Stacking SR&ED and CDAE-IA on the same IT project
Learn how one IT project may generate both SR&ED and CDAE-IA tax credits without claiming the same eligible expenditure twice.

A technology company developing a software platform that integrates artificial intelligence may assume it has to choose between two distinct tax credits. In fact, SR&ED and CDAE-IA may both apply to the same project, provided the expenditures attributed to each program are clearly separated.
This article explains how the two credits complement each other, how to structure one IT project to benefit from both and what precautions prevent the same expenditure from being claimed twice.
How stacking SR&ED and CDAE-IA works
SR&ED and CDAE-IA follow different eligibility principles. The federal SR&ED credit rewards work that addresses technological uncertainty—a problem whose solution was not known in advance and required an experimental process. CDAE-IA is a Quebec tax credit for information technology companies that significantly integrate artificial intelligence into electronic business solutions.
These eligibility tests are not mutually exclusive. One project may contain a technically uncertain research component and a complex software development component that integrates AI. The underlying rule is straightforward but demanding in practice: the same dollar of salary cannot be claimed once under SR&ED and again under CDAE-IA.
Two distinct eligibility tests
The SR&ED test focuses on the process: hypotheses, testing and analysis of the results. The CDAE-IA test focuses more heavily on the nature of the business and the integration of AI into its solutions, with specific requirements for revenue composition and staffing. A company may satisfy both tests at the same time, with each applying to a different portion of the work.
For CDAE-IA, the company must generally earn at least 75% of its revenue from information technology activities, including a significant share from software development or publishing. Eligible employees must also devote most of their time—normally at least 75%—to duties directly related to the AI integration project. Otherwise, their salaries cannot be included in the credit calculation.
An example of SR&ED and CDAE-IA applying to one project
Consider a company developing a management platform with an artificial intelligence module. The team faces genuine technological uncertainty while developing an anomaly-detection algorithm, which may qualify for SR&ED. At the same time, another part of the team works on the complex integration of AI functionality into the electronic business interface, work that may align more closely with CDAE-IA.
In this example, SR&ED and CDAE-IA can coexist within the same project if the hours and salaries of each employee group are tracked separately by task and project component instead of being recorded only against the project as a whole.
| Element | SR&ED | CDAE-IA |
|---|---|---|
| Administered by | Federal government (Canada Revenue Agency) | Quebec government |
| Primary test | Technological uncertainty | Significant integration of AI into an IT solution |
| Main rate | Up to 35% refundable for an eligible CCPC | 30% of eligible salaries |
| Expenditure limit | Enhanced-rate annual limit increased to $6 million | No salary limit per employee |
| Industry scope | All industries | Information technology companies |
| Minimum staffing requirement | No minimum number of employees | At least six eligible full-time employees |
Best practices for an IT funding stack
An effective IT funding strategy separates tasks clearly during project planning, not after the fact when the tax returns are being prepared. The following practices are particularly useful:
- Divide the project into distinct components based on the nature of the technical or software work.
- Track time by employee and project component instead of only by the overall project.
- Document technological uncertainty separately from the complexity of AI integration.
- Involve technical leaders from the outset to avoid reconstructing the work after year-end.
- Maintain a clear audit trail showing that no expenditure has been counted twice.
An initial assessment can often confirm what proportion of an IT project may qualify for each program before detailed tracking begins. Book a free consultation with a technology tax credit specialist to structure this allocation during project planning.
Avoiding mistakes when optimizing software tax credits
Poorly managed software tax credit optimization creates a genuine review risk. Claiming the same salaries under two programs without records supporting the allocation attracts the attention of the tax authorities and may delay the entire file, including the portion that is fully eligible.
Our detailed comparison of SR&ED and CDAE-IA confirms that stacking is permitted when expenditures are clearly separated. For companies developing software as a service, our CDAE-IA guide for SaaS businesses explains the eligibility requirements that apply to this business model.
Investissement Québec publishes the detailed CDAE-IA eligibility requirements, while the Canada Revenue Agency defines work that may qualify for SR&ED. These two sources can help determine which program applies to each project component.
Build an SR&ED and CDAE-IA strategy during project planning
Claiming multiple Quebec tax incentives for one IT project is not unusual, but it requires disciplined organization from the first weeks of development. A company that structures time tracking and documentation around both programs does not have to choose between SR&ED and CDAE-IA when each may apply to a different component of the same project.
An early project assessment can map the tasks that belong to each credit before development is too far advanced. Speak with a technology funding specialist to evaluate the stacking potential of a current or upcoming project.
FAQ
Can SR&ED and CDAE-IA really be claimed for one project?
Yes. SR&ED and CDAE-IA may both apply when the programs cover clearly distinct components of the same IT project. The essential condition is that no expenditure, including the salaries paid to the employees involved, is counted twice. Clear records allocating hours and tasks between the two credits are necessary to support the allocation with the federal and provincial tax authorities.
Can a small IT company claim CDAE-IA?
CDAE-IA requires at least six full-time employees who devote a significant portion of their time to eligible activities, as well as a high proportion of revenue from information technology activities. A company that does not yet meet these thresholds may still qualify for SR&ED if its work involves genuine technological uncertainty, regardless of its size or age.
How can a company reduce review risk on a combined claim?
The strongest protection is to document the tasks associated with each credit separately during development and maintain distinct time records by employee and project component. A vague allocation reconstructed after the taxation year has ended increases the likelihood of a review, while a well-structured file demonstrates from the outset that the two programs do not overlap.
Elie Karam
President
Expert in grants and tax credits, Elie Karam has been helping Quebec businesses obtain government funding for over 15 years. His passion for innovation and deep expertise in financial assistance programs make him the ideal advisor to maximize your returns.
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