In-house tax professionals and outside counsel are increasingly involved in both shaping and realizing a corporation’s strategic business objectives. Taxation, specifically maximizing tax efficiency and minimizing potential tax risks, plays a critical role in the success of transactions that involve an acquisition, divestiture, financing, reorganization or restructuring.
Osler clients benefit from our support throughout the negotiation and deal-structuring process. Our lawyers advise corporate leadership and in-house tax professionals to help them fully understand the tax consequences of any transaction. In this environment of heightened scrutiny from tax authorities, our team also helps clients to consider and prepare for the very real possibility of an assessment.
Osler’s group of taxation experts act as a valued partner to businesses, offering their deep experience, unparalleled insight and industry-acknowledged expertise to ensure the organization’s concerns are addressed and objectives are met as effectively as possible. Working in collaboration with clients — and in conjunction with the rest of Osler’s multidisciplinary team — our tax lawyers are integral to the successful structuring and completion of transactions. Our team focuses on
- developing innovative and tax efficient transaction structures, including the form of the transaction, the type of consideration, the identification of the tax objectives driving the economics of the deal, and the most appropriate financing options
- drafting and negotiating tax aspects of transaction agreements, and undertaking related due diligence
- managing tax risks throughout the transaction and ensuring the deal does not create undue risk for the company or increase its existing risk profile
- anticipating and handling scrutiny of the transaction by tax authorities and mitigating the potential consequences of that scrutiny (such as assessments/audits and possible additional payments, disputes and litigation)
- keeping abreast of all relevant tax legislation, regulations and treaties to ensure compliance and to minimize scrutiny from tax authorities
Osler has provided taxation advice on many of the most significant transactions undertaken by Canadian corporations, partnerships, trusts and other entities within and outside Canada, and by foreign corporations, and other entities within Canada.
Key Contacts
Partner, Tax, Montréal
Partner, Tax, Toronto
Partner, Tax, Calgary
Partner, Tax, Toronto
Latest Insights
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Osler Update November 4, 2025
Federal budget briefing 2025
Budget 2025 includes modest tax proposals for businesses and individuals, plus long-awaited amendments to the transfer pricing regime.
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Osler Update April 16, 2024
Federal budget briefing 2024
Get expert insight and analysis of the tax proposals in Budget 2024, including the capital gains inclusion rate increase and other new or updated...
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Osler Update March 28, 2023
Federal budget briefing 2023
Budget 2023 proposes significant new tax measures, including amendments to the GAAR, and provides additional details for previously announced...
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Osler Update November 3, 2022
Fall Economic Statement 2022
The Fall Economic Statement updates previously announced tax measures and proposes new tax measures.
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In the Media
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Osler News November 14, 2025
Osler recognized as a Tier 1 firm in ITR’s World Tax 2026
Osler is proud to be recognized by International Tax Review for its leading national Tax and Tax Controversy practice in the 2026 edition...
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Osler News October 28, 2025
Osler’s Tax Group earns top honours at ITR Americas Tax Awards 2025
Osler named Canada Tax Disputes Firm of the Year.
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Media Mentions July 16, 2025
Canada will pay the price for cancelling its digital services tax – Bloomberg Tax
In an article written for Bloomberg Tax, partners Patrick Marley and Kaitlin Gray suggest that Canada’s eleventh-hour decision to cancel its...
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Osler News September 9, 2024
Osler receives a 2024 Turnaround/Transaction of the Year Award from the Turnaround Management Association
Osler is pleased to announce that the Xebec Adsorption Group restructuring has been selected for a 2024 Small Company Turnaround/Transaction of the...
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