Overview

John M. Campbell is counsel in Gowling WLG's Toronto office and a member of its National Tax Group. He was called to the Ontario bar in 1983 and has more than 40 years of experience advising on domestic and international income-tax matters. His practice includes corporate reorganizations, mergers and acquisitions, international tax planning and business transactions. He also represents clients in disputes with federal and provincial tax authorities and has appeared before the Tax Court of Canada, the Federal Court of Appeal and Ontario courts in reassessment, notice-of-objection and related tax matters. Gowling lists Tax and Tax Dispute Resolution as his areas of focus and notes that he writes and speaks on developments in tax law. An October 2024 legal-industry report records Gowling's addition of Campbell from Miller Thomson, supporting the transition from the historical target firm.

Practice Areas

• Tax
• Tax Dispute Resolution

Bar Information

Called to the bar: 1983 (ON)