These firms demonstrated expertise in navigating an evolving legal landscape
Canadian Lawyer has released its 2025-26 rankings of the top tax law boutiques in Canada, recognizing firms that have demonstrated excellence in specialized tax law services.
This bi-annual ranking highlights firms that provide tailored solutions for clients while navigating the increasing complexity of tax regulations and international compliance standards.
The recognized firms have set themselves apart by transforming increasingly complex regulations into clear, actionable advice. As new tax rules impact a broad range of clients, the demand for straightforward guidance continues to rise. These firms have successfully navigated compliance, risk mitigation, and strategic tax planning challenges, showcasing their expertise in an evolving legal landscape.
Counter Tax Litigators LLP earned recognition for its success in helping clients overturn Canada Revenue Agency (CRA) assessments. A five-time recipient of the top tax law firm distinction, the firm is known for its data-driven approach to litigation and commitment to delivering strategic, results-oriented representation. The firm stands out in high-stakes cases due to its custom reporting tools and ability to navigate complex tax litigation.
"Our competitive advantage comes from our people's expertise and applying that expertise within the framework we've created to deliver superior tax results," says tax litigation partner Natalie Worsfold. "The structured discipline and accountability are the DNA of our firm's culture."
Beitel Tax Law has quickly established itself as a leading tax boutique in Canada, earning recognition for its distinctive, people-centred approach. Since rebranding, the firm has experienced rapid growth, emphasizing emotional skills and strong client relationships as core aspects of its practice. By fostering a collaborative culture and prioritizing client satisfaction, Beitel Tax Law has successfully differentiated itself in a competitive market. The firm's commitment to innovation and adaptability has contributed to its reputation for delivering effective, tailored tax solutions.
"What makes our culture different is that we have very small egos and a strong desire to collaborate," says managing director Jeremie Beitel. "It's about working together as a full team rather than competing internally or being siloed."
Thorsteinssons LLP, which has offices in Vancouver and Toronto, continues to be a leader in complex tax matters. The firm has maintained its position as a one-stop shop for corporate tax, cross-border transactions, and tax dispute resolution, earning widespread recognition for its expertise.
"Sometimes the most important thing is providing good service to other professionals so they can speak highly of us. That's been consistent throughout our history," says managing partner Jim Murdoch.
Other firms recognized in the rankings included Barsalou Lawson Rheault LLP, Felesky Flynn LLP, Legacy Tax + Trust Lawyers, Millar Kreklewetz LLP, Moodys Tax Law, Morris Kepes Winters LLP, and Rosen & Associates Tax Law.
Canadian Lawyer congratulates the top tax law boutiques for 2025–26. See more information about the winners.
