The Federal Clean Technology Investment Tax Credit in Canada (30% Refundable) — 2026 Guide

The Clean Tech ITC is a refundable federal tax credit equal to 30% of the capital cost of eligible clean-technology property that a taxable Canadian corporation acquires and puts in service. Refundable means CRA will refund the credit even if the corporation had no tax payable in the year — it doesn't sit as a carry-forward, it lands in the bank account with the next quarterly refund cycle.

The 30% rate holds through the end of 2033, drops to 15% in 2034, and disappears entirely in 2035. Skipping the labour conditions (below) drops those rates to 20% and 5% respectively.

The Clean Tech ITC covers property described in Class 43.1 or 43.2 of Schedule II to the Canadian Income Tax Regulations. That includes:

• Solar PV equipment (panels, inverters, racking, wiring, monitoring) — full credit
• Battery storage equipment (BESS units, PCS inverters, control systems) — full credit
• Small-scale hydro, wind, and geothermal equipment — full credit
• Concentrated solar power (CSP), including thermal collectors — full credit
• Air-source and ground-source heat pumps used in a business — full credit
• Non-fossil-fired industrial heat equipment — full credit

Explicitly not eligible: batteries used primarily for on-site backup of a fossil-fuel generation system, active or passive solar thermal for residential owner-occupied homes, and any property leased to a foreign entity. Grid-connection equipment (transformers, protective relays, service upgrades) is eligible when it's dedicated to the qualifying system, not shared with existing loads.

Corporations that DO qualify

• Taxable Canadian corporations — including CCPCs (Canadian-controlled private corporations). Full 30% credit.
• Real estate investment trusts (REITs) — eligible on qualifying property.
• Mutual fund trusts — eligible if the property is used to earn business income.
• Corporate partners in partnerships — eligible on their proportionate share.

Who does NOT qualify (and where they should look instead)

• Sole proprietors and unincorporated family partnerships — not eligible. On a $200k system that's a $60k miss; incorporating before signing is usually worth the accounting cost.
• Homeowners on principal residence — not eligible. See provincial residential rebates (Nova Scotia SolarHomes, Manitoba EnerGuide, etc.).
• Non-taxable Crown corporations, municipalities, and tax-exempt entities — not eligible for Clean Tech ITC but eligible for the parallel Clean Electricity ITC at 15% (introduced with Budget 2024).
• First Nations governments — a separate 15% Clean Electricity ITC applies via Indigenous Services Canada partnerships.

To claim the full 30% (or 15% in the phase-down year), the installation must satisfy two labour conditions on the site. Miss either and the credit drops by 10 percentage points across the board.

Condition 1 — prevailing wages

All covered workers (electricians, welders, mechanical trades) must be paid at least the prevailing wage for their trade + location, as published by Employment and Social Development Canada (ESDC) via the National Wage Grid. Union agreements automatically satisfy this in almost every case; non-union installers need documented pay rates on file.

Condition 2 — apprentice hours

At least 10% of total covered labour hours on the installation must be performed by registered Red Seal apprentices. Most Canadian commercial installers already meet this on unionized or unionized-adjacent jobs. Ask for written confirmation, and require a copy of the apprentice-hour log at commissioning.

Example 1 — 100 kW farm rooftop, Ontario incorporated dairy

150-cow dairy operating as a CCPC. Installs a 100 kW rooftop system for $185,000 turnkey. Full labour conditions met.

Example 2 — 500 kW warehouse rooftop, Quebec CCPC

Refrigerated-warehouse operator, incorporated. Installs 500 kW rooftop plus a 300 kWh battery for peak-shaving. $1.05M total system cost.

Example 3 — 2 MW manufacturing, Alberta CCPC

Automotive-parts manufacturer, incorporated. 2 MW ground-mount adjacent to the plant, feeding directly into the plant's 4160V service via dedicated transformer. $3.1M project cost.

Class 43.1 accelerated capital cost allowance

Class 43.1 assets (including solar) get accelerated depreciation — 30% declining balance in the first year, dropping in later years. This is separate from the ITC; you claim both. The 100% first-year write-off available under the Accelerated Investment Incentive phased out for property acquired after 2023, but the base 30% first-year CCA under Class 43.1 remains.

Provincial stacking

• Quebec — Hydro-Québec Solutions efficaces covers up to 40% of eligible cost on top of the ITC (max $40M project). Best provincial stack in Canada.
• PEI — Agriculture Energy Systems Pilot Program covers 50% to $75,000 for farm operations.
• Nova Scotia — SolarHomes business rebate on request, plus efficiency Nova Scotia energy studies.
• Manitoba — Commercial Solar Rebate up to $25,000, stacks with ITC.
• BC — BC Hydro business rebate up to $10,000 + $10,000 battery adder.
• Ontario, Saskatchewan, Alberta, Atlantic Canada — no direct capital rebate, but each has favourable operational metering.

GST/HST treatment

The ITC applies to the pre-GST/HST cost of eligible equipment. GST/HST is separately recoverable by the corporation via input tax credits, so it's a wash — but budget for the cashflow gap between paying GST/HST on install and getting it back on your next return.

1. Confirm the property is 'clean technology property' — Class 43.1 or 43.2 of Schedule II. If your accountant hasn't handled a Clean Tech ITC claim yet, hand them CRA Income Tax Folio S1-F5-C1.
2. Document labour compliance before commissioning — apprentice-hour log, prevailing-wage attestation from every trade on site. Keep for 6 years post-claim.
3. File Form T661 (SR&ED Expenditures) or its Clean Tech ITC equivalent (Form T2038 for corporations, filed with the T2). CRA typically pays refundable credits within 60 days of filing.
4. For a partnership, each corporate partner claims their proportionate share on their own T2.
5. The provincial ITC (if any) is claimed on the equivalent provincial form — Quebec has its own credit for corporations subject to Quebec income tax.

Post-ITC payback on typical Canadian commercial solar in 2026 lands at 5–10 years depending on province, rate class, and demand-charge exposure. IRR over 25 years lands 12–19%. Compare that to pre-ITC payback of 12–18 years — the ITC roughly halves the payback period.