Your Next Equipment Purchase Just Got Cheaper to Finance: What Ottawa's Mega Deduction Means for Your Business
On September 15, 2026, at the first Canada Investment Summit in Toronto, Prime Minister Mark Carney introduced the Productivity Mega Deduction, and the Department of Finance released draft legislation to implement it the same day. The measure would permanently let businesses deduct 100% of the cost of most depreciable property in the year it becomes available for use, and it would extend immediate expensing to Canadian development expenses. It applies to eligible property acquired on or after September 15, 2026, and Finance says it covers approximately two-thirds of investment in capital assets. For a business, that means the full write-off arrives in year one rather than over the life of the asset, which improves cash flow and shortens the after-tax payback on new equipment, technology, and development spending. Finance estimates that it lowers Canada's marginal effective tax rate on new business investment from 13.0% to 6.4%, compared with 16.9% in the United States and 19.0% for the OECD average.
A day earlier, Minister of Finance and National Revenue François-Philippe Champagne announced that the Canada Revenue Agency will prioritize advance income tax rulings for investments of $1 billion or more in Canada. The practical first step is to map your planned capital spending against CCA classes with your tax advisors, because the draft rules exclude buildings in classes 1 and 3, franchises, licences and goodwill, regulated natural gas distribution pipelines, certain vehicles, and some used property.
The Mega Deduction is the centrepiece of a government effort to catalyse $1 trillion of investment in Canada over five years. Carney put it plainly: “We are capitalising on these strengths and making Canada the best place in the world to invest.” Champagne framed the ruling priority the same way: “When investors are considering major projects, certainty matters.” The message to Canadian companies is direct. A firm that builds, expands, or equips a facility in Canada is not asking Ottawa for a favour. It is delivering the investment this government has made its economic priority, on the terms the government chose.
The gap is not eligibility. The gap is positioning. The deduction is not discretionary: qualifying property is covered once the legislation passes, with no application, no intake, and no ministerial sign-off. That is also its limit. It is a timing measure that moves deductions forward rather than adding to them, and it lowers the cost of capital for every company that invests, including the ones competing with yours. What it does not do is decide which projects Ottawa prioritizes, which companies the government points to when it makes the case for investing in Canada, or which projects the Major Projects Office advances. The Office is currently advancing 27 nation-building initiatives representing more than $192 billion in investment. Those decisions sit with ministers and their offices at Finance, Industry, Energy and Natural Resources, and the regional development agencies, with the Deputy Ministers who assess the files, and with the Prime Minister's Office, which sets priorities across all of them.
The window is now because the rules are not final. The Mega Deduction is a proposal supported by draft legislation, and the details that determine who benefits, including the exclusions and the treatment of used property, remain open to change before enactment. Property acquired from September 15 is covered if the legislation passes as proposed, which means companies are making capital decisions today ahead of the final text. A company whose project is understood in Ottawa before those details lock in operates in a different environment from one that models its cash-tax benefit, claims the deduction, and then looks for federal support after others have secured it.
General information only; this is not tax advice.
Northern Arc works with Canadian companies at the ministerial, Regional Development Agency, and PMO level. If you want to understand where your company fits across the Productivity Mega Deduction and the wider federal investment landscape, and what positioning your file before the rules are final looks like in practice, request your briefing and we will deliver it within 48 hours.