Scientific Research & Experimental Development (SR&ED)

About SR&ED

The Scientific Research and Experimental Development tax incentive program (SR&ED) is the single largest source of federal government support for R&D in Canada. It provides over $3 billion annually in tax credits to more than 20,000 Canadian businesses. Unlike traditional grants, SR&ED operates as a refundable investment tax credit — you perform eligible R&D work, document it, claim it on your corporate tax return, and the CRA either reduces your taxes or sends you a cash refund.

Budget 2025 brought the largest SR&ED reform in over a decade. The annual expenditure limit doubled from $3M to $6M of eligible expenditures at the enhanced rate, raising the maximum refundable credit for CCPCs from approximately $1.05M to $2.1M per year. Capital expenditures were restored as SR&ED-eligible for the first time since 2012. Eligible Canadian Public Corporations (ECPCs) became eligible for the 35% refundable enhanced rate. A pre-claim approval process launched April 1, 2026.

How SR&ED differs from grants

SR&ED is a tax incentive, not a grant. The differences matter:

• No application form. You file with your annual T2 corporate tax return.
• No competitive review. If your work meets the criteria, you get the credit. There is no funding envelope to deplete.
• Retroactive. Eligible for any tax year within the 18-month filing window. Unclaimed credits past that window are permanently lost.
• Refundable for CCPCs. Cash refund even if you have no taxable income — making it critical for startups.
• Stackable. Other government funding (IRAP, grants) reduces your SR&ED-eligible expenditures, but never disqualifies you.

The three eligibility tests for SR&ED work

Work qualifies as SR&ED if it meets all three of these CRA criteria:

1. Technological uncertainty

The technical outcome of the work could not be predicted in advance from publicly available knowledge. Routine engineering does not qualify; novel problem-solving with unknown outcomes does.

2. Systematic investigation

The work followed a methodical approach — hypotheses, experiments, observations, iterations. Trial-and-error without documented methodology fails this test.

3. Technological advancement

The work aimed to generate new technical knowledge or capabilities. The advancement doesn't need to be revolutionary — even incremental advancement qualifies if it adds to the body of technical knowledge.

Credit rates and refundability

The rate that applies depends on company structure:

• CCPCs (enhanced refundable rate): 35% on the first $6M of eligible expenditures per year — fully refundable in cash even with no taxable income. Maximum annual refund: ~$2.1M.
• CCPCs (base rate, above $6M): 15% non-refundable above the $6M expenditure ceiling.
• Public corporations and non-CCPCs: 15% non-refundable credit.
• Eligible Canadian Public Corporations (ECPCs): 35% refundable on first $6M (new as of Budget 2025).
• Provincial credits: Most provinces offer additional credits — Alberta's IEG (8–20%), Ontario's OBRITC (3.5%), BC's SR&ED tax credit (10%), Quebec's R&D credit (up to 30%), and others.

Combined federal + Alberta IEG recovery for CCPCs can reach 55% of eligible R&D expenditures — the highest blended rate in Canada.

Eligible expenditures

• Salaries and wages of employees directly performing or supporting SR&ED work
• Contractor fees for SR&ED-related technical work (75% of contractor costs for arm's-length, lower for non-arm's-length)
• Materials consumed or transformed during SR&ED work
• Overhead — claimed using the prescribed proxy method (55% of salary base) or the traditional method (actual overhead)
• Capital expenditures — restored as eligible per Budget 2025, with specific rules for shared-use equipment
• Third-party payments to universities, colleges, or specified research institutes

The SR&ED filing process

1. Identify SR&ED work throughout the year — track time, materials, and contractor effort against specific technical uncertainties.
2. Document contemporaneously. Lab notebooks, design documents, code commits, meeting notes. The single most-important documentation discipline.
3. Prepare the technical narrative (T661) describing the project, uncertainty, and approach.
4. Calculate eligible expenditures by category using prescribed methods.
5. File with corporate tax return — typically as part of the T2 package.
6. Standard processing takes 60–120 days. Pre-claim approval (new Apr 2026) targets 90 days.

Stacking SR&ED with grants

SR&ED is the universal stacking partner. Almost any other Canadian funding program — IRAP, RTRI, CanExport, AgriInnovate, Strategic Innovation Fund, provincial programs — stacks with SR&ED. The mechanic:

• Government funding (grants) reduces your SR&ED-eligible expenditures dollar-for-dollar
• But because SR&ED returns 35% of eligible expenditures (for CCPCs), you still net ahead $0.58–$0.65 per grant dollar received
• Combined recovery for a CCPC stacking IRAP (80% of labour) + SR&ED (35% of remaining) typically exceeds 90% of cash R&D costs

See our grant stacking guide for worked examples.

Common SR&ED audit triggers

• Large first-time claims (typically >$500K) without strong contemporaneous documentation
• Year-over-year claim amounts that fluctuate dramatically without explanation
• Software-development claims with no clear technological uncertainty
• Contractor fee claims without supporting agreements
• Mismatched timesheet and payroll data

Clean contemporaneous documentation is the strongest audit defence. Backfilled narratives reconstructed from memory after CRA review starts almost always fail.

How Impact Applications helps with SR&ED

SR&ED claims for complex software, hardware, or process projects benefit from specialist preparation. The technical narrative is the highest-risk document in a claim. Impact Applications' grant writing service includes SR&ED narrative preparation, expenditure schedule construction, and audit defence support. For the worked filing process, see our stacking guide.