Canada Touts Mega Deduction for Major Production
G. John Samms, Colm St. Roch Seviour, K.C., Jim Cruickshank, TEP, Tyler Callahan and Aaron Rhinelander
During the Canada Investment Summit 2026, the federal government announced the Productivity Mega Deduction (“Mega Deduction”) to boost Canada’s advantage, touting Canada as the most competitive G7 country for new business development.
The Mega Deduction stands to reshape the calculus around investment timing and deal structuring for businesses pursuing large-scale capital projects in Canada. By dramatically widening the scope of assets eligible for immediate write-off, the Mega Deduction will allow taxpayers to front-load deductions that currently unfold over many years, meaningfully enhancing early project-level returns.
Although the final Mega Deduction provisions may be refined, the direction of travel is clear: Ottawa is signalling a decisive shift toward a more competitive tax environment for capital deployment.
What is the Productivity Mega Deduction?
The Mega Deduction is a new income tax measure introduced by the Federal Government. The deduction is projected to reduce the average effective tax rate on new business investments to 6.4%. This is the lowest rate among Canada’s trading partners, being less than half that of the United States and less than a quarter of the G7 average.
The Federal Government will expand the proportion of depreciable capital assets eligible for immediate expensing from 15% to 65%, dramatically broadening the range of investments that qualify for a full first-year deduction.
What is immediate expensing?
Immediate expensing allows the full cost of eligible depreciable capital property to be deducted in the year of purchase, immediately lowering a business’s taxable income and freeing up short-term cash flow.
What is covered?
The devil is always in the details, and this tax measure is no different. Assets which will be newly eligible for immediate expensing (“Eligible Assets”) via the Mega Deduction include fibre-optic cable, mining property, oil and gas pipelines, software, R&D, computer equipment, aircraft and vehicles, patents, rail track, bridges, and roads.
Businesses operating in the energy and mining sectors should take note that immediate expensing will also extend to Canadian development expenses, including mining exploration, mine development before production, and purchases of Canadian mineral property.
There are still some categories of depreciable capital property which will not be eligible for immediate expensing. Key exclusions include:
- most buildings, structures, and component parts;
- certain additions or alterations to buildings;
- patents, franchises, concessions, goodwill; and
- natural gas distribution pipelines.
Specific restrictions to eligibility
To qualify for immediate expensing, the Eligible Assets:
- must be acquired on or after September 15, 2026;
- must not have been previously used or deducted by any person; and
- must not have been acquired from a non-arm’s-length party.
Conclusion
The Mega Deduction will be most useful for truly shovel-ready projects, in which project income is plainly within view, and with it, the potentially lucrative effects of the immediate expensing central to the Mega Deduction. It is a useful tool in addition to other pro-development tax incentives, such as the Clean Economy Tax Credit. We encourage businesses exploring new ventures or weighing significant asset acquisitions to connect with our Energy Group to discuss how the Mega Deduction can benefit their plans.
This client update is provided for general information only and does not constitute legal advice. If you have any questions about the above, please contact a member of our Energy Group.
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