Justice Monica Biringer was born in Toronto and educated at the University of Toronto Schools, Queen’s University (BA, 1981), and the University of Toronto Law School (JD, 1984). She was called to the Ontario bar in 1986. Justice Biringer practised in the Tax Department of Osler, Hoskin & Harcourt LLP after her call to the bar, most recently as Co-Chair of the National Tax Group. For many years, she practised in various areas of corporate income tax planning, with an emphasis on mergers and acquisitions, corporate finance and financial restructuring. In more recent years, her practice focus was on tax disputes and litigation. Justice Biringer has appeared at all levels of federal and provincial courts with respect to income tax matters. While at Osler, she also held various positions in firm management. Justice Biringer has been an author and speaker at conferences on various Canadian tax matters, is a past Governor of the Canadian Tax Foundation, has taught at the Bar Admission Course, and was on the editorial board of various tax publications. She has been recognized as a leader in tax law by various international and domestic tax organizations and for her accomplishments in supporting the advancement of women in the legal profession. Justice Biringer was appointed to the Tax Court of Canada on August 4, 2021 and to the Federal Court of Appeal on June 22, 2023.