CRA SR&ED audits are no fun at all. Anyone who has been through the process (or has heard a horror story) knows how time-consuming, painful and frustrating they can be… So, why not take a second to understand why they happen and how to avoid them?
That is what this blog covers. Everything that will and won’t trigger a CRA SR&ED audit/review for companies claiming SR&ED tax credits in Canada. Let’s dive in.
What is a CRA SR&ED Audit/Review
First of all, we should probably understand what exactly we mean by a CRA Audit. It is worth noting that the CRA uses the term “SR&ED review” rather than “SR&ED audit”, but they are in fact the same thing and can be used interchangeably; we will use the term review.
When a company files an SR&ED claim, there is always a chance that the claim may be selected for review. This happens when the CRA requires more information and detail before making a decision about the claim’s conformity with the SR&ED policy.
The review can involve further questions about the technical merit of the SR&ED project to determine if it is truly eligible, and/or it can involve a further investigation into the reported expenses to make sure they meet the SR&ED criteria. This is done with the CRA’s research and technology advisor (RTA), and/or a financial reviewer (FR), respectively.
SR&ED reviews can happen to any company, whether that be a first-time claimant or a company that has been claiming for many, many years. Reviews are completely normal, and all companies should expect to go through the process every few years, but there are some factors that can trigger a review.
This blog: How to Win with an SR&ED Audit in 2025 covers the basics of what to do in case of a review, but this blog is about how to do your best to avoid them.
Triggers for an SR&ED CRA Review
Although the CRA does randomly select claims for review, there are some factors that can increase your review risk.
Filing an Amended Tax Return
Submitting SR&ED with your filing of your corporate tax return (a “joint filing”) reduces the chances that the CRA investigates further. This is motivation to stay up to date and current with your SR&ED filings. If you have to file an amended corporate tax return, it is not a guarantee that it will be reviewed, but it does increase the odds by up to 40%.
Large or Sudden Claim Increases
If you have an unexplainable increase in your SR&ED claim (i.e. $100K to $200K with the same number of staff on payroll, same number of contractors, etc.), that is a huge red flag. If the only thing changing is the percentage of an employee/contractor’s time that is eligible for SR&ED, that typically warrants further investigation. It might be completely valid if the first year of business you were in growth mode and had very few eligible expenses, and then year 2 was a lot more technical problem solving, but it likely will need to be explained to the CRA.
Questionable Project Eligibility
In the past few years, the CRA has put more focus on ensuring the technical merit of projects, rather than penny-counting expenses. The most important aspect of any SR&ED project ($5K or $500K) is the technical uncertainty of the project, and the steps taken to address that uncertainty. If the technical descriptions of the project do not adequately show that there was a clear uncertainty, addressed through systematic investigation, it is likely the CRA will need to ask further questions. If the claim describes the work to be routine, maintenance, standard investigation, normal operating procedure, etc., the CRA will likely come asking questions.
Unbalanced Expenses
The CRA wants to see a full picture of the costs associated with the technical challenges faced. So if expenses don’t “add up” this can raise red flags. For example, a manufacturing company claiming $100K in salaries for testing, but not claiming any material costs for that testing.
High Contractor Expenses & Low Salaries
Having disproportionately high contractor costs, relative to low or no salary costs, can be a red flag for the CRA. It is also concerning to the CRA if year-over-year contractor costs spike significantly.
Claiming 100% of Salaries
The risk of review increases if multiple employees are documented as spending the vast majority of their time on SR&ED eligible activities. Founders (or business owners) can only claim 75% of their time as SR&ED eligible, but if that percentage threshold is being reached for some or all of the founders, the claim will likely raise some red flags. Any good business requires technical and non-technical employees, and the CRA isn’t blind to that.
Very Large SR&ED Claim
This one really makes sense. The CRA doesn’t want to give $1M+ without asking a few questions. Large claims, typically above the $1M threshold, will be at a much higher risk of being reviewed.
Complicated Grant Funding
If a company also receives several complex, stacking grants, the CRA might be more motivated to take a closer look. This is to make sure that there is no double-dipping on government funding. Keep clear records of all government funding and involve an expert to ensure you are meeting all requirements for each funding source.
Being Unlucky…
All jokes aside, claims are often randomly selected based on factors that the CRA has never (and I assume will never) make public. Any time a SR&ED claim is submitted, there is a risk of a review, and it might be for none of the above reasons.
What Does NOT Trigger a SR&ED Review
There are many rumours out there about what triggers an SR&ED claim review, many of which are completely false.
Being in a Net-loss Position
There is no data or evidence to support the CRA increasing (or decreasing) reviews for companies based on revenue or financial position. Those in a net-loss situation are no more likely to be reviewed.
Working with a Small SR&ED Consultant vs a Large Firm
Frankly, if it ever came out that the CRA was favouring claims submitted by one consulting firm over another, the CRA would be in deep trouble. There has never been any evidence to suggest that working with one of the Big 4 accounting firms to submit your SR&ED lowers your review risk. Work with a consultant who aligns with your needs and is experienced in managing SR&ED claims. More on this here: How to Choose a SR&ED Consultant.
Small Claims
The size of the claim, presuming it is not larger than ~$1M, does not have an impact on the likelihood of review. We often get asked if smaller claims ($20K-$50K) increase review risk, and there is no evidence to support that.
Tips and Tricks – SR&ED Reviews
The best review is no review, so stay vigilant about tracking, documenting and recording all technical problems, testing done and lessons learned.
Work with a consultant to file your SR&ED claim, as it is our job to know all of the nuances of positioning projects to reduce your review risk. In case of an audit, consultants are also able to provide essential support and act as a middleman to ensure your claim gets approved.
What to Do in Case of SR&ED Audit
Garron has written a full blog on how to be prepared and come out unscathed from an SR&ED audit: How to Win in a SR&ED Audit in 2025. This blog breaks down everything you need to know to make sure you get every dollar you claimed in case of an SR&ED review.
Working with an SR&ED consultant like GrowWise means you get support and assistance in case of an SR&ED audit/review. At GrowWise, we provide complete support in case of a review, and we will be there with you to fight for every dollar you deserve.
Conclusion
Although there are many things to avoid, you likely will eventually face an SR&ED review. According to the CRA’s most recent data, in the April 1, 2024, to March 31, 2025 fiscal year, 90% of SR&ED claims were accepted as filed, 6% were accepted after modifications during a review, and 4% were denied.
Unsure if your SR&ED claim is at high audit risk? Reach out to us today at [email protected] to review your claim and ensure you aren’t raising any CRA red flags.
When you work with GrowWise to submit your SR&ED claim, our intelligent Supervised-AI approach ensures CRA compliance and reduces your risk of audit. Let’s work together to get your company SR&ED funding without the headache.