Sylvain Thibeault is a Principal in Ryan’s Montreal office, where he specializes in providing sales and use tax consulting services to clients across a wide range of industries. He advises organizations on complex indirect tax matters using a tailored, client-specific approach designed to improve understanding of tax rules, minimize risk, and maximize recoveries. Sylvain also represents clients before tax authorities, guiding them through audits, disputes, and resolution processes.
With deep experience in indirect tax consulting and a strong academic background, Sylvain brings a rigorous and practical perspective to client service. In addition to his advisory work, he serves as Lead of the Graduate Microprogram in Commodity Taxes and as a Lecturer at Université de Sherbrooke. Sylvain is a frequent speaker for Ryan clients and professional organizations and has authored numerous technical publications, including co-authoring a reference guide on the application of the goods and service tax (GST) and Quebec sales tax (QST) for public health and social services institutions in the Province of Quebec. His work reflects a strong commitment to technical excellence, education, and thought leadership in Canadian commodity taxation.
Education and Qualifications
Master of Taxation, École de gestion, Université de Sherbrooke
Bachelor of Laws, Université Laval
Experience and Achievements
Principal, Indirect Tax, Ryan, Montreal office
Advises clients on sales tax compliance, planning, and dispute resolution
Represents clients before tax authorities
Lead, Graduate Microprogram in Commodity Taxes, École de gestion, Université de Sherbrooke
Lecturer, École de gestion, Université de Sherbrooke
Partner, Indirect Tax, national accounting firm
Senior Manager, Indirect Tax, national accounting firm
Manager, Indirect Tax, national accounting firm
Member, Association de planification fiscale et financière
Member, Barreau du Québec (Quebec’s bar association)