Ontario Research and Development Tax Credit (ORDTC)
Compared with the 242 other application forms we have read
- Scored mainly on who you are, not what you propose. 29 lead with that.
- Most rejections here are settled before you write a word: they turn on who you are, not how well you argue.
Can you claim this credit?
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Eligibility & Details
What this program funds and who can apply
Program Description
Non-refundable provincial tax credit of 3.5% of eligible scientific research and experimental development (SR&ED) expenditures incurred in Ontario by qualifying corporations. The ORDTC stacks on top of the federal SR&ED Investment Tax Credit and the Ontario Innovation Tax Credit (OITC), providing an additional layer of R&D tax relief for Ontario businesses. Unlike the OITC (which is refundable at 8%), the ORDTC is non-refundable and reduces Ontario corporate income tax payable only — unused amounts carry back 3 years or forward 20 years.
Eligibility Requirements
- Must be a corporation (not exempt from Ontario corporate income tax)
- Must have a permanent establishment in Ontario
- Must conduct scientific research and experimental development (SR&ED) activities in Ontario
- Must qualify for the federal SR&ED Investment Tax Credit under section 127 of the federal Income Tax Act
- Must file the federal SR&ED expenditure claim on form T661 for the taxation year
Quick Assessment
Funding Details
- Amount
- 3.5% of eligible Ontario SR&ED expenditures (non-refundable)
- Type
- Tax Credit
- Level
- Provincial
- Credit rate
- Up to 3.5% of eligible costs
- Deadline
- Ongoing — claim via annual T2 corporate tax return with federal SR&ED claim (T661)
Program Scorecard
Competition, effort, and approval at a glance
Accessible — straightforward requirements
Low competition — good odds of approval
Moderate — standard requirements
How to claim
Insider tips, common pitfalls, and what successful applicants look like
Insider TipThe ORDTC is often overlooked because it's non-refundable and 'only' 3.5% — but it's essentially free money for profitable Ontario corporations already claiming federal SR&ED.
Success Profile
Evaluation Criteria
How ORDTC judges your application
What the reviewer scores, what gets applications rejected, and what to write.
Distilled from 2 source documents on ontario.ca, condensed into one brief. Sources as of 2026-09-07.
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The form
There is no member-written application: the credit is claimed on Schedule 508 and filed with the corporation's T2 corporation income tax return.◦
Judged against
- 1
Is this real Ontario SR&ED work?
Show them Show a permanent establishment in Ontario and scientific research and experimental development carried on there.◦
- 2
Does the federal claim stand behind it?
What to show them in Premium
- 3
Is the corporation taxable in Ontario?
What to show them in Premium
Premium · the rest of this brief
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3 more rules that can reject you
Do you pass?
Each one can rule you out. Tick the ones you meet.
Your business
Permanent establishment in Ontario
Corporation has a permanent establishment in Ontario.
Eligible for the federal ITC
Corporation is eligible for the federal investment tax credit under section 127 of the federal Income Tax Act.
Documents to attach
Ticks are kept on this device.
The money
Credit rate3.5% non-refundable tax credit
3.5% non-refundable tax credit.
Unused credit carry-overCarry back 3 years, forward 20
Unused credit may be carried back 3 years or forward 20 years.
StackingOther government assistance reduces ORDTC base
Government assistance, including the Ontario Innovation Tax Credit, reduces the ORDTC expenditure base.
What it pays for · 1
- Eligible expenditures are those that qualify for the federal investment tax credit under section 127 of the federal Income Tax Act and are attributable to a permanent establishment in Ontario.
From application to money
- Determine Ontario expendituresDetermine qualifying Ontario SR&ED expenditures
- File federal T661File federal T661 before Ontario credit
- File Schedule 508 with T2Schedule 508 filed with T2 return
In the funder’s words · 3
- Determine Ontario expenditures
- Work out which qualifying Ontario SR&ED expenditures belong to a permanent establishment in Ontario.
- File federal T661
- File federal form T661 for the taxation year before calculating the Ontario credit.
- File Schedule 508 with T2
- Calculate the ORDTC on Schedule 508 and submit it with the T2 corporation income tax return.
Quoted lines are word for word from the source documents; lines marked ◦ are our reading of them.
Everything you need to claim ORDTC
Not a marketing summary. The actual checklist, intel, and stack strategy reviewers look for.
- 4-document checklist with what each reviewer is actually checking
- Your Application Game Plan — the print-ready PDF the preview below describes
- 4-step application timeline with prep hours per step
- Insider tip from program officers on what separates winners
- 2-program stacking strategy to combine with compatible funding
- Success profile + evaluation criteria — exactly what the program administrators check
Application Playbook
Step-by-step process, required documents, and expenses
Application Steps
Required Documents 4
Eligible Expenses 3
Ineligible Expenses 3
Claim timing
Deadline Notes
Ineligible Organizations
Funding Stack Strategy
Compatible programs, clawback risk, and combined funding potential
Compatible Programs
Clawback Risk
Low RiskHow ORDTC Compares
Side-by-side with similar programs
| Program | Amount | Difficulty | Payment | Deadline |
|---|---|---|---|---|
| Ontario Research and Development Tax ... | 3.5% of eligible Ontario SR&ED expenditures | Moderate | Tax Credit Offset | Ongoing — claim via... |
| Strategic Response Fund (formerly Str... | Minimum $10 million contribution | Hard | Mixed (Advance + Reimb.) | Ongoing — continuous... |
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Frequently Asked Questions
Quick answers to the questions founders most often ask about ORDTC