About Matthew
Matthew Williams' practice covers the full range of taxpayer representation matters. He has appeared before several courts on domestic and international matters, including the Tax Court of Canada as well as Ontario's Superior Court and Court of Appeal, the Federal Court and Federal Court of Appeal, and the Supreme Court of Canada. Williams has been named a Most Frequently Recommended Corporate Tax Litigator by Lexpert and included in its Special Edition on Canada's leading litigation lawyers. He is also recognized by the International Tax Review as a leading tax dispute resolution lawyer, listed among Best Lawyers in Canada, rated a preeminent lawyer by Martindale-Hubbell, and ranked by both Chambers Canada and Chambers Global.
Practice areas
Listing compiled from public sources in September 2026. Confirm Matthew Williams’s licence and standing in the Law Society of Ontario directory ↗