Pierre-Yves Lemieux



Pierre-Yves began his professional career in assurance where he gained solid experience and learned the ropes of the accounting profession. With this wealth of knowledge, he then decided that his practice would focus exclusively on taxation.


Prior to founding 4CPA, Pierre-Yves had the opportunity to work for various accounting firms in the National Capital Region, which allowed him to gain considerable experience, especially in regards to everything that revolves around small and medium-sized companies. Tax compliance related to corporate taxes and those of their shareholders, as well as reorganizations, estates and trusts are part of his areas of expertise. Having represented several taxpayers during audits, opposition and other disputes with tax authorities, Pierre-Yves has also gained exceptional negotiating skills over the years.


His down-to-earth approach, thoroughness, availability and ability to explain complex tax concepts make him an ideal business partner with whom you will enjoy working. Pierre-Yves is also a lecturer at the Université du Québec en Outaouais where he teaches the Business and Investor Tax Course in the Bachelor of Accounting.

Education & Training

Pierre-Yves holds a Bachelor’s degree in Accounting from Université du Québec en Outaouais. He then continued his academic training which led him to receiving the Chartered Professional Accountant (CPA, CMA) title and obtaining a Master’s degree in Taxation from Université de Sherbrooke.

Community Involvement

In addition to having an active and exciting career, Pierre-Yves is also very involved with the Gatineau Taekwon-Do (ITF) Club where he sits as Treasurer on the Board of Directors and he teaches to volunteers throughout the year on a voluntary basis.

Professional Affiliation

Pierre-Yves is a member of both the Quebec Chartered Professional Accountants Order and the CPA Canada.