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Government of Ontario, Ministry of Finance

Ontario Research and Development Tax Credit

Amount
Varies
Deadline
Rolling
Odds
Formula-based, not competitive
Effort
Ongoing, filed with
Can you get this?
✓Must be a corporation with Ontario permanent establishment
✓Must conduct SR&ED activities in Ontario
✓Must qualify for federal SR&ED investment tax credit
✓Must file federal form T661 for the tax year
✕Tax-exempt corporations are not eligible
Your real odds
This is a formula-based tax credit, so if you meet the criteria and file correctly, you receive it.
The real risk is failing to qualify at the federal SR&ED level first, because Ontario eligibility ties directly to federal eligibility, and clearing that federal bar is often the harder step.
What it takes
File federal SR&ED claim on form T661 with your T2 returnOngoing, filed with annual corporate tax return
Complete Ontario Schedule 508 and file with your T2 returnSame filing as your annual corporate tax return
Track any unused credits for carry-back (3 years) or carry-forward (20 years)At tax filing time
Worth knowing
The Ontario Innovation Tax Credit counts as government assistance and reduces your eligible expenditures for this credit, so if you claim both, work through the order carefully with your accountant before filing.
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