About DioGuardi Law

DioGuardi Law is a tax law firm headquartered in Ottawa, with a second phone line for clients in Toronto and the GTA. Senior counsel Paul DioGuardi, a King's Counsel and a member of the Bars of Ontario, British Columbia and the Turks and Caicos Islands, has practiced tax law since 1966 and trained at the Ottawa head offices of Revenue Canada and the Tax Litigation Section of the Department of Justice. The firm concentrates on resolving disputes with the Canada Revenue Agency: audits, unfiled returns, unpayable tax debt and tax amnesty applications under the Voluntary Disclosures Program, along with criminal tax defense. It also practices corporate and commercial law, real estate, and wills, estates and trusts.

Paul DioGuardi has co-authored three books on Canadian tax law with tax lawyer Philippe DioGuardi, who runs a related practice, DioGuardi Tax Law: Tax Amnesty: Avoiding the Tax Trap, The Taxman is Watching, and Never Smile at a Crocodile. Lawyer Brigitte DioGuardi earned a law degree from the University of Sheffield in the United Kingdom, was called to the Law Society of Ontario in 2002, and for three years ran the Vancouver office of DioGuardi Tax Law.

In the community

  • DioGuardi Law publishes a blog of articles on Canadian tax law, including case based write ups on CRA audits, undeclared income, and tax debt collection.

Good to know

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This firm’s lawyers at a glance

Languages on the roster
English, French

Where to find them

1505 Laperriere Ave, Suite 370, Ottawa, ON K1Z 7T1 · 613-237-2222

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