Capital Cost Allowance: Classes, the Half-Year Rule and Claim Strategy
classes and rates, the half-year rule, recapture, and why the claim is discretionary
Capital cost allowance (CCA) is the deduction the Canadian income tax system allows in place of accounting depreciation. Depreciable property is pooled into numbered classes, each with a prescribed rate — most on a declining-balance basis — and the claim in any year is discretionary: a business may take anything from zero to the maximum, which makes CCA a planning decision rather than a bookkeeping entry.
What is capital cost allowance?
The deduction Canada's income tax system allows in place of book depreciation. A business cannot deduct the cost of depreciable property outright; it adds the cost to a numbered class and deducts a prescribed percentage of the class's declining balance each year.
Corporations claim CCA on Schedule 8 of the T2; unincorporated businesses claim it in the CCA area of form T2125 filed with the T1 return. The accounting records and the tax schedule will disagree by design — amortisation policy is the firm's choice, CCA rates are prescribed.
Which CCA classes matter most in practice?
A handful of classes cover most small-business asset registers. Each class pools assets of a kind and carries its own prescribed rate, almost all on a declining-balance basis.
The rates below are the long-standing statutory rates; confirm the current-year figure and any first-year enhancement against the CRA's published class list before filing.
- Class 1 — most buildings acquired after 1987, at 4% (certain non-residential additions qualify for higher rates).
- Class 8 — furniture, appliances and general-purpose equipment not listed elsewhere, at 20%.
- Class 10 — most motor vehicles and some trailers, at 30%.
- Class 10.1 — passenger vehicles whose cost exceeds the prescribed ceiling; each sits in its own class, with the deductible cost capped at a ceiling the government adjusts periodically.
- Class 50 — general-purpose computer hardware and systems software, at 55%.
- Class 14.1 — goodwill and other intangibles, at 5%.
How do the half-year rule and first-year enhancements work?
In the year an asset is acquired, the half-year rule normally allows CCA on only half of the net addition to the class. Since 2018, the Accelerated Investment Incentive has enhanced first-year claims for eligible property and suspended the half-year rule — with the enhancement phasing down over time.
Because the first-year treatment depends on when the property became available for use and on rules that phase out on a legislated schedule, state the structure in the workpapers and pull the current-year percentage from the CRA's guidance at filing time rather than memorising a multiplier.
What are recapture and terminal loss?
The settling-up rules on disposal. Sale proceeds, up to original cost, reduce the class's undepreciated capital cost. A negative balance is recaptured into income — the system claws back deductions that exceeded the asset's real decline. A positive balance left in an empty class is deducted as a terminal loss.
The mechanics reward clean asset registers. A pool that silently carries disposed assets overstates the balance and stores up a recapture surprise; a firm that reconciles the register to the schedule each year-end can price the tax effect of a sale before the client signs it.
Why is the CCA claim a planning decision?
Because the claim is optional, from zero up to the maximum, every year. An unclaimed amount is not lost — the pool simply carries forward — so the real question is when the deduction is worth most.
In a loss year, or a year already fully sheltered, claiming maximum CCA can waste a deduction that would offset high-rate income later. Holding the claim back preserves the pool. The decision belongs in year-end planning, next to dividend-versus-salary and instalment questions, not in a software default.
Where is CCA claimed, and on what deadline?
Wherever the business reports its income. Corporations claim CCA with the T2, due six months after fiscal year-end; sole proprietors and partners claim it on form T2125 with the T1, on the personal filing clocks. The deadline that matters is therefore the client's return deadline.
| Filing | Applies to | Filing deadline | Payment | If it is late |
|---|---|---|---|---|
| T2 corporation income tax return | Every resident corporation, every tax year, even with no tax payable. | File within six months after the end of the corporation's tax year. Where the year-end is the last day of a month, the return is due the last day of the sixth following month; otherwise it is due the same day of the sixth month. | The balance of tax is due earlier than the return: generally two months after year-end, or three months for eligible Canadian-controlled private corporations claiming the small business deduction. Filing on time is not paying on time. | 5% of the unpaid tax plus 1% per complete month late, to a maximum of 12 months. Repeated failure raises it to 10% plus 2% per month for up to 20 months. |
| T1 for self-employed individuals | Individuals with self-employment income and their spouses or common-law partners. | File by June 15. The extended filing date applies to the return only. | Any balance owing is still due April 30. Interest accrues from May 1 regardless of the June filing window — this is the single most-missed rule in Canadian personal tax. | The same 5% plus 1% per month structure applies, computed from the June 15 filing date; interest runs from the April 30 payment date. |
How firms keep CCA schedules consistent year over year
Continuity is the whole game: this year's opening balance must equal last year's closing balance, class by class. Firms make that automatic by treating the CCA schedule as a standing year-end task rather than a fresh reconstruction each season.
In SpidNums, the client's fiscal year-end drives the timing — Reminders raises year-end financial statement work a month before each year-end, and the CCA and asset-register steps sit as ordered tasks on that project in Task Master, with a named owner. The schedule then arrives at the filing deadline reconciled instead of rebuilt.
Frequently asked questions
What is capital cost allowance?
Capital cost allowance (CCA) is the depreciation deduction Canada's income tax system allows on depreciable property. Assets are pooled into numbered classes, each with a prescribed rate, and the deduction is calculated on the declining balance of each class. CCA replaces book amortisation for tax purposes — the accounting figure is added back and CCA is deducted instead.
What is the half-year rule for CCA?
The half-year rule limits the CCA claim in the year of acquisition to half of the net addition to the class, as if the asset were bought mid-year. First-year enhancements under the Accelerated Investment Incentive have suspended the rule for eligible property since 2018, with the enhancement phasing down — check the CRA's current-year treatment before filing.
Do you have to claim CCA every year?
No. CCA is discretionary: a business may claim anything from zero to the maximum for each class, each year. Unclaimed amounts are not lost — the undepreciated capital cost simply carries forward. Firms commonly claim less than the maximum in loss years or low-income years so the deduction offsets higher-rate income later.
What is recapture of CCA?
Recapture is income that arises when disposal proceeds credited to a CCA class exceed the class's remaining undepreciated capital cost. The negative balance is added back to income, reversing deductions that turned out to exceed the asset's actual decline in value. Its mirror image is the terminal loss: a positive balance left when a class is emptied is deductible.
What CCA class do computers fall into?
General-purpose computer hardware and systems software fall into Class 50, with a 55% declining-balance rate. Furniture and most general equipment fall into Class 8 at 20%, and most motor vehicles into Class 10 at 30%. Class assignments and rates are set by regulation — the CRA publishes the full class list, which is the reference to check for unusual assets.
Related guides
How firms run this
Turn these dates into tickets.
SpidNums generates the work from each client's cadence and year-end, then ranks it by proximity.