CRA SR&ED audit: a practical and reassuring guide for your business

You have just received a review notice from the Canada Revenue Agency regarding your SR&ED claim. The first reaction is often concern. That is completely understandable.

But here is what companies quickly discover when they go through a CRA SR&ED audit: it is a structured process with clear rules, not an arbitrary judgment. With the right support, the vast majority of solid files withstand review.

This guide explains how an SR&ED tax review works, what you are entitled to do, and how a professional team can help you defend your file.

Why a CRA SR&ED audit does not mean a refusal

An SR&ED audit does not mean your claim is fraudulent or incorrect. The CRA selects files based on several legitimate criteria: a company’s first SR&ED filing, a significant increase in the amount claimed from one year to the next, an industry that is less familiar to reviewers, or a random selection as part of regular compliance activities.

Being selected for review is therefore common and does not imply anything negative about the quality of your file. Companies recovering significant amounts are naturally more likely to face this type of examination.

The steps in a CRA SR&ED audit

Understanding the structure of the process makes it easier to navigate with confidence. Here is how a CRA SR&ED audit typically unfolds, step by step.

Step 1: the review notice

You receive a letter or a call from the CRA informing you that your SR&ED claim has been selected for review. The reviewer identifies themselves as your point of contact and specifies the initial documents required.

Do not respond to that notice without consulting your SR&ED experts. The way you respond from the beginning sets the tone for the entire review.

Step 2: the project presentation meeting

The CRA generally asks for a meeting so you can present the projects included in your claim. This meeting is intended to help the reviewer understand the nature of the work, the technological challenges encountered, and the methods used.

This is a key stage. The way you explain your projects, with the right vocabulary and the right narrative structure, directly influences the reviewer’s assessment. An SR&ED expert can prepare your team for that presentation and ideally participate in it.

Step 3: the documentation request

The reviewer sends you a list of documents to provide. Typical requests include:

• Technical reports and development logs
• Time records for the employees involved
• Contracts and invoices for subcontractors
• Payroll records and financial statements
• Internal exchanges related to the projects, such as emails, tickets, and meeting notes

The quality and completeness of this documentation is often what makes the difference between an accepted file and a reduced one.

Step 4: the technical evaluation

The reviewer, often with the support of a CRA Research and Technology Advisor, assesses whether your activities meet the three fundamental SR&ED criteria: technological advancement, technological uncertainty, and a systematic investigation. This stage can include follow-up exchanges, clarification requests, or site visits in some cases.

Step 5: the proposed adjustment or acceptance

The CRA communicates its position. If your claim is maintained, the process ends there. If the CRA proposes a reduction or partial denial, you have the right to challenge that position before it becomes a final assessment.

Step 6: resolution or objection

If you disagree with the CRA’s position, you can file a formal objection after a notice of assessment is issued. This process is governed by statutory deadlines and requires rigorous technical and tax arguments.

Summary of the steps in an SR&ED audit

This table summarizes the six phases of a CRA SR&ED audit and the key watchpoints at each stage.

Step	Description	Watchpoint
1. Review notice	CRA notification and reviewer assignment	Do not respond without SR&ED expert support
2. Presentation meeting	Explaining the projects to the reviewer	Prepare a structured technical narrative
3. Documentation request	List of documents to provide	Completeness and quality are decisive
4. Technical evaluation	Analysis of SR&ED criteria by the reviewer	Advancement, uncertainty, systematic investigation
5. Proposed adjustment	CRA position is communicated	You can challenge before final assessment
6. Resolution or objection	Acceptance or filing an objection	90-day deadline after assessment

Want to assess the strength of your file before or during a review? Get a free consultation and leave with a clear picture of your situation.

Your rights as a taxpayer during an SR&ED audit

Many businesses do not realize this: you have clear rights throughout the review process, and the CRA must respect them.

You have the right to be represented and to appoint an expert to communicate on your behalf at every stage. You also have the right to information: the reviewer must explain why documents are being requested and keep you informed of the review’s progress. You also have the right to challenge the outcome by filing a notice of objection within 90 days of the assessment date if you disagree with the final decision.

The CRA’s Taxpayer Bill of Rights defines 16 fundamental rights, including the right to professional and courteous service. Knowing those rights strengthens your position in conversations with CRA reviewers.

What weakens an SR&ED file during review

During a CRA SR&ED audit, certain weaknesses come up repeatedly and make files more vulnerable. If you know them in advance, you can prepare for them.

Insufficient or reconstructed documentation. The CRA places major weight on contemporaneous evidence, meaning evidence created while the work was being performed. A development log filled out afterward or time records rebuilt at year-end are warning signs that can lead to a denial.

Project descriptions that are too vague. Generic wording such as “improving system performance” without explaining the specific technological uncertainty and the investigation process does not satisfy the CRA’s criteria. Each project must demonstrate a real technical challenge not already resolved by publicly available knowledge.

Including non-eligible expenses. Maintenance work on existing systems, simple bug fixes, or commercially driven tasks are regularly removed during reviews. Identifying them in advance helps avoid surprise reductions.

To learn more about common pitfalls, read our article on the most costly SR&ED claim errors.

Before the audit: document properly to defend yourself better

The best way to get through a CRA SR&ED audit smoothly is to anticipate documentation requirements from the very beginning of the work. These two practices make the biggest difference:

• Keep a contemporaneous project log with the hypotheses tested, the results obtained, and the obstacles encountered in real time
• Use time-tracking software dedicated to SR&ED projects and retain all relevant technical exchanges such as tickets, threads, and test reports

These two habits can radically improve the strength of a file. For a more complete approach, read our guide to SR&ED documentation.

Conclusion

A CRA SR&ED audit is a serious process, but it is not unmanageable. Companies that face it with solid documentation and expert support generally do well, often without a significant reduction in their claim.

What makes the difference is preparation: before filing, during the review, and in how you communicate with the CRA. Every stage of the process is an opportunity to defend the real value of your innovation work.

Whether you are anticipating a CRA SR&ED audit or are already in the middle of one, speak with an expert today for a free assessment of your file.

FAQ

How long does a CRA SR&ED audit usually take?

The duration of a CRA SR&ED audit varies depending on the complexity of the file and the number of projects under review. A simple file may be resolved in a few weeks, while a more complex one can extend over several months. There is no strict legal deadline for completing a review, but an expert managing communications usually helps accelerate the process.

Can the CRA review multiple years at once during an SR&ED audit?

Yes. The CRA can generally review up to three tax years in most situations, and more in cases involving suspected misrepresentation. In practice, reviews often focus on the most recent year, but the reviewer may ask for documentation from prior years to establish context or compare claiming practices.

What happens if the CRA denies part or all of my SR&ED claim?

If the CRA issues a notice of assessment reducing your claim, you have 90 days to file a notice of objection. You can challenge the decision before the CRA Appeals Division and, if necessary, before the Tax Court of Canada. Support from SR&ED specialists and tax legal advisors is strongly recommended throughout the process.