The PSD introduced a full first‑year write‑off for qualifying manufacturing and processing (M&P) buildings—meaning businesses can now deduct 100 per cent of a qualifying building’s capital cost in the year it is first used for M&P activities.
This marks a substantial shift from the historical treatment of Class 1 buildings, even when accelerated measures were available. It also gives Canadian manufacturers highly favorable tax treatment for building investments as the immediate expensing dramatically accelerates cost recovery and is expected to be attractive for large M&P capital projects.
Under the new rules, the entire cost of the building can be deducted in the year it becomes available for use, subject to these conditions:
- The buildings must be acquired on or after Nov. 4, 2025.
- It must be used for M&P before 2030.
- At least 90 per cent of its floor space must be dedicated to M&P.
The deduction is scheduled to phase out gradually between 2030 and 2033, declining to a 75 per cent rate for first-year expensing in 2030–31 and to a 55 per cent rate in 2032–33. The timing of acquisitions will be an important consideration for businesses intending to maximize the benefits.
Latest legislative updates
The federal government’s January 2026 draft legislation introduced a series of technical amendments to clarify the application of the PSD. Most measures are retroactive to Nov. 4, 2025.
Notable changes include:
- A new recapture rule for manufacturing buildings claiming immediate expensing. If more than 10 per cent of the building is used to earn non‑manufacturing income within 10 years, it is treated as disposed and reacquired in a separate prescribed class at its undepreciated capital cost.
- Confirmation of a 100 per cent first‑year CCA for eligible manufacturing buildings until 2029 and an explicit prohibition from claiming any other CCA on the same building in the year immediate expensing is taken.
- Immediate expensing will no longer be prorated for short taxation years.
- Taxpayers may elect to place qualifying buildings in separate prescribed classes.
- Strengthening anti‑avoidance rules that deem transactions primarily undertaken to access accelerated CCA or immediate expensing as non-arm’s length.
- Additions or alterations to a manufacturing building may be treated as a separate building for first-year CCA and separate class election purposes.
- Additional clarifications that cover transitional rules for buildings under construction as of Nov. 4, 2025 and a formal definition of an eligible manufacturing building—including new floor‑space and eligibility criteria.
Planning consideration: Businesses must revisit their capital investment plans to effectively adapt to the PSD. This may involve reassessing the timing of planned expenditures such as accelerating the acquisition of qualifying assets, taking advantage of immediate expensing and enhanced cash flow. Reviewing asset classifications—including additions or alterations that may qualify as separate buildings, and considering separate prescribed classes—will be important to confirm eligibility and ensure deductions are claimed correctly.