Thomas McDonnell, Q.C.
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Thomas McDonnell, Q.C. is associated with the firm’s Toronto office, as counsel.
During a distinguished career in taxation spanning some 40 years, Thomas has counseled private and public sector clients on a wide range of matters involving domestic and international tax issues.
He holds a Bachelor of Arts degree (Economics) from the University of Toronto and a Bachelor of Law degree from Osgoode Hall Law School. A member of the Ontario Bar since 1967, he was appointed Queen’s Counsel in 1984. He was a full time member of the teaching faculty at the University of Toronto from 1974 to 1977.
He served as Director of the Canadian Tax Foundation from June 1, 1994 to December 31, 1995. Thomas was the chairman of the Working Group on the Corporate Minimum Tax (Ontario), which was established in 1991. He has consulted on tax matters with the federal departments of Finance, Justice and Revenue. He presently serves on the boards of directors of a number of Canadian companies.
Thomas is a member of the Editorial Review Board of the Canadian Tax Foundation and the editor of their newsletter “Taxation for the Owner/Manager of Private Businesses”. He has served as a contributing editor for Prentice-Hall’s “Income Taxation in Canada”. He is perhaps best known to members of the tax community as a past editor of the “Current Cases” feature in the Canadian Tax Journal, a position he held for 17 years. Most recently, he is a co-author of “Scientific Research and Experimental Development: a Practical Guide” (CCH Canadian, Toronto, Second Edition 2001).
He has lectured on tax matters for the Canadian Institute of Chartered Accountants, the Canadian Bar Association, the Canadian Tax Foundation, the International Bar Association, the Law Society of Upper Canada, the Canada Revenue Agency, and a number of law schools and private continuing education organizations. His articles on taxation have been published by the Canadian Tax Foundation, The International Business Lawyer, The Australian Tax Journal, private educational associations and newspapers.