SR&ED Knowledge Hub
Free SR&ED resources for Canadian businesses: eligibility guides, T661 form references, filing deadline calculators, and documentation checklists.
All resources
SR&ED BasicsWhat is SR&ED?
Canada's primary R&D tax incentive explained — what qualifies, how credits work, and who can claim.
SR&ED BasicsWho may qualify?
Industries, criteria, and common misconceptions about SR&ED eligibility for Canadian businesses.
Filing & DocumentationWhat is Form T661?
The CRA's official SR&ED expenditures claim form — key sections and what each part requires.
Filing & DocumentationDocumentation guide
What contemporaneous evidence CRA expects and how to organize it for a defensible claim.
PlatformDIY vs. Consultant
Compare fixed-fee software with traditional percentage-based SR&ED consultants.
Filing & DocumentationFiling deadlines
Critical SR&ED deadlines — when to file, what happens if you miss them, and how to track.
SR&ED BasicsProvincial credits
Ontario, Quebec, BC, and other provincial SR&ED supplements explained.
Filing & DocumentationCommon mistakes
The most frequent errors that weaken or disqualify SR&ED claims — and how to avoid them.
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