CCA Class 50. Computer Hardware

Definition

Class 50 is the 55% declining-balance CCA class for "general-purpose electronic data processing equipment and systems software". It was introduced for property acquired after March 18, 2007, superseding Class 45 (45%). Class 52 (100%) temporarily took computers acquired after January 27, 2009 and before February 2011. Desktop and laptop computers, servers, monitors, printers, and the bundled operating system fall into Class 50. Peripheral equipment that operates with the computer is also included. Network switches, routers, hubs and modems are data network infrastructure equipment, which goes in Class 46 (30%), not Class 50.

Key rules

• Rate: 55% declining balance.
• First year: a computer acquired after April 15, 2024 that becomes available for use before 2027 is written off 100% in its first year if it is accelerated investment incentive property (acquired before 2025) or reaccelerated investment incentive property (acquired after 2024). Regulation 1100(2) adds 9/11 of the net additions to the base, and 55% of 20/11 is 100%. A qualifying computer available in 2027 can receive the full 55% as AIIP or RAIIP. Availability from 2028 to 2033 requires RAIIP for that treatment; the incentive ends after 2033. One that does not qualify, typically one bought from the owner or a related company that had claimed CCA on it, gets no uplift: 27.5% of cost under the half-year rule, or 55% where Regulation 1100(2.2) switches that rule off. See AIIP.
• Systems software (operating system, drivers packaged with the machine) is included in Class 50 with the hardware. Application software (business apps, accounting software) goes to Class 12.
• Pooled class: Class 50 assets are generally pooled, subject to any applicable separate-class rules.
• Smartphones and tablets: Class 50 covers electronic equipment that runs an internally stored program the user can alter (the definition of general-purpose electronic data processing equipment in Regulation 1104(2)). CRA has concluded that an iPhone meets that definition and belongs in Class 50 (technical interpretation 2009-0344551I7), A smartphone or tablet that meets that definition and the Class 50 conditions is generally treated as computing equipment; identify the device’s actual functions rather than applying a blanket rule to all telephone equipment. Desk telephones and fax machines stay in Class 8 as electronic communications equipment.
• Fees for ordinary cloud hosting and SaaS access generally pay for services rather than owned Class 50 equipment. Assess purchased software, prepaid services and implementation costs separately.

Example

A corporation with a full calendar tax year buys a laptop with $4,000 tax capital cost and an on-premises server with $12,000 tax capital cost on July 1, 2026. The items are new and bought from an arm's-length vendor after 2024, so they are reaccelerated investment incentive property, and they were acquired after April 15, 2024 and became available for use before 2027. Existing Class 50 UCC opening balance is $3,500. Calendar year end.

1. Additions = $4,000 + $12,000 = $16,000. No dispositions.
2. No half-year rule. Regulation 1100(2) instead adds 9/11 of the net additions to the base: $16,000 × 9/11 = $13,090.91, added to the base, not to the pool.
3. First-year CCA on the additions: ($16,000 + $13,090.91) × 55% = $16,000, the full cost.
4. CCA on prior-year UCC: $3,500 × 55% = $1,925.
5. Total 2026 Class 50 CCA = $17,925.
6. Closing UCC = $3,500 + $16,000 − $17,925 = $1,575.

When the laptop is retired two years later for $500, the lesser of the proceeds and its original cost ($500) comes out of the Class 50 pool. If that takes the pool below zero, the excess is recapture, included in income even though other computers remain in the class. If the class is emptied with a positive balance, the balance is a terminal loss. Because qualifying computers are written off in full, a class with little left in it has almost nothing to absorb sale proceeds.

Common mistakes

• Capitalising SaaS or cloud subscriptions in Class 50. Ordinary recurring service fees are generally current expenses; a capital software acquisition or prepaid contract needs separate treatment.
• Putting the accounting application software in Class 50. Applications go to Class 12.
• Applying the 100% first-year claim to a computer bought from the owner or a related company that had claimed CCA on it. That property does not qualify (Regulation 1104(4.01)). A used computer bought from an unrelated seller usually does qualify.
• Claiming 100% on a computer that becomes available for use after 2026. The special Class 50 factor drops to nil from 2027. Eligible AIIP in 2027, or RAIIP through 2033, gets 55% in its first year; this does not extend the incentive beyond its eligibility window.
• Tracking individual computers as separate UCC pools. Class 50 is pooled; individual tracking is useful for the asset register but not for CCA.

Official sources

CRA class descriptions, enacted first-year factors, and eligibility definitions.

Related concepts

Class 50 is the home for most computer hardware. Related classes include Class 12 for application software and Class 8 for office equipment CRA treats as general equipment, such as photocopiers, fax machines and telephone equipment. CCA mechanics follow CCA overview with the half-year rule and AIIP.