If your business spends money on research or product development, you could recover a significant portion of those costs through the SR&ED tax credit. The Scientific Research and Experimental Development (SR&ED) Tax Incentive Program is Canada’s largest R&D support program, administered by the Canada Revenue Agency (CRA). It offers federal tax credits worth 15% to 35% of eligible R&D spending, depending on your business type.
This guide explains SR&ED eligibility, required forms, and key filing deadlines—so you can make the most of this important tax incentive.
The Scientific Research and Experimental Development (SR&ED) Tax Incentive Program is a federal program that rewards businesses for doing qualifying R&D work in Canada. It is not a grant you apply for in advance. Instead, you claim it when you file your income tax return.
You may be eligible to claim the SR&ED tax credit if:
CCPCs can access the most generous support, including a refundable investment tax credit (ITC) of up to 35% on eligible expenditures, subject to expenditure limits.
To qualify, your work must meet all three CRA criteria:
Eligible categories include:
Excluded activities often include market research, routine testing, quality control, and cosmetic product changes.
You can claim reasonable and directly related costs, such as:
Only expenditures linked to eligible SR&ED activities can be included.
Claiming SR&ED involves specific CRA forms that must be filed with your tax return.
These forms must be filed together with your income tax return for the year you are claiming SR&ED.
The T661 is where most claims fail. Vague descriptions, missing hypotheses, or unclear experimentation steps can trigger reviews or denials.
For those combining SR&ED with other R&D incentives, GrantHub’s eligibility matcher can help you identify programs by province and industry.
The SR&ED program has a strict filing deadline.
Examples:
There are no extensions under CRA policy. Missing this deadline means you will not receive the credit for that year.
After submission, the CRA may:
Reviews focus on whether your work meets SR&ED definitions and whether expenses are reasonable. Clear records and contemporaneous documentation reduce delays and adjustments.
Describing routine work as R&D
CRA reviewers look for uncertainty and experimentation, not standard development.
Missing the 18-month deadline
Even strong claims are rejected if filed late.
Weak technical narratives on Form T661
Lack of detail is a top reason for reduced claims.
Claiming ineligible expenses
Marketing, sales, and production costs are often disallowed.
Q: Is the SR&ED tax credit refundable?
For CCPCs, a large portion of the SR&ED ITC is refundable, meaning you can receive cash even if you owe no tax. Other corporations generally receive non-refundable credits.
Q: Can startups with no revenue claim SR&ED?
Yes. Many early-stage CCPCs claim SR&ED before generating revenue and receive cash refunds.
Q: How long does a CRA SR&ED review take?
Processing times vary. Straightforward claims may be processed in a few months, while reviewed claims can take longer depending on complexity.
Q: Do provincial SR&ED credits exist?
Yes. Several provinces offer R&D tax credits that can be stacked with federal SR&ED, each with its own rules and forms.
Q: Is SR&ED considered taxable income?
Refundable credits are generally included in income, while non-refundable credits reduce taxes payable. Your accountant should reflect this correctly in your return.
GrantHub tracks hundreds of active grant and tax credit programs across Canada—including SR&ED and provincial R&D incentives—so you can efficiently compare which ones fit your business profile.
Claiming the SR&ED tax credit can provide substantial financial support for R&D-driven businesses. The actual amount you receive depends on your eligible expenditures and the type of business you operate. To maximize your funding opportunities, confirm that your activities and expenses qualify, and plan your documentation early.
If you are also exploring complementary support, see also:
GrantHub can help you connect SR&ED with other funding programs, making it easier to find support that matches your business needs.
Was this article helpful?
Rate it so we can improve our content.
Canada Proactive Disclosure Data
The Canadian government has funded over 400,000 businesses through 1.27 million grants and contributions. Check your eligibility in 60 seconds.