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R&D November 18, 2025

SR&ED Checklist: 5 Steps to a Successful R&D Tax Claim

Five essential steps to ensure your next SR&ED tax claim is successful. From eligibility assessment to documentation and timely filing.

CI

Chrono Innovation

R&D Tax Credit Experts

Filing SR&ED (Scientific Research and Experimental Development) claims can be complex, but success is achievable with the right approach. Understanding eligibility criteria, maintaining meticulous documentation, and demonstrating technological advancement are the keys to maximizing your R&D tax credits.

This comprehensive checklist outlines five essential steps that every organization should follow to ensure their SR&ED claims are successful.

Step 1: Eligibility Assessment

Before investing time in documentation and filing, verify that your R&D activities actually qualify for SR&ED tax credits.

What Qualifies as SR&ED?

Eligible activities must involve scientific research leading to technological advancement through systematic investigation. This includes:

Eligible Activities:

  • Developing new algorithms or software architectures
  • Creating innovative materials or manufacturing processes
  • Solving technological uncertainties through experimentation
  • Engineering work that advances technical knowledge
  • Experimental development of new products or processes

Ineligible Activities:

  • Routine testing and quality control
  • Market research and sales promotion
  • Style changes and aesthetic design
  • Data collection for non-research purposes
  • Routine software maintenance

Key Questions to Ask

For each project, consider:

  1. Was there technological uncertainty that couldn’t be resolved through standard practices?
  2. Did you follow a systematic approach to investigation?
  3. Did the work result in technological advancement?
  4. Is the advancement applicable beyond your specific project?

Step 2: Documentation Practices

Robust documentation is the foundation of a successful SR&ED claim. The CRA requires evidence that demonstrates the nature and extent of your R&D activities.

What to Document

Project Records:

  • Project objectives and hypotheses
  • Experimental designs and test plans
  • Results of experiments (successes AND failures)
  • Iterations and modifications made
  • Conclusions and lessons learned

Personnel Records:

  • Who worked on each project
  • Their qualifications and roles
  • Time spent on eligible activities
  • Nature of their contributions

Financial Records:

  • Salaries and wages for R&D personnel
  • Materials consumed in R&D
  • Contractor and subcontractor costs
  • Overhead and equipment expenses

Documentation Best Practices

  1. Document in real-time: Create records as work progresses, not retroactively
  2. Date everything: Maintain dated records that establish timelines
  3. Capture failures: Failed experiments are often more valuable than successes for demonstrating technological uncertainty
  4. Be specific: Vague descriptions don’t support claims
  5. Preserve evidence: Keep lab notebooks, code commits, design documents, and meeting notes

Step 3: Expense Identification

Accurate identification and tracking of SR&ED-related expenses is crucial for maximizing your claim while maintaining compliance.

Eligible Expenditures

Personnel Costs:

  • Salaries and wages for employees directly engaged in SR&ED
  • Benefits and employer contributions
  • Bonuses attributable to R&D work

Materials:

  • Raw materials consumed or transformed during R&D
  • Prototype materials
  • Testing supplies

Contractors:

  • Payments to arm’s-length contractors for SR&ED work
  • Technical consultants
  • Testing services

Equipment:

  • Equipment leases for R&D purposes
  • Depreciation on R&D equipment (in some cases)

Allocation Methods

When employees or resources are shared between R&D and other activities:

  • Maintain detailed time records
  • Use consistent allocation methodologies
  • Document the basis for allocations
  • Be prepared to defend your approach

Step 4: Technical Narratives

Clear, well-written technical narratives are essential for explaining your R&D work to CRA reviewers who may not be experts in your field.

Components of a Strong Narrative

Project Objectives: Clearly state what you were trying to achieve and why existing solutions were inadequate.

Technological Uncertainties: Describe the specific technical challenges that couldn’t be resolved through standard engineering or available knowledge.

Methodology: Explain your systematic approach to investigation, including:

  • Hypotheses tested
  • Experiments conducted
  • Variables controlled
  • Analysis methods used

Technological Advancements: Document what new knowledge or capabilities resulted from your work, even if the project wasn’t ultimately successful.

Writing Tips

  • Use clear, non-promotional language
  • Focus on technical content, not business benefits
  • Explain acronyms and technical terms
  • Connect activities to specific uncertainties
  • Describe the iterative nature of your work

Step 5: Timely Filing

SR&ED claims must be filed within specific deadlines to be eligible for tax credits.

Filing Deadlines

Claims must be submitted within 18 months of your fiscal year-end. This deadline is strict—late claims are not accepted.

Filing Requirements

T661 Form: The primary SR&ED claim form requires:

  • Project descriptions
  • Expenditure details
  • Supporting calculations
  • Certification by an authorized person

Financial Validation: Ensure your claim amounts reconcile with:

  • Payroll records
  • Accounts payable
  • General ledger entries
  • Tax filings

Professional Support

Consider engaging SR&ED specialists who can:

  • Review your projects for eligibility
  • Optimize claim amounts
  • Prepare technical narratives
  • Handle CRA inquiries

Professional fees typically range from 10-20% of the claim value on a contingency basis, meaning you only pay if your claim is successful.

Conclusion

Successful SR&ED claims require attention to detail across eligibility, documentation, expenses, technical writing, and filing. By following this checklist, you can maximize your R&D tax credits while minimizing audit risk.

Remember: the effort you invest in proper SR&ED practices pays dividends not just in tax credits, but in better project management, knowledge retention, and strategic decision-making for your R&D organization.

Need help with your SR&ED claims? Contact our R&D tax credit experts to discuss how we can support your next filing.

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CI

About Chrono Innovation

R&D Tax Credit Experts

A passionate technologist at Chrono Innovation, dedicated to sharing knowledge and insights about modern software development practices.

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