Capital Cost Allowance (CCA) is the Canadian tax system's method for depreciating capital assets — things like equipment, vehicles, and buildings used in your business. Rather than deducting the full cost of an asset the year you buy it, CCA lets you write off a portion of its cost each year based on a class-specific rate set by the Canada Revenue Agency (CRA). Understanding how CCA works can mean the difference between leaving money on the table and claiming every deduction you are entitled to.
One important distinction: CCA is not the same as book depreciation. Your accounting records may show a different depreciation figure for financial reporting purposes. For your tax return, only the CCA rules matter — and those rules follow a specific set of classes, rates, and timing requirements.
Most CCA classes use the declining balance method. Each year, you apply the class rate to the asset's Undepreciated Capital Cost (UCC) — the original cost minus all CCA claimed in prior years. Because you are always applying the rate to a shrinking balance, the deduction gets smaller every year but technically never reaches zero.
For example, if you purchase equipment for $10,000 in a Class 8 asset (20% rate), your first-year CCA calculation starts with the UCC of $10,000. Apply the half-year rule (explained below) and you claim $1,000 in year one. Your opening UCC for year two is $9,000, from which you claim $1,800, and so on.
CCA is optional — you are never required to claim the maximum amount. Unused CCA does not expire; the UCC simply carries forward to future years. This flexibility lets you manage taxable income strategically across years.
The CRA assigns every depreciable asset to a specific class. The table below covers the classes most relevant to Canadian small and medium businesses.
| Class | Rate | What It Covers |
|---|---|---|
| Class 1 | 4% | Buildings acquired after 1987 (most commercial and rental properties) |
| Class 3 | 5% | Buildings acquired before 1988 |
| Class 8 | 20% | Most business furniture, fixtures, equipment, and machinery not in another class |
| Class 10 | 30% | General-purpose vehicles, including most passenger cars (non-luxury) |
| Class 10.1 | 30% | Luxury passenger vehicles — cost capped at $37,000 (2024/2025) |
| Class 12 | 100% | Tools under $500, certain software, kitchen equipment |
| Class 13 | Straight line | Leasehold improvements — deducted over the lease term |
| Class 14 | Straight line | Patents and franchises with a limited, fixed life |
| Class 14.1 | 5% | Goodwill, customer lists, other eligible capital property (replaced the old CEC) |
| Class 16 | 40% | Taxis, rental vehicles, coin-operated machines |
| Class 43.1 / 43.2 | 50% / 100% | Clean energy equipment (accelerated rates to encourage green investment) |
| Class 50 | 55% | Computer equipment and systems software purchased after January 27, 2009 |
If a passenger vehicle costs more than $37,000 (before tax) in 2025, it falls into Class 10.1 rather than Class 10. The CCA deduction is capped based on the $37,000 limit regardless of the actual purchase price. Each Class 10.1 vehicle gets its own separate class — you cannot pool multiple luxury vehicles together. The operating cost per-kilometre deduction for 2025 is $0.33/km for business travel.
In the year you acquire a depreciable asset, the CRA limits your CCA claim to half the normal amount. This is called the half-year rule (also known as the 50% rule). It applies regardless of when in the fiscal year you actually bought the asset — whether January or December, the deduction is the same.
Using the Class 8 example above: the normal annual deduction on $10,000 at 20% would be $2,000. With the half-year rule, your first-year maximum is $1,000. Starting in year two, you apply the full 20% rate to the remaining UCC of $9,000.
The half-year rule does not apply to all classes — Class 12 assets (100% rate), for instance, are generally exempt, allowing full write-off in the year of purchase.
To encourage business investment, the federal government introduced the Accelerated Investment Incentive (AII) for eligible assets acquired after November 20, 2018. Under AII, the first-year CCA can be up to three times the normal rate, effectively suspending the half-year rule and applying 1.5x the standard rate to the full cost.
For certain clean energy assets (Classes 43.1 and 43.2) and manufacturing and processing equipment, AII provides a 100% first-year write-off — meaning full deduction in the year of purchase. This is sometimes referred to as the Immediate Expensing incentive.
Important: AII is being phased out between 2024 and 2028. Assets acquired in 2024 and 2025 still qualify but at reduced rates depending on the class. Assets acquired after 2027 will revert to standard CCA rules. If you are planning a major capital purchase, the timing relative to this phase-out is worth discussing with your accountant.
Selling a capital asset triggers one of two tax consequences depending on how the proceeds compare to the remaining UCC in that class.
If you sell an asset and the proceeds bring the class UCC below zero, the negative balance is called recaptured CCA. This amount is added back to your business income in the year of sale and taxed at your full marginal rate. Recapture commonly happens when an asset is sold for more than its depreciated tax value — for example, selling a vehicle you have claimed significant CCA on over several years.
When you dispose of the last asset in a class and a positive UCC balance remains, you have a terminal loss. Unlike recapture, a terminal loss works in your favour: the remaining UCC balance is fully deductible as a business expense in the year of disposal. Terminal loss does not apply to Class 10.1 vehicles — those are governed by specific rules that limit the deduction in the year of sale.
At Swift Accounting Calgary, we regularly help business owners plan asset disposals to manage recapture exposure — a detail that can significantly affect year-end tax owing if it catches you off guard.
CCA is claimed on Form T2125 (Statement of Business or Professional Activities) for sole proprietors and partnerships, or directly on Schedule 8 of the T2 corporate return. You will need to:
Proper record-keeping is essential. Keep invoices, purchase dates, and asset descriptions for every capital addition. The CRA may request this documentation on audit.
If you operate through a corporation, CCA planning also intersects with the small business deduction, passive income rules, and RDTOH — making it worthwhile to work with a Calgary accounting firm that understands the full picture. Contact Swift Accounting to review your capital asset strategy before year-end.
Book depreciation is what you record in your financial statements for accounting purposes — it can use any method (straight-line, units of production, etc.) and any useful-life estimate. CCA is strictly a tax concept dictated by the CRA. The two figures are almost always different, and only CCA matters when calculating your taxable business income. Many businesses maintain separate schedules for accounting depreciation and CCA.
Yes. CCA is discretionary — you can claim anywhere from $0 up to the maximum allowable amount for each class in a given year. This is a key planning tool. In a year with low income, you might skip CCA to preserve the deduction for a future year when it will offset a higher tax bill. Unused CCA accumulates in the UCC balance and is available in perpetuity.
When you sell the assets of your business, each CCA class must be wound down. Any class where the proceeds exceed the UCC triggers recapture (added to income). Any class where a positive UCC remains after all assets are disposed of generates a terminal loss (deductible from income). If you are selling shares rather than assets, the CCA schedules transfer to the new owner unchanged. The structure of the sale — asset deal vs. share deal — has significant tax implications and should be reviewed by a qualified accountant well before closing.
Yes, but it is being phased out. Assets acquired in 2025 still qualify for enhanced first-year CCA under AII, though the enhanced rate is lower than it was prior to 2024. The phase-out runs through 2027, with standard CCA rules fully reinstated for acquisitions after 2027. For eligible clean energy property and certain manufacturing equipment, enhanced rates may still offer a 100% first-year deduction in 2025 — check with your accountant or refer to the CRA's current guidance to confirm eligibility for specific assets.
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