Understanding Canada's Accelerated Investment Incentive

The Accelerated Investment Incentive changes when you get a capital deduction, not how much of it you get in total. That distinction matters, because businesses regularly buy equipment they did not need in order to capture a first-year write-off that only moves the deduction forward a few years.

What it does

Normally, a new asset added to a CCA class gets only half the class rate in the first year. That is the half-year rule, and it exists to stop businesses buying equipment on December 30 for a full year's deduction.

The incentive does two things to eligible property:

1. It suspends the half-year rule.
2. It adds an uplift to the first-year base, so the first-year claim is calculated on more than the cost of the asset.

Put together, the first-year deduction is a multiple of what the half-year rule would have allowed. When the incentive was introduced, the uplift produced roughly three times the first-year amount that would otherwise have applied. On a Class 10 asset at 30%, that is the difference between 15% and 45% of cost in year one.

Everything after year one runs normally. The pool balance is smaller because more came out at the start, so later years' deductions are smaller. Over the life of the asset the total deduction is unchanged. What you gain is the cash, earlier.

The uplift phases out

The rules have been amended and phased since introduction. The enhanced first-year treatment applies at a higher rate for property that became available for use in the earlier years of the programme, steps down for property available for use later, and is scheduled to end.

We are not quoting a current percentage here because the schedule has changed more than once. Before relying on a first-year number, confirm which factor applies to property becoming available for use in your fiscal year. A calculation built on last year's factor will be wrong in the right direction to attract attention.

Separate, more generous treatment has applied to certain categories, including manufacturing and processing equipment, clean energy equipment and zero-emission vehicles, some of which have allowed a full write-off in the first year. Those measures carry their own phase-out schedules and their own eligibility conditions.

Available for use is the trigger

This is the single most useful thing to know, and it is the point that costs businesses money every December.

The deduction attaches to the year the property becomes available for use, not the year it was ordered, invoiced or paid for. Equipment delivered on December 28 and still in its crate at year end is generally not available for use. A vehicle bought but not yet delivered is not available for use. Software licensed but not installed is not available for use.

If you are timing a purchase to land in a particular fiscal year, work backwards from installation and commissioning, not from the invoice date. For equipment with a long lead time, that can mean committing months earlier than you expected.

There is also a rolling rule that treats property as available for use by the second taxation year after acquisition even if it is not yet in service, which helps with long projects but does nothing for a year-end deadline.

What does not qualify

The incentive is broad, and it covers most depreciable property including buildings, vehicles, computer equipment and machinery. The exclusions matter more than the inclusions:

• Property acquired from a person or partnership you do not deal with at arm's length
• Property transferred on a tax-deferred rollover basis
• Property that was previously owned by the taxpayer or a non-arm's-length party
• Certain classes that were already outside the half-year rule

Buying equipment from a related company to generate a first-year deduction does not work. That is what the non-arm's-length exclusion is for.

How to use it sensibly

The incentive improves the after-tax cost of an asset you were going to buy anyway. It does not turn an unnecessary purchase into a good one. A $100,000 machine that accelerates $30,000 of deduction into the current year is worth the corporate tax on $30,000 in cash flow terms, which is a fraction of the purchase price.

The cases where it genuinely changes a decision are narrower and worth looking for. A profitable year where income sits above the small business limit, so the deduction is worth more now than later. A planned replacement that could reasonably happen in either of two fiscal years. A year where accelerating deductions keeps you under a threshold that matters for something else.

The interaction with the rest of your capital pools is worth modelling rather than guessing. If you want the background on how the classes and pools work, our post on capital cost allowance covers the mechanics, and we run the projections as part of corporate tax planning before the year closes rather than after.

Records to keep

Purchase agreements and invoices with dates. Delivery documentation. Installation and commissioning records, which establish the available-for-use date. Evidence that the vendor was at arm's length. The last one seems trivial until a family-connected supplier turns up in an audit file.

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General information only, current at August 2026. Tax rules change and GST/HST status is fact-specific. Confirm your own position before relying on anything here.