September 14, 2025

Can a Claim Be Reviewed Retroactively?

The majority of SR&ED claims submitted are accepted without being subjected to a detailed review. In these cases, the claim is considered “accepted as filed”. When this occurs, the CRA will send out a letter stating that the claim was accepted, but no determination was made about the eligibility of the work; however, they’ve accepted the claim.

Typically, once an SR&ED claim has been accepted as filed, it is not subject to reviews retroactively. This means that if you file a claim in the next fiscal year, which may be a continuation of prior work and is rejected, it will not automatically trigger a review of your prior claim. With that said, the CRA has outlined several instances where a SR&ED claim that was previously accepted as filed may be sent back for re-assessment (i.e. reviewed and possibly reduced or rejected).

These instances include are:

  • Expenditures claimed in a given fiscal year and are not paid within 180 days of the end of that fiscal year
  • Restatement of a prior year’s income of the company or an associated company’s income
  • Identification of non-arm’s length transactions affecting qualified SR&ED expenditures
  • Fraud or misrepresentation

The items listed above are direct examples taken from CRA SR&ED claim acceptance letters. The first three items in the list all relate to financial variables that can affect the SR&ED return rates and/or have specific financial treatments. The last, fraud or misrepresentation is a criminal offence and may lead to charges over and above the rejection of a prior SR&ED claim.

While the risk of a claim being reassessed after being accepted is extremely small, it is essential to maintain your supporting documentation on both the financial and technical sides. As the SR&ED legislation is a part of the Income Tax Act, claimants are required to keep these records for six years from the end of the fiscal year to which they relate.

Take your funding strategy to the next level

Ready to accelerate the growth of your business? Our expert team is here to help you achieve measurable growth and lasting success.