Write Off 100% of Your Solar Asset in Year One. Then Collect the 30% Credit on Top.
Clean energy equipment qualifies for full first-year capital cost allowance under Class 43.1 — reinstated by Bill C-15’s Productivity Super-Deduction — and the Income Tax Act’s UCC timing rule means the 30% ITC doesn’t reduce your Year-1 deduction. This page shows the exact mechanics your accountant will ask about.
Year-1 recovery on a $500,000 system: $241,000 (48.2%). $150,000 refundable ITC + $91,000 in tax savings from first-year CCA at a 26% combined corporate rate.
What is Class 43.2 and how does it apply to solar and storage?
Class 43.2 of Schedule II to the Income Tax Regulations is the accelerated CCA class (50% declining balance) that covered specified clean energy generation and conservation equipment — including solar PV and battery storage — acquired after February 22, 2005 and before 2025. It became the reference term the industry still searches, but for property acquired in 2025 or later, eligible clean energy equipment now enters Class 43.1. The distinction matters less than it once did: under the immediate expensing rules reinstated by Bill C-15, Class 43.1 clean energy property acquired on or after January 1, 2025 and available for use before 2030 qualifies for a 100% first-year deduction — the strongest depreciation treatment in the Canadian tax code.
What is the difference between Class 43.1 and Class 43.2?
Class 43.1 carries a 30% declining-balance base rate; Class 43.2 carried a 50% rate but was limited to property acquired before 2025. Both cover substantially the same technical equipment list (maintained with NRCan technical guidance): solar PV, wind, stationary electricity storage, and related conversion equipment. For a 2026 acquisition, the operative class is 43.1 — and with 100% immediate expensing in effect, the base rate is academic until the enhanced allowance phases down (75% for property available for use in 2030–2031, 55% in 2032–2033).
How does the Accelerated Investment Incentive work?
The original Accelerated Investment Incentive provided enhanced first-year CCA beginning in 2018 and had largely phased down by 2024. Budget 2025 reversed course: the Productivity Super-Deduction, enacted through Bill C-15, reinstated full immediate expensing for Class 43.1 clean energy equipment, Class 53 manufacturing equipment, and related classes — applying to assets acquired on or after January 1, 2025. The half-year rule is suspended for qualifying property. Practical effect: the entire net capital cost of a commercial solar or storage system is deductible in the year it becomes available for use.
Can I claim both the ITC and Class 43.2 in the same year?
Yes — and the sequencing is the entire point. The 30% Clean Technology ITC (enacted under Bill C-59) and first-year CCA are claimed on the same T2 return for the same taxation year. The Income Tax Act does not force you to net the credit against the depreciable base before computing Year-1 CCA; that adjustment arrives a year later, which is the subject of the next question.
What is the UCC adjustment under paragraph 13(7.1)(e)?
Paragraph 13(7.1)(e) of the Income Tax Act requires the capital cost of depreciable property to be reduced by investment tax credits claimed — but the reduction to Undepreciated Capital Cost (UCC) takes effect in the taxation year following the year the credit is claimed. The consequence: in Year 1, CCA is computed on the un-reduced pool; the $150,000 ITC on a $500,000 system reduces the UCC pool afterward. Where the pool has already been fully expensed, the subsequent-year adjustment can produce an income inclusion (recapture) — which is why the worked example below conservatively computes the Year-1 CCA benefit on the net $350,000 base. Your tax advisor may model the more aggressive gross-base timing; either way, the deferral value belongs to you. This is precisely the kind of sequencing detail we document in every deployment file.
What does the Year 1 balance sheet impact look like on a $500K system?
Worked example — $500,000 commercial solar and storage system, 26% combined corporate rate:
| Item | Amount |
|---|---|
| Eligible capital cost (equipment + installation) | $500,000 |
| Clean Technology ITC — 30%, refundable (Bill C-59) | ($150,000) |
| Depreciable base net of ITC — para. 13(7.1)(e) ITA | $350,000 |
| Year-1 CCA: 100% immediate expensing, Class 43.1 (Bill C-15) | $350,000 deduction |
| Tax value of Year-1 deduction @ 26% | ($91,000) |
| Total Year-1 capital recovery | $241,000 — 48.2% of capital cost |
| Effective net Year-1 cost of a $500,000 asset | $259,000 (51.8%) |
Add the operating line — demand-charge and Global Adjustment savings from the same asset — and the payback conversation changes category. See commercial energy storage for the operating math.
General information, not tax advice. Rates and treatment depend on province, corporate structure, and availability-for-use dates. Confirm with your advisors and the CRA.
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