When assessing the financial viability of a Scientific Research and Experimental Development (SR&ED) claim, the ultimate question is always about bottom-line recovery: What is the exact return on investment?
The answer depends heavily on your corporate structure, your geographic location, and how your R&D expenses are distributed across salaries, contractors, and materials. For a typical small-to-medium-sized startup, your total cash-back recovery can range
between 45% and 65% of your eligible R&D expenditures.
Here is exactly how the Canada Revenue Agency (CRA) and provincial tax bodies calculate your final check.
The single biggest variable in your SR&ED calculation is whether your business is a
Canadian-Controlled Private Corporation (CCPC) or an Eligible Canadian Public Corporation (ECPC) versus a foreign-owned or standard public corporation.
1. The Enhanced Tier (CCPCs & ECPCs)
If your business is a private or eligible public corporation controlled by Canadian
residents, you qualify for the enhanced tier:
2. The Basic Tier (Foreign-Owned, Large Public Corps)
If your business is foreign-controlled or exceeds the corporate growth thresholds:
You do not just multiply your raw receipts by 35%. The CRA applies specific inclusion rates to different types of costs. If you choose the popular Proxy Method (which adds a flat 55% overhead bonus to your internal R&D salaries), your approximate cash-back rates for every dollar spent look like this:
Internal Employee Salaries: ~60% to 65% Cash Back
Salaries are the most lucrative asset in an SR&ED claim. If an engineer is paid $100,000 and spends 100% of their time on eligible R&D:
Canadian Contractors: ~32% Cash Back
To prevent companies from claiming overhead on external workers, the CRA only allows you to pool 80% of what you pay to arm’s-length Canadian contractors. If you pay a contractor $100,000, only $80,000 enters your expenditure pool. At a 35% tax credit rate, you get $28,000 back federally, bumping up to roughly $32,000 once provincial credits are factored in.
Materials & Capital Equipment: ~40% to 45% Cash Back
Raw materials that are entirely consumed or transformed during your systematic testing are eligible at 100% face value. Furthermore, under expanded frameworks, capital expenditures (like specialized laboratory machinery or prototyping tools purchased primarily for R&D) are once again eligible for deductions and tax credits, though the investment tax credit earned on capital assets is subject to a distinct 40% refundability cap.
Every province in Canada (except Prince Edward Island) offers its own R&D tax credit that stacks directly on top of your federal return.
| Province | Typical Provincial Rate (for SMEs) | Is it Refundable? | Total Combined Recovery Rate (Wages) |
| Quebec | 30% | Yes | Up to 65% |
| Alberta | 20% | Yes | Up to 55% |
| Ontario | 8% (OITC) + 3.5% | Yes (OITC) | Up to 46.5% |
| British Columbia | 10% | Yes | Up to 45% |
| Nova Scotia / NB | 15% | Yes | Up to 50% |