Derek Wagar is a Partner in the Tax group at Fuller Landau. With a wealth of experience as a Canadian income tax professional, he uses his specialized knowledge and expertise to help clients pay less corporate and personal tax. In particular, he advises on reorganizations, trusts and estate planning, corporate acquisitions and disposals, corporate tax due diligence, cross-border tax issues, sales tax, and tax minimization strategies.

Clients value Derek’s direct approach to communication and his practical, results-oriented nature. He takes the time to simplify complex concepts to ensure clients are well-informed when making important decisions for their business. Derek’s clients include high net-worth individuals, small and mid-sized owner-managed companies, and other private corporations.

Derek plays an active role when it comes to training and mentorship at Fuller Landau. He proactively works to advance the professional development of managers and junior staff, alike. Outside the office, Derek enjoys playing hockey and golf, and spending time with his wife and two children. For the past several years, he has been a Board member for the Pancreatic Cancer Canada Foundation, while also serving as its Secretary Treasurer.

Academic Achievements, Memberships and Professional Designations

  • Member, CPA Ontario
  • Canadian Tax Foundation
  • Completed CICA In-Depth Tax Courses

Community Initiatives/Community Organizations

  • Secretary/Treasurer and Member of the Board, National Pancreatic Cancer Canada Foundation

Derek Wagar

CPA, CGA Partner, Tax 416-645-6518

Practice Areas

  • Tax


  • Manufacturing and Distribution
  • Real Estate and Construction
  • Information Technology
  • Professional Services
  • Transportation and Logistics

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Fuller Insights

2019 Federal Budget – “Investing in the Middle Class”

Derek Wagar • March 20, 2019

On March 19, 2019, the Honourable Bill Morneau, Minister of Finance, released the 2019 federal budget, “Investing in the Middle Class”. The budget forecasts a $14.9 billion deficit for fiscal 2018-19, a $19.8 billion deficit for 2019-20, and a $19.7 billion deficit for fiscal 2020-21. Although the government does not forecast a balanced budget, it

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2019 Federal Budget – Personal Tax Measures

Derek Wagar • March 20, 2019

The Liberal government’s 2019 federal budget, tabled on March 19th, proposes a few personal tax measures that may impact certain taxpayers. Here are some of the most relevant measures to note. Canada Training Credit The 2019 budget introduces a new refundable Canada Training Credit (CTC), intended to provide financial support for professional development and training

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2019 Federal Budget – SR&ED Tax Credit and CCA Deduction

Derek Wagar • March 20, 2019

On March 19th, Finance Minister Bill Morneau tabled the Liberal government’s 2019 federal budget. The following is a summary of the proposed changes to the SR&ED tax incentive, and the enhanced CCA deduction.  Scientific Research & Experimental Development Under the current Scientific Research & Experimental Development (SR&ED) incentive program, qualifying expenditures are fully deductible by

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