Osler, Hoskin & Harcourt LLP

International Tax Review is part of Legal Benchmarking Limited, 1-2 Paris Garden, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

Osler, Hoskin & Harcourt LLP

Image Toronto

1 First Canadian Place

PO Box 50

Toronto, Ontario, Canada

M5X 1B8

Tel: +416 362 2111

Fax: +416 862 6666

www.osler.com

Ottawa

Suite 1500

50 O'Connor Street

Ottawa, Ontario, Canada

K1P 6L2

Tel: +613 235 7234

Fax: +613 235 2867

Montréal

1000 de La Gauchetière Street West

Suite 2100

Montréal, Québec, Canada

H3B 4W5

Tel: +514 904 8100

Fax: +514 904 8101

Calgary

Suite 1900

Toronto Dominion Square

333-7th Avenue S.W.

Calgary, Alberta, Canada

T2P 2Z1

Tel: +403 260 7000

Fax: +403 260 7024

New York

1221 Avenue of the Americas, 26th floor

New York, New York,  US

10020-1089

Tel: +212 867 5800

Fax: +212 867 5802

Osler, Hoskin & Harcourt LLP is one of Canada's top law firms for tax according to international and domestic research studies. It is ranked in the top-tier of leading firms and placed five lawyers as leading individuals in various categories including tax controversy, transfer pricing, capital markets, cross-border structuring and M&A. Other international and domestic surveys laud the group of 60 specialists. Our tax group plays an integral role in our M&A practice, often developing novel transaction structures. We are at the heart of most innovative international transactions, whether representing a Canadian multinational with worldwide interests, or the Canadian operation of an international parent. In both instances, tax strategy spans jurisdictions and needs to respond to global–and local–objectives. Our offices are located in Toronto, Montréal, Ottawa, Calgary and New York. Visit our web site at www.osler.com.

more across site & shared bottom lb ros

More from across our site

Overall revenues for the combined UK and Swiss firm inched up 2% to £3.6 billion despite a ‘challenging market’
In the first of a two-part series, experts from Khaitan & Co dissect a highly anticipated Indian Supreme Court ruling that marks a decisive shift in India’s international tax jurisprudence
The OECD profile signals Brazil is no longer a jurisdiction where TP can be treated as a mechanical compliance exercise, one expert suggests, though another highlights 'significant concerns'
Libya’s often-overlooked stamp duty can halt payments and freeze contracts, making this quiet tax a decisive hurdle for foreign investors to clear, writes Salaheddin El Busefi
Eugena Cerny shares hard-earned lessons from tax automation projects and explains how to navigate internal roadblocks and miscommunications
The Clifford Chance and Hyatt cases collectively confirm a fundamental principle of international tax law: permanent establishment is a concept based on physical and territorial presence
Australian government minister Andrew Leigh reflects on the fallout of the scandal three years on and looks ahead to regulatory changes
The US president’s threats expose how one superpower can subjugate other countries using tariffs as an economic weapon
The US president has softened his stance on tariffs over Greenland; in other news, a partner from Osborne Clarke has won a High Court appeal against the Solicitors Regulation Authority
Emmanuel Manda tells ITR about early morning boxing, working on Zambia’s only refinery, and what makes tax cool
Gift this article