Philippe DioGuardi, LL.B, LL.L


Philippe DioGuardi is a Canadian tax lawyer. His practice has been focused exclusively on remediation of problems with tax compliance and collection issues. His firm was among the first in Canada to offer the opportunity of a lawyer-protected tax amnesty for forgiveness of the serious penalties and risk of prosecution associated with unreported income and years of unfiled back taxes


DioGuardi was born in Hull, Quebec in 1961. His mother is French Canadian with roots in Quebec dating back to the 1700s. His father, Paul DioGuardi, an English Canadian from Ottawa, was a law student at the University in Kingston, Ontario. Philippe grew up fluent in English and French. His father took his call to the bar and worked in investigations with the Canada Revenue Agency, and thereafter for the Department of Justice, representing the tax agency in complex and high level criminal and international cases. As a boy DioGuardi often shared family dinners with CRA auditors and investigators, and even tax court judges. Eventually his father left the public sector to establish a private tax law practice in Ottawa.


DioGuardi attended University of Ottawa Law School, earning degrees in both common law (L.L.B.) and the Quebec Civil Code ( LL.L). Called to the bar in Ontario in 1990 and the Barreau du Québec in 1991, DioGuardi entered into private practice as a tax litigator, representing clients in civil and criminal matters in both languages in both Ontario and Quebec.

In 2004 he joined with his father to create a law firm focused exclusively on the resolution of taxpayer delinquencies and conflicts with the tax authorities. The DioGuardi Tax Law firm was among the first in Canada to assist taxpayers in the filing of a tax amnesty (voluntary disclosure) to resolve unreported income and unfiled back taxes. Originally located in downtown Ottawa, the firm also has offices in Mississauga and downtown Toronto.  Since 2004 DioGuardi has represented nearly 9,000 clients.


In 2008, DioGuardi and his father co-authored The Taxman Is Watching, published by Harper Collins Canada. The book was on the Canadian business bestseller list for 10 weeks, and is still available from major booksellers.