Lexpert Ranked Law Firm

Established in 1964, Thorsteinssons LLP is Canada’s largest tax firm practising exclusively in the area of taxation. Thorsteinssons serves a broad range of Canadian and international clients, including public and private corporations, domestic and offshore trusts, high net-worth individuals, charitable organizations and all levels of foreign and domestic governments. Our practice encompasses all aspects of federal and provincial income and commodity tax matters. Our litigators practice both civil and criminal litigation and have appeared before all levels of the provincial and federal courts, including the Supreme Court of Canada. Our offices are in Toronto and Vancouver.


Corporate Tax Advice & Planning: Our Corporate Tax Advice group offers a comprehensive range of tax advisory services for all types of clients, from multinational public corporations to regional entrepreneurial enterprises. We service all sectors of the economy including telecommunications, mining, real estate development and manufacturing through a diversified and highly experienced team of dedicated tax advisors.

  • International Tax Planning
  • Cross Border Transactions
  • Inbound and Outbound Investment Planning
  • Mergers, Acquisitions and Divestitures
  • Corporate Structuring and Reorganizations
  • Corporate Finance and Treasury Operations
  • Real Estate Investment
    Partnership Structuring
  • Transfer Pricing
  • Executive Compensation

International Taxation: Thorsteinssons’ tax lawyers are active in providing key strategic tax planning advice to taxpayers for both inbound and outbound foreign direct investment. We have a very diverse client base which includes Canadian and foreign based individuals, companies, partnerships and trusts seeking to establish their presence in Canada or abroad both in terms of corporate structure and financing.

Resource Tax: Canada is known for its abundant natural resources: vast oil & gas reserves, rich mineral deposits (gold, copper, silver, coal, diamonds, potash), and expansive forests. The taxation of these important resources is an area of unique complexity. Corporations engaged in resource extraction are subject to special rules and statutes that impose additional taxes and complexity (over and above the usual tax rules that apply to all businesses).

  • Exploration Financing
  • Property Acquisitions and Divestitures
  • Corporate Structuring & Reorganizations
  • Mergers, Acquisitions & Divestitures
  • Post-Acquisition Restructuring and Integration
  • Provincial Mining Tax
  • Mine Construction Financing
  • International Tax Planning
  • Stability Agreement Negotiation

Investment Funds: Our Investment Fund group provides advice in connection with all matters of Canadian income tax law relevant to investment funds and their managers. We advise on the structuring and other taxation issues arising in connection with a broad range of funds, both domestic and international, including conventional mutual funds as well as alternative investment products such as hedge funds and private equity funds.

  • Structuring of Hedge Fund, Private Equity Fund and Other Investment Funds (Domestic and International)
  • Advising Investment Funds and Their Managers

Wealth Management: Our Wealth Management group advises high net worth individuals, families, entrepreneurs and executives with all aspects of personal tax planning.

  • High Net Worth Estate Planning
  • Reorganizations of Closely-Held Corporations
  • Tax Effective Business Succession
  • Executive Compensation
  • Trust Planning
  • Estate Freezes
  • Income Splitting
  • Private Foundations
  • Tax Shelters
  • Partnership Structuring
  • Real Estate Investment
  • Professional Incorporations
  • Immigration and Emigration
  • Pension Plans

Litigation: Our Litigation group has unparalleled experience in Canadian tax matters. We represent clients at every level and in every manner of tax dispute.

  • Income Tax Litigation
  • Investigations and Criminal Tax Representation
  • Sales Tax Litigation (PST, HST, GST)
  • Customs Litigation
  • Transfer Pricing
  • Tax Shelters
  • Judicial Review
  • Rectification and Rescission

Taxpayer Representation: Our Taxpayer Representation group has the knowledge and experience to assist our clients in resolving all manner of disputes with the Canada Revenue Agency and provincial tax authorities successfully and efficiently.

  • Managing Audits and Requests for Information
  • Administrative Dispute Resolution
  • Voluntary Disclosure
  • Tax Shelters
  • Transfer Pricing
  • Competent Authority

Sales Tax, GST and HST: Our Sales Tax group specializes in resolving GST/HST and other Canadian consumption tax issues for clients in Canada and abroad.

  • Goods and Services Tax (GST)
  • Harmonized Sales Tax (HST)
  • Provincial Sales Tax (PST)
  • Excise Tax
  • Motor Fuel Tax
  • Tobacco Tax
  • Insurance Premium Tax
  • Land Transfer and Property Taxes
  • Customs Planning

Customs & International Trade: Our Customs & International Trade group provides strategic trade and customs advice to a wide variety of national and multinational clients.

  • Customs Planning
  • Customs Litigation
  • Ascertained Forfeitures & Seizures
  • Valuation
  • Tariff Classification
  • NAFTA and Other Trade Agreements
  • Anti-dumping
  • GATT
  • Export and Import Permits

Tax-Exempt Organizations: Our Tax-Exempt Organizations group provides a full range of services to all tax exemption organizations including charitable organizations and foundations, not-for-profit organizations, municipalities and First Nations.

  • Charitable Organizations
  • Public and Private Foundations
  • Not-for-Profit Organizations
  • Municipalities
  • First Nations





595 Burrard St, Fl 27, Three Bentall Ctr, PO Box 49123
Vancouver, BC, Canada, V7X 1J2
Phone: (604) 689-1261
Fax: (604) 688-4711


181 Bay Street, Fl 33, Brookfield Place, Bay Wellington Tower
Toronto, ON, Canada, M5J 2T3
Phone: (416) 864-0829
Fax: (416) 864-1106

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Mentioned in Lexpert Publications

  • Foreign companies acquiring assets in Canada can create a foreign entity in a low-tax jurisdiction to purchase the Canadian company
  • As if it somehow anticipated the Panama Papers leak the following month, the Liberal government announced in March that it would increase its budget allotment for the chronically underfunded Canada ...
Thorsteinssons LLP is a Lexpert-Ranked Firm in the following practice areas
Corporate Tax Vancouver, British Columbia Most Frequently Recommended
Corporate Tax Toronto, Ontario Consistently Recommended
Litigation - Corporate Tax Vancouver, British Columbia Most Frequently Recommended
Litigation - Corporate Tax Toronto, Ontario Most Frequently Recommended
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