate Tax
  • Best Lawyers Canada: Recognized as “Law Firm of the Year” in the area of Tax Law (Canada), 2022

In the Media

  • Media Mentions Apr 19, 2024

    Tax lawyers sound alarm about enhanced CRA powers in federal budget – Law360

    Pooja Mihailovich speaks with Law360 about a Budget 2024 proposal to allow the CRA to charge taxpayers $50 per day for not complying with a request fo...

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  • Media Mentions Dec 13, 2023

    Lawyers exempted from mandatory disclosure regime until Charter challenge decided – Advisor.ca

    An interim injunction exempting legal professionals from CRA’s new mandatory disclosure regime is closely being followed.

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  • Media Mentions Dec 8, 2023

    New penalty remains as GAAR legislation tabled – Investment Executive

    Speaking to Investment Executive, Pooja Mihailovich, partner, Tax, discusses the differences between the federal budget implementation bill (Bill C-59...

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  • Media Mentions Nov 20, 2023

    Amendments to GAAR: The new presumption and penalty exception – Canadian Tax Focus

    Two new key features of GAAR introduced by the federal government in draft legislation in August are potentially here to stay.

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