From Super to Mega:

Budget 2025 introduced the Productivity Super-Deduction as a package of accelerated CCA measures intended to encourage business investment. Certain components of that package have subsequently proceeded through implementing legislation, while others have followed separate legislative proposals. Accordingly, businesses should confirm the current legislative status of the particular measure on which they intend to rely. 

Other capital assets can benefit from the Accelerated Investment Incentive, which increases the CCA otherwise available in the first year.

The proposed Mega Deduction changes the approach considerably. Rather than identifying a relatively limited collection of favoured asset classes, the starting point would generally be that depreciable capital property subject to the CCA system qualifies for immediate expensing unless it is specifically excluded.

That is a fundamental expansion of the regime.

What would qualify?

Under the September 15, 2026 proposals, most depreciable property acquired on or after September 15, 2026 would potentially qualify.

Examples of the substantially broader range of investments that may qualify include equipment, computer hardware, software, fibre-optic cable, aircraft, certain vehicles, mining property, certain oil and gas pipelines, rail track, bridges, roads and numerous other forms of depreciable business property. The government has specifically identified many of these categories when describing the intended breadth of the measure.

The proposal would also provide immediate deductions for qualifying Canadian development expenses (CDE) incurred on or after September 15, 2026, rather than the ordinary 30 per cent declining-balance deduction.

Importantly, used property is not automatically disqualified. However, property that was previously used, or acquired for use, can generally qualify only where the taxpayer or a non-arm's-length person did not previously own the property and the property was not transferred to the taxpayer on a tax-deferred rollover.

The asset must be available for use

One of the most important practical rules is that purchasing or paying for an asset is not necessarily enough to obtain the deduction.

The Mega Deduction would generally be claimed in the first taxation year in which the property becomes available for use. This incorporates the existing "available-for-use" concepts in the CCA regime. For example, assume a corporation purchases and takes delivery of a major piece of manufacturing equipment shortly before its December 31 year-end, but installation and commissioning are not completed until the following year. Depending on the application of the available-for-use rules, the deduction may belong in the following taxation year rather than the year in which the purchase order was signed or the equipment was paid for. For businesses with major projects under construction, this makes installation, commissioning and available-for-use dates important tax-planning information.

Can the Mega Deduction create a tax loss?

For corporations, the answer can generally be yes. A corporation acquiring substantial eligible property could claim immediate expensing even where the deduction exceeds the income otherwise earned during the year, potentially creating or increasing a non-capital loss. The normal rules governing the utilization and carryover of that loss would then apply. The result is different for individuals and partnerships having an individual as a member. The proposed rules would restrict the immediate-expensing deduction so that it cannot create or increase a loss from the business or property in which the asset is used. This distinction may be relevant for unincorporated businesses and partnerships. It also means that the economic value of the Mega Deduction can differ depending on the legal structure through which the business operates. Incorporation should never be undertaken solely to obtain a CCA deduction, but the proposed loss restriction is another factor that may be relevant when businesses compare corporate and unincorporated structures.

Super versus Mega: what has really changed?

The simplest way to think about the two regimes is this:

The Productivity Super-Deduction targets particular investments. The Productivity Mega Deduction proposes to make immediate expensing the general rule for most depreciable business investment, with specified exceptions.

The Super-Deduction was principally a collection of targeted and generally temporary incentives. The Mega Deduction would expand immediate expensing from approximately 15 per cent to roughly two-thirds of capital investment and, importantly, would make that broader treatment permanent. That permanence may ultimately be as important as the 100 per cent deduction itself. Businesses considering long-term projects can potentially incorporate immediate expensing into investment models without trying to accelerate projects merely to meet the expiry date of a temporary tax measure.

The government's stated objective is to increase business investment and ultimately Canadian productivity. Finance estimates that the measure would reduce Canada's marginal effective tax rate on new business investment from approximately 13 per cent to 6.4 per cent. The government estimates an incremental fiscal cost of approximately $36 billion over five years and projects that the measure could produce substantial additional economic activity over the longer term. These are government estimates rather than guaranteed outcomes. From an economic perspective, immediate expensing has an intuitive attraction: reducing the after-tax cost of new capital should make some investments economically viable that otherwise would not proceed. It also increases the present value of tax deductions by allowing businesses to claim them today rather than years into the future. But there is an important distinction between encouraging capital investment and increasing productivity. 

The deduction does not require a taxpayer to demonstrate that an investment actually makes employees more productive, introduces new technology, increases output per worker or generates innovation. A qualifying capital expenditure can receive accelerated tax treatment regardless of whether the investment ultimately produces a measurable productivity improvement. However, the fact remains that businesses that invest the most in qualifying capital property have the greatest opportunity to benefit. Capital-intensive manufacturers, transportation businesses, mining companies, energy and infrastructure businesses, telecommunications businesses and other enterprises requiring substantial machinery, equipment and infrastructure could see very significant benefits. A professional services business, consulting company or other relatively labour-intensive enterprise with modest capital requirements may receive considerably less benefit, not because it is less productive or innovative, but because it simply purchases fewer depreciable assets. 

Even among small businesses, the impact will vary considerably. A small manufacturer purchasing $2 million of machinery could receive a major timing benefit, while a similarly profitable service business employing additional skilled workers rather than purchasing equipment may receive relatively little from the measure. 

The Mega Deduction should therefore be viewed primarily as an investment incentive delivered through the tax system. Whether that investment translates into higher Canadian productivity will ultimately depend on what businesses purchase, whether the tax incentive actually causes incremental investment rather than merely subsidizing expenditures that would have occurred anyway, and how effectively businesses deploy the resulting capital. 

The Mega Deduction remains proposed legislation. Businesses should not treat the September 15 announcement as though Parliament has already enacted the rules in their final form. 

Nevertheless, businesses contemplating significant capital expenditures should begin reviewing their plans now. In particular, consideration should be given to the acquisition date, the relevant CCA class, whether the property is specifically excluded, when the asset will become available for use, whether used-property or rollover restrictions apply, the amount of taxable income expected in the available-for-use year, the potential value of creating a corporate tax loss, and the possibility of future recapture when the asset is sold. 

Asset purchase transactions may also require additional attention. Buyers and sellers can have competing interests in allocating purchase price among equipment, buildings, goodwill and other assets, and the availability of immediate expensing to the purchaser may make those allocations even more economically significant.