Paul Ryan



Mail :
Phone : (514) 866-3514, ext.204
Direct : (514) 866-3510

LinkedIn vCard


Eve Boulanger


Mr. Paul Ryan has over 30 years of experience in tax litigation and represents a multitude of clients in contact with tax authorities (corporate and personal income tax, GST, QST and other taxes, voluntary disclosures, tax fraud, tax bankruptcy and proposals, customs duties, etc.).

Mr. Ryan has built a reputation as a seasoned negotiator and litigator with a synthetic mind that allows him to get to the point and avoid unnecessary debate.

In recent years, Mr. Ryan has represented hundreds of taxpayers who have repatriated funds held abroad with his assistance, by making a voluntary disclosure to the Canada Revenue Agency and Revenue Quebec.

Mr. Ryan is also an accredited Mediator with the Bar of Québec and his vast experience, knowledge of taxation and conciliatory skills allow him to guide parties in conflict towards original and practical choices to settle their disputes.

Mr. Ryan also assists Quebec-based companies applying to the Autorité des Marchés Financiers (AMF – Financial Market Authority) for the required authorization to request and get certain public contracts in Quebec, pursuant to the Act respecting public bodies contracts (RLRQ c. C-65.1).

Mr. Ryan is a frequent speaker for various organizations, including the Association de planification fiscale et financière (APFF – Fiscal and Financial Planning Association), Insight, The Canadian Institute, the Bar of Quebec, the Canadian Bar Association and MacKenzie Financial. He also teaches at the University of Montréal, as part of the Master’s Degree of Laws in Taxation option, which is offered jointly by the Faculty of Law and HEC Montreal. Mr. Ryan has also published numerous reference texts in the field of taxation.

Mr. Ryan has always been actively involved in the legal and tax community and has chaired several committees, including the Liaison Committee between the Bar of Montreal and the Tax Court of Canada and the APFF’s Voluntary Disclosures Committee. Mr. Ryan is also a member of several other APFF Committees, as well as the Committee on the Economy and Public Finance of the Board of Trade of Metropolitan Montreal.

Mr. Ryan is the author of the book Quand le Fisc attaque (When Fisc Attacks), published in 2012 by Éditions La Presse.


University of Montreal (L.L.L., 1981)


Quebec, 1982


  • « Conformité internationale et divulgation volontaire » – APFF, Congrès 2017
  • « Revenu Québec : du vrai changement à l’horizon? » – – Magazine financier Conseiller – 27 octobre 2016
  • « PME et professionnels incorporés : taux d’impôt et rémunération des actionnaires » – APFF, Congrès 2016
  • « La vie après l’affaire GPBR » – APFF, Congrès 2015


  • « L’impact de la fiscalité sur la pratique quotidienne », Barreau du Québec, June 6th, 2019
  • « Le point sur l’actualité en litige fiscal et en administration fiscale », Conférence des CPA de la Montérégie, March 27th, 2019
  • « La fiscalité des avocats dans un paysage en pleine évolution », Formation du Barreau du Québec, Montreal, February 15th and March 14th, 2019


  • December 2nd, 2016 – Le remboursement de Gilles Vaillancourt décortiqué
  • May 12th, 2016 – Revenu Québec gagne sa cause contre Uber
  • April 5th, 2016 – Panama Papers


Recent Developments in Tax Litigation

On January 8, 2020, Mtre Paul Ryan delivered a lecture to the D’Amico Family Wealth Management Group BMO Nesbitt Burns on Recent Developments in Tax Litigation. During this lecture, Mtre Ryan spoke of the new Quebec sanctions for GAAR and shams and the new Quebec...

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Mise à jour en administration fiscale

Le 9 octobre 2019, Me Paul Ryan donnait une conférence sur l’administration fiscale au Congrès annuel de l’Association de planification fiscale et financière, à Montréal. Les participants à cette conférence ont mis à jour leurs connaissances au sujet du nouveau...

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The Impact of Taxation on Daily Practice

On June 6th 2019, Mtre Paul Ryan was the main organizer, leader of the activity and speaker for a training day on taxation given by the Barreau du Québec. Mtre Ryan brought together a panel of seasoned speakers who addressed the key issues that practitioners encounter...

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Découvrez notre groupe en litige fiscal