If your business is building new technology, improving a product, or solving technical problems, SR & ED could return tens or even hundreds of thousands of dollars in cash or tax savings. The federal Scientific Research and Experimental Development (SR&ED) Tax Incentive Program is Canada’s largest innovation support program, issuing billions in credits each year. Yet many eligible businesses never claim it or underclaim what they’re owed.
This guide explains what SR & ED is, how it works, and what you need to qualify—without the jargon.
SR & ED stands for Scientific Research and Experimental Development. It is a federal tax incentive program run by the Canada Revenue Agency (CRA) that rewards Canadian businesses for doing eligible R&D work in Canada.
SR & ED matters because:
At the federal level, SR & ED allows you to deduct eligible R&D costs from income and earn investment tax credits (ITCs) on top of that.
SR & ED is not a grant. It is a tax credit claimed after your fiscal year-end.
Here’s how it works in practice:
Most Canadian-controlled private corporations (CCPCs) can earn refundable credits, which means cash back even if you owe no tax.
To qualify for SR & ED, your work must aim to resolve a scientific or technological uncertainty.
Eligible activities often include:
The CRA looks for three things:
Routine engineering, market research, and cosmetic changes do not qualify.
For examples, see SR&ED Examples.
SR & ED allows you to claim both labour and non-labour costs tied directly to eligible R&D work.
Common eligible expenses include:
For CCPCs, federal investment tax credits can be worth up to 35% of eligible expenses, depending on income and ownership structure.
In addition to the federal SR & ED program, many provinces offer stackable credits.
Other provinces, such as Ontario and Quebec, also offer R&D credits that can significantly increase your total refund. See SR&ED Credits Ontario for a provincial breakdown.
1. Assuming failed projects don’t qualify
SR & ED is about experimentation, not success. Failed attempts can still be eligible if uncertainty and testing are present.
2. Waiting too long to document work
CRA expects contemporaneous records. Rebuilding documentation months later increases audit risk.
3. Claiming routine work
Bug fixes, standard upgrades, and client-specific customization are usually excluded.
4. Missing the deadline
You must file your SR & ED claim within 18 months of your corporate tax year-end.
Q: Is SR & ED only for tech companies?
No. Manufacturing, agriculture, cleantech, food processing, and construction firms can all qualify if they perform eligible R&D.
Q: Can startups with no revenue claim SR & ED?
Yes. Many CCPC startups receive refundable credits even without taxable income.
Q: How long does CRA take to process SR & ED claims?
Processing times vary. Refundable claims are often reviewed more closely and may take several months.
Q: Do I need an SR & ED consultant?
Not legally, but many businesses use one due to the technical and financial complexity. Learn more in SR&ED Consultants.
Q: Can SR & ED be combined with other funding?
Yes. SR & ED can be stacked with grants and provincial incentives, but some funding reduces eligible costs.
GrantHub tracks 2,500+ active grant programs across Canada — check which ones match your business profile.
SR & ED is one of the most valuable funding tools available to Canadian businesses doing R&D, but eligibility and claim value vary widely. Tools like GrantHub’s eligibility matcher can help you filter programs by province and industry in seconds. If you’re already innovating, the next step is making sure you don’t leave money on the table.
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