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
Timothy Hughes
Partner, Tax, Toronto
Co-Chair
Edward Rowe
Partner, Tax, Calgary, Vancouver
Mark Brender
Partner, Tax, Montréal
David Jacyk
Partner, Tax, Vancouver
Co-Chair
Partner, Tax, Toronto
Co-Chair
Partner, Tax, Calgary, Vancouver
Partner, Tax, Montréal
Partner, Tax, Vancouver
Latest Insights
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Osler Update Aug 19, 2024
Canadian federal government releases significant draft tax legislation
On August 12, 2024, the Canadian federal government released several packages of draft legislation to implement various tax measures, update certain...
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Osler Update Jul 29, 2024
New Digital Services Tax Act raises trade retaliation risk for Canadian exporters
On June 28, 2024, Canada’s Digital Services Tax Act (the Act), introduced as part of Bill C-59, came into force. As discussed in this Update, the...
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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...
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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 and Iris Technologies regarding the respective...
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Osler’s leading tax team provides in-depth analysis of current tax issues and how they may impact your business.
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Awards and Recognition
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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.”
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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.”
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The Legal 500: Tax Law (Tier 1)
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International Tax Review
- International Tax Review: World Tax Guide: Osler earns Tier 1 ranking in Tax, Tax Controversy and Transactional Tax
- International Tax Review: Americas Tax Awards: Osler wins Canada Tax Firm of the Year (2021), Canada Tax Firm of the Year and Americas Tax Innovator of the Year Awards (2020), Canada Tax Court Firm of the Year Award (2019)
- International Tax Review, World Transfer Pricing Guide: Osler’s Tax group is ranked Tier 1 and lawyers recognized as leaders in Transfer Pricing
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Who’s Who Legal: Osler lawyers recognized in Corporate Tax
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Best Lawyers Canada: Recognized as “Law Firm of the Year” in the area of Tax Law (Canada), 2022
In the Media
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Osler News Sep 3, 2024
Osler recognized as a Tier 1 firm in ITR’s World Tax guide 2025
Osler is proud to be recognized once again by International Tax Review for its leading national Tax and Tax Controversy practice in the 2025 edition...
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Osler News Aug 12, 2024
Kurtis Bond joins Osler’s National Tax Group as a partner
Osler is pleased to welcome Kurtis Bond to the firm’s National Tax group as a partner based in Calgary. Kurtis has 20 years of experience...
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Osler News Jul 18, 2024
Mark Brender ranked in the Chambers High Net Worth Guide
Osler is proud to announce that Mark Brender was recognized in the 2024 Chambers High Net Worth Guide 2024: Canada. Chambers and Partners...
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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...
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