Osler, Hoskin & Harcourt LLP

International Tax Review is part of Legal Benchmarking Limited, 4 Bouverie Street, London, EC4Y 8AX

Copyright © Legal Benchmarking Limited and its affiliated companies 2025

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

Heads of tax need to push their teams forward as strategic business advisers to add value across the organisation, says Sandy Markwick
Scott Bessent reportedly felt undermined by Musk naming Gary Shapley as acting IRS commissioner; in other news, Baker Tilly will combine with a top 15 US firm
The promise of nine years’ tax certainty and a ‘rational and pragmatic’ government process makes APAs a no-brainer, Indian tax advisers tell ITR
Despite garnering significant revenues from multinationals, Italy’s digital services tax presents pressing double taxation issues, say Stefano Simontacchi and Francesco Saverio Scandone of BonelliErede
ITR’s research shows that in-house tax counsel in Asia also feel underserved by their advisers’ international networks
World Tax global head of research Jon Moore tells ITR how his team spots standout submissions, and gives early statistical insights into this year’s entries
Australia’s conservative opposition will repeal controversial tax agent reporting rules if elected in the country’s May general election
Shapley would be the fourth person to hold the job this year; in other news, UK tax advisory firm MHA raised fewer funds than expected from its London IPO
The US needs to be involved in pillar one for there to be more international acceptance of the project, Michael Masciangelo says
The UK regulator is investigating EY’s auditing of the national postal service as it relates to the high-profile Horizon scandal, which saw hundreds wrongfully convicted
Gift this article