Everything you need to now about eligible SR&ED expenses - ABGi

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Everything you need to now about eligible SR&ED expenses

Introduction 

The Scientific Research and Experimental Development (SR&ED) program is one of the most advantageous tax incentives in Canada. It allows businesses to recover a significant portion of their research and development (R&D) expenses.

However, to fully benefit from the program, it’s essential to clearly understand which expenses are eligible. A misinterpretation or omission can lead to a lower refund—or even a rejected claim. This article provides a clear overview of the costs you can include in an SR&ED claim, with concrete examples to help you eliminate any doubts.

What is an eligible SR&ED expense? 

According to the Canada Revenue Agency (CRA), an eligible SR&ED expense is one that is incurred directly for conducting scientific research or experimental development activities. It must be reasonable, well-documented, and linked to an eligible activity.

It is crucial to distinguish:

  • Eligible expenses (related to experimental R&D),
  • From ineligible expenses, such as marketing or customer support activities.

Link to eligible activities: Only activities aimed at resolving scientific or technological uncertainty can justify these expenses.

Main categories of eligible expenses

Here are the main categories you can include in your SR&ED claim:

Salaries and wages

Salaries often represent the largest share of a claim.

  • Criteria: Employees must work directly on eligible activities (design, experimentation, prototyping, etc.).
  • Examples of eligible roles: Engineer, software developer, lab technician.

Concrete example:
An SME allocates a developer 80% of the time to a project optimizing a data analysis algorithm. 80% of their annual salary can be claimed under SR&ED.

Materials consumed

These are materials used during experimental projects.

  • Examples: Raw materials, electronic components, prototyping parts.
  • Requirements: The materials must be consumed or irreversibly transformed. They must not be resold.

Subcontracting / third-party contracts

Work entrusted to external providers may also be eligible, under certain conditions.

Requirements: The subcontractor must perform R&D work, in Canada, on behalf of the company.

Concrete example:
A company hires an engineering firm to design and test a new manufacturing process. If the contract is properly documented and related to SR&ED, the expense is eligible.

Overhead and support costs (traditional method)

If you choose the traditional method, you can include:

  • Rent and utilities (electricity, water),
  • IT equipment used for R&D,
  • Office supplies related to research activities.

/!\ Note: These costs are not individually detailed if you use the proxy method (see next section).

Ineligible expenses (to avoid)

Some expenses are systematically excluded from SR&ED claims:

  • Marketing or graphic design activities,
  • Costs related to general administration or business management,
  • Technical support or customer service,
  • Internal training or non-technical documentation.

These do not aim to resolve technological uncertainty and therefore cannot be reimbursed through the SR&ED program.

Which calculation method should you choose? (proxy vs. traditional)

There are two methods for calculating your SR&ED credits:

MethodEligible ExpensesAdvantages Drawbacks
Proxy Salaries + flat-rate uplift (55%Easy to apply, less documentation needed Less precise, no direct costs included
TraditionalAll detailed expenses (salaries, materials, rent…)  More tailored, potential for higher return if well documented Requires more supporting documentation

Tip:

  • For SMEs, the proxy method is often quicker.
  • For large companies or complex projects, the traditional method can help maximize the credit.

    Practical tips for properly documenting your expenses

    Maintaining thorough records is key to a successful claim. Here are some best practices:

    • Accurate timesheets for each employee involved.
    • Clear technical justifications for the activities.
    • Invoices and contracts with subcontractors.
    • Monthly tracking of expenses by category.

    Useful tools:

    • Excel spreadsheets or specialized tools (ERP, project tracking software),
    • Time tracking software with SR&ED tagging options.

      Conclusion 

      Understanding and identifying eligible SR&ED expenses is essential for maximizing your tax returns and avoiding errors.

      Summary:

      • Only expenses directly tied to R&D are eligible.
      • Salaries, materials, subcontracting, and overhead costs can be included depending on the chosen method.
      • Proper documentation is crucial to justify every expense.

      Need help preparing your SR&ED claim?
      Our experts can conduct an audit of your projects to identify eligible expenses and secure your refund.

      Contact ABGi Canada today.

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