Accelerated Investment Incentive Property (AIIP)
AIIP replaced the half-year rule with a 1.5× first-year CCA for most depreciable property, and is being phased out between 2024 and 2027.
Definition
Accelerated Investment Incentive Property (AIIP) is a temporary CCA regime introduced in the 2018 Fall Economic Statement. For qualifying property, the half-year rule is suspended and the first-year CCA is increased to 1.5× the normal declining-balance amount. The policy was designed to encourage business investment. AIIP is phasing out: full 1.5× treatment applied to property available for use before 2024, a reduced enhancement applies from 2024 to the end of 2026, and the program concludes at the end of 2027 (confirm final 2026 and 2027 regulations annually, as phase-out percentages are set in Regulations 1100(2.02)).
Key rules
- To be AIIP, the property must (per Regulations 1104(4)):
- Be acquired after November 20, 2018.
- Be new to the taxpayer (or acquired from an arm's-length person who never used it, or never claimed CCA).
- Become available for use before 2028.
- Not be excluded property (property previously owned or used by the taxpayer or a non-arm's-length person, and property that was deductible under immediate expensing or the manufacturing and processing 100% rule, which are separate incentives).
- Phase-out schedule as originally enacted (confirm current Regulation 1100(2.02) for each class before filing):
- Specific manufacturing and processing (class 53) and clean-energy (classes 43.1, 43.2) assets received a separate 100% first-year deduction; that sub-regime also phases out on the same schedule.
- Short tax years still pro-rate the enhanced CCA by days over 365.
- Recapture and terminal loss rules continue to apply normally.
AIIP does not increase total lifetime CCA. It front-loads the deduction. Over the life of the asset, total CCA equals capital cost less salvage value recognised at disposition.
Example
A BC corporation buys a $20,000 server in March 2026 that qualifies as AIIP in class 50 (55% rate). It is the only class 50 asset.
- Under normal rules with the half-year rule: CCA = ($20,000 × 50%) × 55% = $5,500.
- Under 2026 AIIP (1.25× enhancement, no half-year rule): CCA = $20,000 × 55% × 1.25 = $13,750.
- Closing UCC = $20,000 − $13,750 = $6,250.
- In year 2, CCA = $6,250 × 55% = $3,437.50 (ordinary declining balance).
The front-loaded deduction reduces 2026 tax payable, accepting lower deductions in later years.
Common mistakes
- Claiming AIIP on a used asset acquired from a related party. AIIP requires "new" to the taxpayer in the sense of s.1104(4), with limited exceptions.
- Layering AIIP on top of the half-year rule. AIIP replaces the half-year rule for the first year; do not reduce the base by 50% and then multiply by 1.25.
- Applying AIIP to property that also qualifies for immediate expensing. A CCPC can only claim one of the incentives; immediate expensing is usually more valuable if the $1.5M cap applies.
- Using an outdated phase-out percentage. Check Regulation 1100(2.02) for each available-for-use year.
- Including AIIP property that became available for use after December 31, 2027.
Related concepts
AIIP is a temporary override to the . It interacts with (CCPCs choose between them for overlapping property) and affects the CCA computation for every class, including and . See for the mechanics.
Authority
- Income Tax Regulations 1100(2) to 1100(2.02), 1104(4)
- Department of Finance 2018 Fall Economic Statement, Accelerated Investment Incentive
- CRA Folio S3-F4-C1, General Discussion of Capital Cost Allowance
See also
Related entries
Capital Cost Allowance Overview
Capital Cost Allowance (CCA) is the tax version of depreciation: a declining-balance (or occasionally straight-line) deduction that spreads the cost of a capital asset across multiple tax years.
Half-Year Rule
In the year an asset is acquired, Regulation 1100(2) reduces the CCA base for net additions by 50% so the first-year deduction is halved.
Immediate Expensing ($1.5M)
Immediate expensing lets a CCPC write off up to $1.5M per year of eligible depreciable property in the year it becomes available for use, instead of claiming standard CCA.
CCA Class 50. Computer Hardware
Class 50 is the 55% declining-balance pool for general-purpose electronic data processing equipment and systems software acquired after March 18, 2007.
CCA Class 8. Furniture and Equipment
Class 8 is a 20% declining-balance pool for furniture, fixtures, general equipment, and photocopiers that do not belong in another specific class.
This entry is for general reference. It does not constitute professional tax advice. Consult a qualified Canadian accountant for your specific situation.

