Canada’s SR&ED program hands back over $4.5 billion a year to companies doing R&D work. Most tech companies qualify. Many either don’t claim or significantly under-claim because the process feels opaque, the documentation is painful, and the rules keep changing.
This guide cuts through the noise. It covers what R&D tax credits are available, who qualifies, how to claim them, and what changed in Budget 2025. If you’re a tech company doing any kind of engineering work in Canada, this is the reference you’ll keep coming back to.
What R&D Tax Credits Exist in Canada
Canada offers R&D tax incentives at two levels: federal and provincial.
At the federal level, the Scientific Research and Experimental Development (SR&ED) program is the big one. It’s the Canadian government’s single largest support program for business R&D, and it provides tax credits on qualifying research expenditures. Depending on your company structure, those credits can be fully refundable, meaning the CRA writes you a cheque even if you owe no tax.
At the provincial level, most provinces offer additional credits that stack on top of the federal program. Quebec, Ontario, British Columbia, and Alberta all have their own programs with varying rates and rules. We’ll cover those later in this guide.
The combined effect is significant. A Canadian-controlled private corporation (CCPC) doing $1 million in qualifying R&D can recover $350,000 or more from federal credits alone, before provincial programs even factor in.
The Federal SR&ED Program
How It Works
SR&ED is an investment tax credit (ITC). You conduct eligible R&D, track your expenditures, file a claim with your tax return, and receive a credit against taxes owed. For qualifying CCPCs, the credit is refundable: you get cash back regardless of your tax liability.
There are two credit rates:
- Enhanced rate: 35% on the first $6 million in qualified expenditures (for eligible CCPCs). This is fully refundable. At the maximum, that’s $2.1 million back in cash.
- Basic rate: 15% on expenditures above the $6 million limit, or for non-CCPC corporations. This is generally non-refundable (applied against taxes owed), though qualifying CCPCs can get 40% of this amount refunded.
The enhanced rate phases out as your company grows. If your prior-year taxable capital was between $15 million and $75 million, the $6 million expenditure limit gradually decreases. Above $75 million, you’re at the basic rate only.
New for Budget 2025: Eligible Canadian public corporations can now access the enhanced 35% rate, subject to the same phase-out thresholds. This was previously restricted to CCPCs. If you’re publicly listed and doing R&D in Canada, this is a material change.
What Expenditures Qualify
SR&ED covers five categories of spending:
Salaries and wages are typically the largest component. This includes gross pay for employees directly performing, supervising, or supporting eligible SR&ED activities, plus employer contributions (CPP, EI, provincial health taxes, workers’ compensation). The employee’s work must happen in Canada.
Materials consumed or transformed during the R&D process qualify. Prototype components, test materials, lab supplies. Materials that end up in a commercial product or are sold don’t count.
Contract expenditures cover payments to arm’s-length subcontractors performing SR&ED on your behalf in Canada. You can claim 80% of these payments.
Overhead can be claimed using either the traditional method (actual overhead costs: rent, utilities, maintenance) or the proxy method, which calculates overhead as 55% of the salary base of employees directly engaged in SR&ED, up to a prescribed limit. Most companies use the proxy method because it’s simpler.
Capital expenditures were removed from the program in 2014 and just restored in Budget 2025. Equipment, machinery, and facilities used directly in R&D now qualify again, as do lease costs for R&D equipment. The asset must be used “all or substantially all” (the CRA interprets this as 90% or more) for SR&ED purposes. This is a significant change for hardware companies, manufacturers, and any tech company with specialized lab or testing equipment.
The Eligibility Test: Three Criteria
Not all engineering work qualifies. The CRA applies a three-part test to determine whether your work constitutes SR&ED:
1. Technological uncertainty. You must be trying to do something where the outcome is genuinely uncertain because existing knowledge, tools, and techniques aren’t sufficient to achieve it. “We didn’t know how to do it” is the core idea. But the uncertainty has to be technological, not business, market, or design uncertainty. Building a feature your competitor already shipped? Probably not SR&ED. Figuring out how to make a real-time data pipeline handle 10x the throughput without blowing your latency budget? That could qualify.
2. Systematic investigation. You can’t just be hacking away and hoping something works. The CRA wants to see a structured process: identify the problem, form a hypothesis, design experiments or tests, record results, draw conclusions. If you’re running A/B tests on model architectures, benchmarking different approaches, or methodically isolating performance bottlenecks, you’re demonstrating systematic investigation. If your “experiment” is just “we tried stuff until it worked,” you’ll have a hard time with the CRA.
3. Technological advancement. The work must generate new knowledge or understanding in a field of technology. This doesn’t mean you need to publish a paper. It means the conclusions you draw from your work advance the state of knowledge, at least within your company. You learned something that wasn’t knowable before you did the work.
All three criteria must be met. A project can involve significant engineering effort, real technical challenge, and excellent results, and still not qualify if the uncertainty was routine rather than technological.
The Filing Process
SR&ED claims are filed using Form T661, which you submit alongside your corporate tax return (T2). The form has two parts: a technical description of each project (what you were trying to achieve, what was uncertain, how you investigated it, and what you found) and a financial section (expenditure totals by category).
Deadlines: You must file within 12 months of your income tax filing deadline. For corporations, that means 18 months from the end of the tax year in which the expenditures were incurred. Miss this deadline and you lose the claim entirely. There are no extensions.
New for 2026: Starting April 1, 2026, the CRA will offer an elective pre-claim approval process. You can submit your R&D project plan for upfront technical validation before incurring costs. If approved, claims submitted through this process get expedited review: 90 days instead of the standard 180. This is a significant change for companies that want certainty before committing R&D budgets.
Documentation: The Part Everyone Gets Wrong
The CRA doesn’t prescribe a specific documentation method. But they’ve been very clear about what they expect: contemporaneous evidence that is dated, specific to the work performed, and created while the work is happening, not reconstructed months later at claim time.
In practice, this means:
- Time records showing who worked on what SR&ED activities, and how long they spent
- Project logs, commit histories, sprint notes, or experiment records that demonstrate the systematic investigation
- Records distinguishing SR&ED work from non-SR&ED work for each person included in the claim
- Technical narratives connecting the work to the three eligibility criteria
The enforcement trend is clear: CRA auditors are asking for more detailed support for claimed hours, with explicit connections between time spent and specific technical uncertainties. Companies relying on rough estimates or after-the-fact reconstruction are getting challenged more frequently.
This is also where most companies leave money on the table. The documentation burden is real, and many teams either don’t track their work in enough detail or can’t face the retroactive effort of compiling it. They end up claiming less than they’re entitled to, or skipping eligible projects entirely.
Provincial R&D Tax Credits
Most provinces offer their own R&D credits that stack on top of the federal SR&ED program. These are claimed through the same process (your SR&ED filing triggers the provincial credit automatically in most cases).
Quebec
Quebec has the most generous provincial R&D incentives, but the landscape just shifted significantly.
SR&ED-linked credits: Quebec is introducing the Research, Innovation, and Commercialization Tax Credit (CRIC), replacing previous measures. The rate is 30% on the first $1 million in eligible expenses above a minimum threshold, then 20% beyond that. It covers salaries, equipment, and 50% of subcontractor costs.
CDAE-to-CDAEIA transition: Quebec’s Tax Credit for the Development of E-Business (CDAE) is being replaced by the CDAEIA, effective for tax years beginning after December 31, 2025. The new program requires “substantial AI integration” in eligible activities. The credit rate remains 30% of eligible salaries, but companies must now demonstrate significant AI or intelligent automation capabilities in their work. The salary cap has been removed, which favors companies employing highly qualified AI professionals. Companies need at least six eligible full-time employees devoting 75% or more of their time to eligible AI-related activities.
Ontario
Ontario offers two credits:
- Ontario Innovation Tax Credit (OITC): 8% refundable credit on eligible SR&ED expenditures incurred in Ontario, up to $3 million annually
- Ontario Business-Research Institute Tax Credit (OBRITC): 20% refundable credit for SR&ED conducted under contract with eligible Ontario research institutes
British Columbia
BC provides a 10% refundable credit on eligible SR&ED expenditures for CCPCs, and a 10% non-refundable credit for other corporations.
Alberta
Alberta’s Innovation Employment Grant (IEG) offers:
- 8% on eligible R&D expenses up to your base level of spending
- 20% on expenses exceeding your base level (rewarding incremental R&D investment)
- Coverage up to $4 million in annual R&D expenses
Stacking the Credits
Federal and provincial credits are calculated separately but can be claimed together. For a CCPC in Ontario doing $1 million in qualifying R&D, the math looks roughly like this:
- Federal enhanced credit: $350,000 (35% of $1M)
- Ontario OITC: $80,000 (8% of $1M)
- Total recovery: $430,000, or 43% of qualifying expenditures
In Quebec, the combined rate can exceed 50% on the first dollar of R&D spending, making it one of the most attractive jurisdictions for R&D globally.
What Changed in Budget 2025
Budget 2025 delivered the most significant SR&ED reforms in over a decade. Here’s a summary:
| Change | Before | After |
|---|---|---|
| Expenditure limit | $3 million | $6 million |
| Maximum refundable credit | $1.05 million | $2.1 million |
| Capital expenditures | Not eligible (since 2014) | Eligible again |
| Public company access to enhanced rate | Not eligible | Now eligible |
| Phase-out threshold | $10M-$50M taxable capital | $15M-$75M taxable capital |
| Pre-claim approval | Not available | Elective process launching April 2026 |
| CRA processing for approved claims | 180 days | 90 days (through pre-claim process) |
These changes apply to taxation years beginning after December 15, 2024. If your fiscal year started after that date, the new rules are already in effect for you.
Common Mistakes That Cost Companies Money
Under-claiming because documentation is too hard. This is the most expensive mistake. Companies leave eligible projects out of their claims because they can’t reconstruct the evidence. The fix is continuous documentation, not annual scrambles.
Confusing technical difficulty with technological uncertainty. Hard work isn’t automatically SR&ED. The CRA cares about whether the outcome was uncertain due to a gap in technological knowledge, not whether it was just difficult or time-consuming. Frame your projects around what you didn’t know, not what was hard.
Not distinguishing SR&ED time from routine work. Every person included in your claim needs time allocated between SR&ED and non-SR&ED activities. Blanket statements like “80% of their time was SR&ED” without supporting evidence will get challenged in a review.
Missing the filing deadline. It sounds basic, but the 18-month window is absolute. There are no extensions, no appeals, no second chances. Miss it by a day and the claim is gone.
Over-relying on consultants without understanding your own claim. SR&ED consultants can be valuable, but at 20-30% of your credit on a contingency basis, the economics deserve scrutiny. More importantly, if your team doesn’t understand what qualifies and how to document it, you’re outsourcing knowledge that should live inside your company.
Getting Started
If you’re a Canadian tech company that hasn’t claimed SR&ED, or suspects you’re under-claiming, here’s where to begin:
Step 1: Identify eligible work. Look at your engineering team’s output over the past fiscal year. Where did they encounter genuine technical uncertainty? Where did they try approaches that might not work? Where did they generate new technical knowledge? Those are your potential SR&ED projects.
Step 2: Assess your documentation. Do you have time records, commit logs, sprint notes, or experiment data that support those projects? The stronger your evidence, the stronger your claim.
Step 3: Understand the math. Calculate your potential credit based on the salaries, materials, and other expenditures associated with eligible work. Even a small team of 5 engineers can generate a significant claim.
Step 4: Decide how to file. You can prepare the claim in-house, work with a consultant, or use an automated platform that integrates with your existing tools. Each approach has tradeoffs in cost, control, and accuracy.
Step 5: File and track. Submit Form T661 with your tax return. Track the claim through the CRA process. If selected for review, respond promptly and completely.
The SR&ED program exists because Canada wants companies doing R&D work here. The money is available. The question is whether you have the documentation infrastructure to capture it.