CDAE & CDAEIA Tax Credit Quebec: Complete 2026 Guide

CDAE & CDAEIA Tax Credit Quebec: The Complete Guide for 2026

If you run an IT or software company in Quebec, you have access to one of the most generous technology tax credits in North America, and most companies either do not know it exists or confuse it with SR&ED. The CDAE (Credit for the Development of E-Business), now updated and renamed as the CDAEIA (Credit d'impot pour le developpement des affaires electroniques et de l'intelligence artificielle), provides a refundable tax credit on the salaries of eligible employees performing qualifying IT activities.

Unlike SR&ED, the CDAE/CDAEIA does not require technological uncertainty or experimental development. If your team writes software, develops digital solutions, or works in IT infrastructure, you likely qualify. This guide covers everything: eligibility criteria, credit rates, application steps, how CDAEIA differs from the original CDAE, and how to stack it with other credits.

What Is the CDAE Tax Credit?

The CDAE was introduced by the Quebec government in 2008 as the "Credit d'impot pour le developpement des affaires electroniques", the Tax Credit for the Development of E-Business. Its purpose was straightforward: to make Quebec a competitive destination for IT companies by subsidizing the cost of employing technology workers.

The credit applied to salaries paid to eligible employees performing designated IT activities within qualifying corporations. It was administered by Investissement Quebec (IQ) and claimed through the Quebec corporate tax return (CO-17).

The Transition to CDAEIA

Starting with the 2024-2025 Quebec budget, the government announced changes to modernize the credit and expand its scope to include artificial intelligence activities. The updated credit is known as the CDAEIA, adding "et de l'intelligence artificielle" (and artificial intelligence) to reflect the expanded eligibility.

Key changes in the transition from CDAE to CDAEIA:

• AI activities explicitly included: Development of AI models, machine learning systems, natural language processing, and computer vision applications are now clearly within scope
• Updated eligible activity categories: The list of qualifying activities has been refreshed to reflect modern technology stacks
• Continued salary-based calculation: The fundamental structure, a percentage credit on eligible salaries, remains the same
• Same administrator: Investissement Quebec continues to issue eligibility certificates

For most existing CDAE claimants, the transition is seamless. If you were eligible under CDAE, you are almost certainly eligible under CDAEIA.

CDAEIA Credit Rates and Amounts

The CDAEIA provides a refundable tax credit of 24% on eligible salaries, up to a maximum salary of $83,333 per eligible employee per year (the cap is periodically adjusted). This means the maximum annual credit per employee is approximately $20,000.

How the Calculation Works

The credit is calculated as follows:

1. Determine eligible salaries: Sum the gross salaries paid to eligible employees during the tax year, capped at the per-employee maximum
2. Apply the credit rate: Multiply the eligible salary base by 24%
3. Reduce by other government assistance: Subtract any other government assistance received on those same salaries (e.g., wage subsidies)
4. Claim on CO-17: Report the credit on your Quebec corporate tax return

Example calculation:

• Your company employs 15 eligible IT workers in Montreal
• Average annual salary: $90,000 per employee
• Capped salary per employee: $83,333
• Total eligible salary base: 15 x $83,333 = $1,250,000
• CDAEIA credit at 24%: $300,000 refundable tax credit

That is $300,000 in cash back from the Quebec government, every single year, just for employing technology workers in the province.

Comparing CDAEIA to Similar Credits

Who Qualifies for the CDAEIA?

Corporation Eligibility

To qualify, your corporation must meet all of the following criteria:

1. Established in Quebec: The corporation must have an establishment in Quebec where eligible activities are carried out
2. Minimum proportion of eligible activities: At least 75% of the corporation's activities must consist of services in the field of information technologies (IT). This is measured using a combination of gross revenue and employee activity tests
3. Minimum employee threshold: The corporation must have at least six eligible full-time employees throughout the year (or the equivalent in part-time employees). This threshold ensures the credit targets genuine IT operations, not one-person shops claiming a minimal benefit
4. Not in an excluded sector: Certain sectors are excluded, including telecommunications carriers, broadcasters, and financial institutions that perform IT activities primarily for their own internal use

The 75% Rule in Detail

The 75% threshold is the most common point of failure for CDAEIA applications. Investissement Quebec assesses this based on:

• Revenue test: At least 75% of the corporation's gross revenue must come from providing IT services or IT-related products
• Activity test: At least 75% of the corporation's employees must be engaged in eligible IT activities

If your company earns significant revenue from non-IT activities (e.g., consulting, professional services unrelated to technology, hardware resale), you may fall below the 75% threshold. Companies in this situation should consider whether restructuring (e.g., creating a separate IT subsidiary) would allow the IT operations to qualify.

Employee Eligibility

Not every employee at a qualifying corporation generates a credit. An eligible employee must:

• Work full-time (at least 26 hours per week) or the proportional equivalent
• Spend a substantial portion of their working time on eligible IT activities (generally at least 75%)
• Be employed by the corporation (not a contractor or subcontractor)
• Work at an establishment located in Quebec

Eligible IT Activities

The CDAEIA covers a broad range of technology activities, organized into these categories:

Development and integration:

• Design, development, and integration of information systems
• Software development (web applications, mobile apps, SaaS platforms, enterprise software)
• Database design and development
• Systems architecture and integration
• AI model development, training, and deployment
• Machine learning pipeline development
• Development of e-commerce platforms and digital services

IT operations and infrastructure:

• IT infrastructure management and operations
• Cloud architecture and management
• Network design and administration
• Cybersecurity operations and development
• DevOps and systems reliability engineering
• Data center operations (for companies whose primary business is IT services)

Analysis and design:

• Business analysis related to IT system design
• UX/UI design for digital products
• Data analysis and data engineering
• Quality assurance and software testing
• IT project management (when the project is an eligible activity)

Support activities (with limitations):

• Technical support and help desk (only when it is a primary business activity, not internal IT support)
• IT training development (when producing digital training products)

Activities That Do NOT Qualify

The following are commonly misunderstood as eligible but are excluded:

• Internal IT support: Running your company's own email servers, maintaining internal networks, or managing your own website does not qualify unless your primary business is providing these services to external clients
• Telecommunications operations: Operating telephone networks, cable systems, or ISP infrastructure
• Content creation: Writing, graphic design, video production, and marketing activities, even if delivered digitally
• Hardware manufacturing: Building physical devices or equipment
• Data entry and digitization: Scanning documents, entering data, or basic data processing
• Sales and marketing: Even if the product being sold is software

How to Apply for the CDAEIA

The application process involves two government agencies and several forms. Here is the step-by-step process:

Step 1: Obtain an Eligibility Certificate from Investissement Quebec

Note that the IQ application deadline is separate from the SR&ED claim filing deadline, so track both carefully if you are claiming both credits. Before you can claim the credit on your tax return, you must obtain an annual eligibility certificate from Investissement Quebec (IQ). This certificate confirms that:

• Your corporation meets the 75% IT activities threshold
• Your corporation has the required minimum number of eligible employees
• The specific employees you are claiming meet the individual eligibility criteria

Application timeline: Submit your application to IQ within 15 months of the end of your fiscal year. In practice, you should apply as soon as possible after year-end to avoid delays.

Required information:

• Detailed description of your corporation's activities
• List of all employees, their roles, and the percentage of time spent on eligible activities
• Financial statements demonstrating the 75% revenue threshold
• Organization chart showing the IT team structure

Step 2: Receive the IQ Certificate

Investissement Quebec reviews your application and issues (or denies) the eligibility certificate. Processing times vary, but expect 3-6 months from submission. The certificate specifies each eligible employee by name and the eligible salary amount for each.

Step 3: Claim the Credit on Your CO-17

Once you have the IQ certificate, claim the CDAEIA on your Quebec corporate tax return (CO-17) using the applicable schedule. The credit is refundable, meaning you receive the full amount even if your corporation has no Quebec tax payable.

Step 4: Retain Supporting Documentation

Keep detailed records for at least 6 years, including:

• Time tracking records showing employee allocation to eligible activities
• Project documentation demonstrating the nature of IT work performed
• Employment contracts and pay records
• Copies of the IQ eligibility certificate and application materials

Stacking CDAEIA with SR&ED and Other Credits

One of the most powerful aspects of the CDAEIA is that it can be stacked with the federal SR&ED tax credit, but with an important caveat.

CDAEIA + Federal SR&ED

You can claim both the CDAEIA and federal SR&ED on the same employees, as long as the employees are performing work that qualifies under both programs. To maximize your SR&ED refund, ensure your company maintains CCPC status, which unlocks the enhanced 35% refundable rate. However, the CDAEIA amount received reduces your SR&ED qualified expenditure pool for that employee.

Example:

• Employee salary: $100,000
• CDAEIA credit received: $20,000 (24% of $83,333)
• SR&ED qualified salary (after reducing by government assistance): $80,000
• Federal SR&ED ITC (35% for CCPC): $28,000

Combined benefit: $48,000 on a $100,000 salary, effectively a 48% subsidy on the cost of that employee.

CDAEIA + Quebec SR&ED Credit

Quebec also has its own provincial R&D tax credit (the Quebec R&D Tax Credit), which can further stack. The interaction is complex and depends on your specific situation, but the combined federal + provincial + CDAEIA rate for a qualifying CCPC performing SR&ED-eligible work in Quebec can exceed 55% of salary costs.

CDAEIA + Quebec Multimedia Tax Credits

If your company also produces multimedia titles, video games, or digital media, you may qualify for Quebec's multimedia tax credits in addition to the CDAEIA. However, the same salary cannot generate credits under both the CDAEIA and the multimedia credit, you must allocate each employee to one credit or the other based on their primary activities.

Common Mistakes and How to Avoid Them

1. Failing the 75% Threshold

The most common reason for CDAEIA denial is falling below the 75% IT activity threshold. Companies that offer a mix of IT and non-IT services (e.g., a consulting firm with both management consulting and software development divisions) are particularly vulnerable. Solution: Track the revenue and activity split carefully. Consider corporate restructuring if needed.

2. Not Applying to Investissement Quebec on Time

The IQ eligibility certificate must be applied for within 15 months of your fiscal year end. Without it, you cannot claim the credit, even if you are fully eligible. Solution: Add the IQ application to your year-end tax compliance checklist immediately after fiscal year end.

3. Including Ineligible Employees

Claiming employees who spend less than 75% of their time on eligible IT activities will trigger a denial for those employees and may prompt a broader review. Solution: Implement time tracking for all employees. When in doubt, exclude borderline employees and focus on those who clearly qualify.

4. Not Distinguishing Internal IT from Client-Facing IT

A manufacturing company with a 10-person internal IT team does not qualify, the company's primary business is manufacturing, not IT. Only companies whose primary business activity is providing IT services to external clients (or developing IT products for the market) qualify. Solution: Ensure your corporate structure and revenue clearly demonstrate that IT is your primary business.

5. Missing the Interaction with SR&ED

Failing to properly reduce your SR&ED expenditure pool by the CDAEIA amount received can lead to double-dipping issues and CRA reassessments. Solution: Coordinate your CDAEIA and SR&ED claims. Ensure your tax advisor understands both programs.

Frequently Asked Questions

What is the difference between CDAE and CDAEIA?

The CDAEIA is the updated version of the CDAE. The original CDAE (Credit for the Development of E-Business) has been expanded and renamed to CDAEIA (adding "and Artificial Intelligence") to explicitly include AI and machine learning activities. The fundamental structure, credit rate, and eligibility criteria remain largely the same, with the addition of AI-specific qualifying activities.

Can startups qualify for the CDAEIA?

Yes, startups can qualify as long as they meet the core eligibility criteria: at least 6 eligible full-time employees, 75% of activities in IT, and an establishment in Quebec. There is no minimum revenue requirement, no requirement for profitability, and no minimum years in business. However, the 6-employee minimum means very early-stage startups with fewer than 6 people will need to wait until they reach that threshold.

How long does the Investissement Quebec application take?

Processing times for the IQ eligibility certificate typically range from 3 to 6 months. Complex applications (e.g., companies near the 75% threshold, companies with mixed IT and non-IT activities) may take longer. To avoid delays, submit a complete application with thorough documentation of your activities and employee allocations.

Can I claim CDAEIA and SR&ED on the same employee?

Yes, the same employee's salary can generate both a CDAEIA credit and a federal SR&ED ITC, provided the work qualifies under both programs. However, the CDAEIA amount received reduces your SR&ED qualified expenditure pool for that employee. The combined effective rate can exceed 48% of salary for a qualifying CCPC.

Does CDAEIA apply to contractors or subcontractors?

No. The CDAEIA applies only to salaries paid to direct employees of the qualifying corporation. Fees paid to contractors, subcontractors, or outsourced service providers are not eligible. If you rely heavily on contractors, consider whether converting key roles to employee positions would generate sufficient CDAEIA credits to justify the change.

What happens if our IT activity percentage drops below 75%?

If your corporation's IT activities fall below 75% in a given year, you will not qualify for the CDAEIA for that year. The eligibility assessment is done annually, so a temporary dip below 75% does not permanently disqualify you. However, Investissement Quebec may scrutinize your application more closely in subsequent years if you have had previous failures. Monitor your activity mix continuously and take corrective action before year-end if you see the ratio declining.

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Quebec offers some of the most generous technology tax incentives in North America. Between the CDAEIA, SR&ED, and provincial R&D credits, your company could be recovering over 50% of eligible salary costs. See all Quebec tax credits you qualify for or explore the full list of Canadian funding programs.