IRAP vs SR&ED: The Complete Guide to Stacking Canada's Top R&D Incentives
Can I combine IRAP and SR&ED for the same project in Canada?
The Short Answer: Yes, you can stack NRC IRAP and CRA SR&ED. However, under CRA double-dipping rules, any IRAP funding received for a project reduces the pool of qualifying expenditures you can claim under SR&ED for that same project. Stacking them correctly allows you to offset up to 75-80% of your R&D development payroll.
Disclaimer: Program guidelines and funding pools are subject to change by administering agencies. Information provided is for research and estimation purposes only and does not constitute guaranteed funding approval.
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- Overview: A comprehensive guide covering the latest updates, funding amounts, and application strategies for IRAP vs SR&ED: The Complete Guide to Stacking Canada's Top R&D Incentives.
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Introduction: Canada's R&D Powerhouse Duo
For Canadian technology companies, startups, and advanced manufacturers, the National Research Council's Industrial Research Assistance Program (IRAP) and the Canada Revenue Agency's Scientific Research and Experimental Development (SR&ED) tax incentive are the two most lucrative sources of non-dilutive capital.
However, founders and finance teams frequently confuse the two programs or fear that claiming one disqualifies them from the other. This guide breaks down the core differences between IRAP and SR&ED and outlines a step-by-step strategy to stack them legally to cover up to 75% of your engineering salaries.
Key Takeaway
IRAP is a discretionary, front-ended grant paid out during project milestones. SR&ED is an entitlement-based tax credit claimed retroactively at fiscal year-end. They are not mutually exclusive—they are complementary tools.
Core Differences: IRAP vs. SR&ED
| Feature | NRC IRAP | CRA SR&ED |
|---|---|---|
| Program Type | Discretionary Grant (Competitive) | Legislated Tax Entitlement (Guaranteed if criteria met) |
| Payment Timeline | Upfront / Monthly reimbursement as work is performed | Retroactive claim filed with annual corporate tax return |
| Funding Source | National Research Council (NRC) | Canada Revenue Agency (CRA) |
| Maximum Subsidy | Typically 50% to 80% of internal R&D salaries | Up to 35% refundable federal credit + provincial add-ons |
| Eligible Expenses | Mainly internal technical salaries & contractors | Salaries, materials, subcontracted R&D, and overhead |
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How Stacking Rules Work (Anti-Double-Dipping)
The Canada Revenue Agency prohibits "double-dipping." In practice, this means you cannot get reimbursed twice for the same dollar of R&D expenditure. When you receive government assistance (like an IRAP grant) for a specific R&D project, you must declare that assistance on your CRA Form T661 (SR&ED Claim).
The IRAP grant amount is deducted from your total SR&ED-qualified expenditures. However, because SR&ED covers overheads and non-subsidized portions, you can still claim tax credits on the remaining portion of your payroll.
Example of Stacking Math:
- Total Engineer R&D Payroll: $100,000
- IRAP Grant Received (80% of payroll): $80,000
- Remaining Non-Subsidized Payroll: $20,000
- SR&ED Proxy Overhead Allocation (55% proxy): $55,000
- Adjusted SR&ED Expenditures Pool: $75,000 (Overhead proxy of $55,000 + remaining payroll of $20,000)
- Final Refund (35% Refundable SR&ED): Approximately $26,250
- Total Funding Combined: $106,250 ($80,000 IRAP + $26,250 SR&ED)—meaning your R&D project was co-funded by 100%+ due to the proxy overhead calculations!
Step-by-Step Blueprint to Stack Successfully
- Build a Relationship with an NRC ITA: IRAP is discretionary. You must establish a rapport with a regional Industrial Technology Advisor (ITA) before applying.
- Separate Project Scopes: Work with your accountants to track time logs by specific R&D milestones. Align IRAP tracking with project phases.
- Document Contemporaneous Records: CRA demands technical proof of uncertainty and systematic investigation. Keep git logs, design mockups, and testing data.
- File Retroactive SR&ED Claims: Once your fiscal year ends, file your T661. Deduct any IRAP grants received for those specific projects, and claim the remaining expenditures plus the proxy overhead.
SR&ED Tax Credit Claim Toolkit
We package the complete document toolkit required to prepare your applications. Get instant access to:
- CRA SR&ED Eligibility Pre-Flight Checklist
- Technological Uncertainty Assessment Form
- Eligible R&D Costs Calculator (Excel)
- Contemporaneous Documentation Checklist
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