Firm Profile

Header Image for Thorsteinssons LLP

Thorsteinssons LLP

Firm Details

Thorsteinssons LLP was founded in Vancouver in 1964 by P.N. (Pat) Thorsteinsson. In 1990, the firm expanded by opening a Toronto office in order to better serve its national client base. We were then, and continue to be, Canada’s only national tax law firm.

Tax is an area of great complexity. By restricting our practice to tax, we are better able to deliver the level of skill demanded by our clients. Our practice encompasses all aspects of taxation including tax planning and restructuring, tax litigation at all court levels, and advice on compliance obligations.  

We provide tax advice of the highest quality to clients around the world and are known for our skillful work in highly complex matters. Our close client relationships afford us the in-depth knowledge of client businesses that is necessary to deliver the advice that our clients require. Our goal throughout is to provide our clients with valuable solutions in a timely and efficient manner.  

Working together, we share an uncompromising commitment to excellence in everything we do.


Top Listed State Awards

  • Top Listed in British Columbia, Canada in Tax Law with 7 lawyers

Top Listed City Awards

  • Top Listed in Vancouver in Tax Law with 7 lawyers

Firm Practice Areas

  • Corporate
  • Litigation
  • Tax Law
  • Trusts and Estates

Firm News & Media

Featured Publications

Office Locations



British Columbia

British Columbia

Vancouver, BC

Three Bentall Centre, 27th Floor

595 Burrard Street

P.O. Box 49123

Vancouver, BC V7X 1J2



Get Directions



Toronto, ON

Bay Wellington Tower, Brookfield Place, 33rd Floor

181 Bay Street

P.O. Box 786

Toronto, ON M5J 2T3



Get Directions