Ontario Innovation Tax Credit
Eligibility & Details
What this program funds and who can apply
Program Description
Refundable tax credit for eligible R&D expenditures incurred in Ontario by qualifying corporations.
Eligibility Requirements
- Corporation incorporated and filing taxes in Canada (sole proprietors, partnerships, and trusts are ineligible)
- Has a permanent establishment in Ontario during the tax year
- Conducting eligible SR&ED activities that qualify for the federal SR&ED ITC under ITA s.127
- Prior-year taxable capital (associated group) does not exceed $50 million (phase-out eliminates credit above $50M)
- Ontario-attributable R&D expenditures are present (costs must be allocated to Ontario operations)
- T661 and Schedule 566 filed within 18 months of fiscal year-end (absolute deadline)
Quick Assessment
Funding Details
- Amount
- Up to 8% tax credit
- Type
- Tax Credit
- Level
- Provincial
- Co-Funding
- Up to 8% of eligible costs
- Deadline
- Ongoing
Program Scorecard
Competition, effort, and approval at a glance
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How to Win
Insider tips, common pitfalls, and what successful applicants look like
Insider TipFile Form T661 within the 18-month deadline even if your SR&ED eligibility is uncertain — you can refine the claim through the CRA review process, but you cannot file late. Use CRA's free SR&ED Pre-Claim Consultation service to get informal confirmation of project eligibility before filing, which also creates a paper trail of CRA guidance that helps in audit. For first-time claimants, hiring an SR&ED consultant on contingency costs nothing upfront and significantly reduces audit risk through proper project narrative structuring.
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Rejection Pitfalls 10
- Underlying SR&ED claim disallowed by CRA technical reviewer — insufficient evidence of technological uncertainty or advancement beyond routine engineering
- Missing 18-month T661/Schedule 566 filing deadline (permanent, no appeals process for late filing)
- Including ineligible expenditures (routine testing, maintenance, market research, administration)
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Success Profile
Ontario-based CCPC with prior-year taxable income under $500K and taxable capital under $25M, conducting qualifying SR&ED activities (software, biotech, advanced manufacturing, AI/ML, materials science). R&D team of 5–20 people with annual Ontario R&D payroll of $500K–$3M. Uses specialist SR&ED consultant for claim preparation. Has contemporaneous project documentation (timesheets, lab notebooks, Git commit history). Files T2 + T661 + Schedule 566 together well before the 18-month deadline.
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Evaluation Criteria
Non-competitive entitlement. Evaluation is a two-part check: (1) does the corporation qualify for the federal SR&ED ITC under ITA s.127, and (2) does it have a permanent establishment in Ontario? The OITC rate and cap phase-out is applied automatically based on the corporation's taxable income and taxable capital from the prior year. CRA adjudicates all SR&ED technical questions; Ontario does not conduct separate technical reviews.
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Application Playbook
Step-by-step process, required documents, and expenses
Application Steps
Required Documents 11
Eligible Expenses 6
- Ontario-attributable SR&ED salaries and wages (including employer-paid CPP, EI, and provincial health levies)
- Materials consumed or transformed in SR&ED experimentation
- Overhead via 55% proxy method on eligible SR&ED salaries
- Arm's-length subcontractor SR&ED payments (at 80% of amount paid)
- Non-arm's-length subcontractor SR&ED (at 100% of salaries paid to subcontractor employees)
- Capital expenditures for SR&ED equipment used 90%+ for SR&ED (eligible post-Budget 2025)
Ineligible Expenses 6
- Routine engineering, software maintenance, or quality assurance testing
- Market research, social science, or humanities research
- Administration, HR, and overhead not captured by proxy method
- Foreign subcontractor payments
- R&D activities conducted outside Ontario (costs must be Ontario-attributable)
- Expenditures of corporations with taxable capital (associated group) exceeding $50M (phase-out complete)
Intake Periods
Ongoing — no intake windows. File with the T2 within 18 months of fiscal year-end.
Deadline Notes
Ongoing statutory entitlement — no program sunset date. Claim deadline is 18 months after corporation's fiscal year-end (T661 and Schedule 566 must be filed by then). Missing this deadline results in permanent forfeiture of the credit for that year.
Open Application Portal →Ineligible Organizations
- Sole proprietors and self-employed individuals
- Partnerships (partners may claim their proportional share individually)
- Trusts
- Non-profit organizations without taxable income
- Corporations without a permanent establishment in Ontario during the tax year
- Corporations with prior-year taxable capital (associated group) exceeding $50M (phase-out complete — zero OITC, may still claim non-refundable ORDTC)
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Funding Stack Strategy
Compatible programs, clawback risk, and combined funding potential
Compatible Programs
Clawback Risk
Low RiskLow. Clawback occurs only if CRA reassesses and reduces the federal SR&ED qualified expenditure base (e.g., after a technical audit disallows certain projects). Ontario automatically recalculates Schedule 566 based on the revised federal base. Interest accrues on over-claimed amounts from the original refund date.
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How Ontario Innovation Tax Credit Compares
Side-by-side with similar programs
| Program | Amount | Difficulty | Payment | Deadline |
|---|---|---|---|---|
| Ontario Innovation Tax Credit | Up to 8% tax credit | Moderate | Tax Credit Offset | Ongoing |
| NRC IRAP Clean Technology Program | $100,000–$500,000 | Hard | Mixed (Advance + Reimb.) | Ongoing |
| FedDev Ontario Funding | Varies | Hard | Reimbursement | Ongoing |
| Strategic Response Fund (formerly Str... | Up to $50 million | Hard | Mixed (Advance + Reimb.) | Ongoing — continuous... |
| CanExport SMEs | Up to $50,000 | Moderate | Mixed (Advance + Reimb.) | Annual intake window.... |
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