CPA Canada commodity tax committee

Chartered Professional Accountants of Canada (CPA Canada) advocates for better indirect tax policy and administration in Canada through its CPA Canada Commodity Tax Committee.

This committee gives Canada’s CPAs a voice in influencing indirect tax, customs and trade policy and administration in Canada. Composed of representatives from some of Canada’s larger accounting firms, the committee aims to identify, raise and help resolve commodity tax issues with the Canada Revenue Agency (CRA) and Finance Canada.


Heather Weber, CPA, CGA
Indirect Tax Services Leader, MNP LLP


Rosemary Anderson, CPA, CA, CCS
National practice group leader, Thorsteinssons LLP

Danny Cisterna, BMath, CPA, CA
Partner, National leader, Tax, Deloitte Canada

Sania Ilahi, MBA
Partner, Tax Services, Ernst & Young LLP

Mario Seyer, CPA, CA
Partner, PricewaterhouseCoopers LLP

Shelley Smith, CPA, CA
Partner, East Group Tax Service Line Leader & Indirect Tax Practice Leader, BDO Canada LLP

Simon Proulx
Partner, Indirect Tax, KPMG Canada

Christina Zurowski, CPA, CA
Partner, Tax, Grant Thornton LLP

Staff liaisons

Bruce Ball, FCPA, FCA, CFP, TEP
CPA Canada Tax Advisory Committee Chair
Vice-president, Taxation, CPA Canada

Vivian Leung, CPA, CA
Senior Principal, Taxation, CPA Canada

Fabio Bonanno, CPA, CA
Principal, Taxation

Learn more about the CPA Canada Commodity Tax Committee terms of reference.

Position and response papers