The Canadian government unveiled a significant tax reform during the Canada Investment Summit to enable businesses to deduct investments. The new productivity mega-deduction will permit companies to write off the full cost of new investments in various sectors, including machinery, equipment, clean energy, and zero-emission vehicles.
Prime Minister Mark Carney, speaking at the summit, expressed the aim of positioning Canada as the most appealing investment destination among the G7 nations. This initiative expands upon the government’s prior productivity super-deduction introduced in the previous year’s budget, which initially covered a limited range of investments. With this expansion, approximately two-thirds of assets will now be eligible for deduction, up from the initial coverage of about 15%.
According to Carney, broadening the deduction to additional sectors will empower business leaders to invest strategically where they perceive the most value, ultimately enhancing productivity, an area where Canada has historically lagged behind. Randall Bartlett, deputy chief economist at Desjardins, noted that this reform allows companies to immediately recoup investments, providing substantial incentives for swift and increased investment.
The government anticipates that this tax change will substantially reduce Canada’s marginal effective tax rate from 13% to 6.4%, positioning it as the G7 country with the lowest tax burden on businesses. This move is seen as a strategic measure to retain companies within Canada amidst global trade uncertainties and encourage investments that were previously postponed.
While the reform is estimated to cost $36 billion over five years, the short-term revenue gains from high oil prices are expected to offset the immediate financial impact. Economists like Jim Stanford, from the Centre for Future Work, view this program as a more effective approach compared to a blanket corporate tax cut, as it requires businesses to reinvest the savings, ensuring tangible outcomes.
Stanford emphasized the value of the new deduction model, stating that it incentivizes investments in Canada, unlike a generic tax reduction. The program’s pay-to-play structure aligns with the government’s objective of driving economic growth through increased capital investments in the country.

