Several measures could affect investment costs, capital gains and research spending
Budget 2026, released on November 5, 2026, presents several business tax proposals. They include a capital gains exemption for eligible investments, an enhanced small business rollover and expanded treatment of certain commercialisation expenses under the Scientific Research and Experimental Development tax incentive program, commonly called SR&ED.
The budget also includes the Productivity Mega Deduction, which the government had previously proposed on September 15, 2026. That measure would allow immediate expensing for most eligible depreciable property, subject to exclusions and restrictions.
These measures are proposals, not currently claimable tax benefits based on the supplied sources. Important eligibility rules, commencement provisions and filing procedures remain unavailable for several of them.
What Budget 2026 proposes
| Proposal | What is known | What remains uncertain |
|---|---|---|
| Capital gains exemption | Up to $15 million in capital gains from eligible investments would be covered. | Eligible investments are not defined, and the sources do not explain how the limit would be measured or allocated. |
| Enhanced small business rollover | The measure is included in the proposed Canada Growth Incentive. | No detailed limits, qualifying businesses, replacement-investment period or timing rules are supplied. |
| SR&ED commercialisation expansion | Budget 2026 proposes $930 million to include certain commercialisation expenses. | The eligible expenses, funding period, claim mechanics and commencement provisions are not provided. |
| Productivity Mega Deduction | Most eligible depreciable property acquired on or after September 15, 2026 would qualify for immediate expensing if the proposal is enacted as drafted. | The measure remains proposed and is subject to draft rules, exclusions and restrictions. |
The proposed capital gains exemption is not yet fully defined
The Canada Growth Incentive is described as including an exemption for up to $15 million in capital gains from eligible investments. The supplied sources do not define which investments would be eligible.
They also do not establish whether the $15 million limit would apply by taxpayer, corporation, investment, year, lifetime or on another basis. It should therefore not be interpreted as an exemption available to every investor, business owner, shareholding or investment.
No enacted effective date, application process, election or filing procedure has been established for this proposal.
Details are also missing for the enhanced small business rollover
Budget 2026 presents an enhanced small business rollover as another part of the Canada Growth Incentive. A rollover can defer the immediate tax consequences of a transaction when applicable conditions are met, but the supplied material does not provide the detailed proposed conditions for this measure.
In particular, the available sources do not establish the qualifying shares or businesses, final limits, replacement-investment period, transitional provisions or effective date. The proposal cannot be assumed to apply to every Canadian small business.
The SR&ED proposal covers only certain commercialisation expenses
Budget 2026 proposes $930 million to expand the SR&ED tax incentive program to include certain commercialisation expenses. The word “certain” is important: the supplied sources do not define which expenses would qualify, and the proposal should not be read as covering every marketing, product-launch or commercialisation cost.
Current Canada Revenue Agency guidance lists allowable SR&ED expenditure categories but does not implement the proposed expansion. Existing CRA policy generally excludes sales, marketing and advertising, commercialisation of existing intellectual property, patent applications and putting products into saleable condition from SR&ED overhead and other expenditures.
No claim form, filing procedure or effective date for the proposed expansion is established in the supplied material.
How the Productivity Mega Deduction would work
The Productivity Mega Deduction was first proposed on September 15, 2026, before the release of Budget 2026. Draft amendments to the Income Tax Act and Income Tax Regulations accompanied the proposal.
If enacted as drafted, it would permanently allow immediate expensing for most eligible depreciable property acquired on or after September 15, 2026. Immediate expensing would generally allow the eligible cost to be deducted in the taxation year when the property becomes available for use.
The September 15 date is a proposed application date. It does not mean the measure is currently in force. The measure would operate retroactively from that date only if enacted with the proposed timing intact.
The government estimates that about two-thirds of investment in capital assets would be eligible. Major proposed exclusions include:
- Specified Class 1 and Class 3 buildings;
- Classes 14, 14.1 and 51;
- Certain vehicles; and
- Property depreciated under Schedules V and VI.
Manufacturing and processing buildings are not covered by the Productivity Mega Deduction, although the Finance backgrounder says they may be subject to a separate temporary measure announced in Budget 2025. Property that does not qualify for immediate expensing would continue to receive the existing Accelerated Investment Incentive, according to that backgrounder.
Used property and income restrictions
Used property would qualify only where neither the taxpayer nor a non-arm’s-length person previously owned it and it was not transferred on a tax-deferred rollover basis.
The draft rules would also restrict individuals and partnerships containing individuals from using immediate expensing to create or increase a loss. Their deduction would generally be limited by income from the business or property source in which the asset is used.
Canadian development expenses incurred on or after September 15, 2026 would also qualify under the proposal, subject to the proposed rules.
Separate proposed treatment for LNG equipment
Eligible Class 47 liquefaction equipment used in liquefied natural gas facilities would have separate proposed treatment. The acquisition-date threshold would be November 4, 2025, and the deduction would be limited by income attributable to liquefaction activities.
What the government’s tax-rate estimates mean
The government modelled a reduction in the marginal effective tax rate on new business investment from 13% to 6.4% under the Productivity Mega Deduction. These figures are not general corporate income tax rates and do not represent a guaranteed saving for an individual business.
The government also estimates an incremental fiscal cost of $36 billion over five years beginning in 2026-27. This is an estimated cost to the federal government, not an amount available to any individual company.
These proposals have not been established as law
The Productivity Mega Deduction is supported by draft legislative proposals. Draft proposals are not the same as a bill introduced in Parliament, enacted legislation or final regulations.
As of November 7, 2026, the supplied House of Commons list of 41 government bills showed no identified Budget 2026 implementation bill. That finding is limited to the supplied parliamentary record and does not establish anything beyond that list.
The available material does not establish that the Budget 2026 measures have been enacted or brought into force. Parliament could enact, amend or decline to enact a proposal.
Do You Need to Do Anything?
No application, election, filing or claim procedure has been established for the proposed capital gains exemption, enhanced small business rollover or SR&ED commercialisation expansion. Businesses should not claim or structure transactions around these proposals as though they were enacted.
A business assessing the proposed Productivity Mega Deduction would need to determine the property’s acquisition date, when it became available for use, its capital cost allowance class, whether it is excluded and whether the used-property or income restrictions apply. These considerations do not make the deduction currently claimable.
The draft immediate-expensing rules also contemplate an election, made in a timely filed income tax return, to exclude certain Class 10.1 property from immediate-expensing treatment. This remains a draft rule rather than a current filing instruction.
Bottom Line
Budget 2026 contains potentially significant business tax proposals, but the available details vary considerably. The Productivity Mega Deduction has draft rules and proposed application dates, while the capital gains exemption, enhanced small business rollover and SR&ED commercialisation expansion still lack essential eligibility, timing and claim details.
Until legislation is enacted and the applicable requirements are established, businesses should treat every measure discussed here as proposed rather than as current tax law.
Official Government Sources
- Department of Finance Canada: Budget 2026 key measures
- Department of Finance Canada: Budget 2026 release
- Department of Finance Canada: Productivity Mega Deduction backgrounder
- Department of Finance Canada: Draft Income Tax Act and regulation amendments
- Parliament of Canada: House government bills
- Canada Revenue Agency: Allowable SR&ED expenditures
- Canada Revenue Agency: SR&ED overhead and other expenditures policy
This article provides general information based on official Canadian government sources. Government programs, amounts, eligibility rules and deadlines can change. Check the official sources linked above for information specific to your situation.