Lexpert Ranked Law Firm


Couzin Taylor LLP is a national law firm of tax lawyers allied with EY in Canada. We’ve been recognized as one of the top five tax boutiques in Canada and one of the top firms providing tax services in Canada. We provide tax planning, controversy and counsel services to a wide range of clients, including public and private companies, multinationals, banks, insurance companies, individuals, tax planners and tax transaction advisors.

We have the knowledge, experience and national presence to help you with the risks and complexities of Canada’s many tax laws.


Our tax controversy and counsel practice has an impressive record of efficiently resolving our clients’ disputes with federal and provincial tax authorities. Our litigators have appeared before all levels of Canadian courts, including the Supreme Court of Canada, Federal Court of Appeal, Federal Court Trial Division, Tax Court of Canada and various provincial Superior and Appellate Courts, as well as before the Canadian International Trade Tribunal (CITT) in international trade matters.

We assist with transfer pricing documentation, advance pricing agreements, competent authority requests, advance income tax rulings and voluntary disclosures, as well as with submissions to the Department of Finance Canada on proposed legislation. Our experienced tax advisors and advocates can advise you on a broad range of tax matters, providing you with legal opinions and risk assessments regarding your transactions and tax positions, and making submissions to and negotiating settlements with the revenue authorities.

Our customs and excise practice represents clients with respect to customs law value for duty, tariff classification, export controls/sanctions, import controls, and duty relief. We also advise on cross border VAT (GST) and transfer pricing from a customs and cross-border VAT perspective.

Couzin Taylor advises on all aspects of international trade law, including anti-dumping, countervailing, and safeguard matters before the Canada Border Services Agency (CBSA) and CITT and in other NAFTA and WTO-/GATT-related matters, including investment restrictions and the General Agreement on Trade in Services (GATS).


People make the difference in any professional services relationship. Our focused and integrated service approach is achieved by carefully selecting a team that brings in-depth industry, technical and subject matter proficiency relevant to your needs and business.

Through our alliance in Canada with EY, we augment our controversy resolution services with access to the insight of a number of former high-ranking individuals in the Canada Revenue Agency and the Department of Finance, as well as actuaries, economists, certified business valuators, scientists, engineers and industry-focused professionals.

And when your business needs go beyond borders, so do we. Our team can connect with the global network of EY tax professionals in over 700 offices in more than 150 countries — to assist you with your cross-border controversy or planning issues wherever you’re located or looking to expand.


222 Bay St, 31st Fl, Ernst & Young Twr, Box 143
Toronto, ON, Canada, M5K 1H1
Phone: (416) 943-2600
Fax: (416) 943-2700


99 Bank St, Suite 1200, Box 1505, Station B
Ottawa, ON, Canada, K1P 6B9
Phone: (613) 598-4800
Fax: (613) 598-4888


800 boul Rene-Levesque W, Bureau 1900, Terminal Twr
Montréal, QC, Canada, H3B 1X9
Phone: (514) 879-6600
Fax: (514) 879-2666


440 2nd Ave SW, Suite 1000, Ernst & Young Twr, Box 33
Calgary, AB, Canada, T2P 5E9
Phone: (403) 206-5300
Fax: (403) 206-5358


700 West Georgia St, Pacific Ctr, PO Box 10075
Vancouver, BC, Canada, V7Y 1B6
Phone: (604) 891-8400
Fax: (604) 891-8287
Couzin Taylor LLP is a Lexpert-Ranked Firm in the following practice areas
Corporate Tax Toronto, Ontario Repeatedly recommended
Corporate Tax Montréal, Québec Repeatedly recommended
Litigation - Corporate Tax Toronto, Ontario Consistently recommended
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