What is capital cost allowance (CCA) in Canada?

Why you cannot just expense an asset

When you buy something with lasting value, a vehicle, computer, equipment, furniture or a building, the CRA does not let you deduct the whole cost in the year of purchase. Instead you capitalise it and deduct the cost gradually through capital cost allowance, reflecting that the asset earns income over several years.

Genuine consumables and low-cost items are expensed immediately. CCA applies to the durable assets, and the rate at which you can deduct them depends on the class the CRA assigns to that type of asset.

How the classes and rates work

Every depreciable asset falls into a CCA class, each with its own rate applied on a declining balance. Common ones include:

• Class 8 — furniture, fixtures and general equipment, 20%
• Class 10 — most vehicles, 30%
• Class 50 — computer hardware and systems software, 55%
• Class 12 — tools, and software other than systems software, 100%
• Class 1 — buildings, typically 4%

Declining balance means you claim the rate on the remaining (undepreciated) balance each year, so the deduction is largest early and tapers over time.

The half-year rule and recent incentives

In the year you buy an asset, the half-year rule generally limits you to half the normal CCA, on the theory that the asset was only owned for part of the year. Recent federal measures have layered accelerated first-year deductions and, for some assets, immediate expensing on top of the base rules, which can dramatically increase the first-year deduction.

These incentives change over time and by asset type, so the first-year deduction on a given purchase depends on when you bought it and what it is. Timing a major purchase around year-end can shift a large deduction between years.

CCA is optional, and that is the point

Unlike most deductions, you are not required to claim the maximum CCA, or any, in a given year. This optionality is a genuine planning lever. In a low-income year you can claim little or no CCA, preserving the undepreciated balance to deduct in a future year when it shelters income taxed at a higher rate.

Claiming full CCA every year on autopilot can waste deductions against low-taxed income. Matching CCA claims to your income pattern is one of the quieter but more valuable pieces of year-end planning.

Recapture and terminal loss on sale

When you sell an asset, the tax follows what happens to the class balance. If the sale proceeds exceed the remaining balance in the class, you have recapture: the excess CCA you claimed comes back into income. If the class is emptied for less than its remaining balance, you may claim a terminal loss.

This is why disposing of assets, or winding up a business, needs planning: a sale can trigger recapture that turns a quiet year into a taxable one if you are not expecting it.