If your Ontario business invests in research and development, the Ontario Innovation Tax Credit (OITC) can put real cash back into your company. Many owners miss out because the rules are tied to federal SR&ED and the rates changed in recent years. This guide explains who qualifies, how much you can claim, and how the credit works today, based on current Ontario government rules.
The Ontario Innovation Tax Credit is a refundable Ontario corporate income tax credit for eligible scientific research and experimental development (SR&ED) work performed in Ontario. Refundable means you can receive the credit even if your corporation does not owe Ontario corporate tax.
The program is administered by the Province of Ontario and claimed as part of your corporate tax return, alongside your federal SR&ED claim.
To claim the Ontario Innovation Tax Credit, your business must meet all of the following conditions:
You are a corporation
The OITC is only available to corporations. Sole proprietors and partnerships cannot claim it directly.
You carry out SR&ED in Ontario
The research and development work must meet the federal SR&ED definition and be performed in Ontario.
You incur eligible SR&ED expenditures
Eligible costs generally align with federal SR&ED expenses, such as:
You file a corporate tax return
The credit is claimed through your Ontario corporate income tax filing, typically alongside federal SR&ED forms.
There is no requirement for your corporation to be profitable. Startups and early-stage companies can still qualify because the credit is refundable.
The Ontario Innovation Tax Credit rate depends on when your taxation year begins.
For taxation years that straddle June 1, 2016, the rate is prorated:
For taxation years that begin after May 31, 2016:
If your taxation year straddles June 1, 2016, the $240,000 limit is also prorated based on the number of days before and after that date.
Because the credit is refundable, eligible corporations can receive the full amount as a refund, even if no Ontario corporate income tax is payable.
The Ontario Innovation Tax Credit is designed to work together with federal SR&ED incentives.
Here is how it usually works:
This makes the OITC an important funding option for Ontario businesses doing R&D. Using tools that match your business profile to funding programs can help you identify all the credits and grants you qualify for.
SR&ED is based on technical uncertainty, not industry. Manufacturing, agri-food, and clean tech companies often qualify but do not apply.
Corporations with taxation years around June 2016 often miscalculate the credit. Using the wrong rate can reduce or delay your refund.
The OITC is capped at $240,000 per year for post–May 31, 2016 taxation years. Claims above this limit will be reduced.
Ontario relies on federal SR&ED definitions. Weak technical or financial documentation can put both credits at risk.
Q: Is the Ontario Innovation Tax Credit refundable?
Yes. The OITC is fully refundable, even if your corporation does not owe Ontario corporate income tax.
Q: What is the current Ontario Innovation Tax Credit rate?
The current rate is 8% for taxation years that begin after May 31, 2016. Earlier years or straddling years use prorated rates.
Q: What expenses qualify for the Ontario Innovation Tax Credit?
Eligible expenses generally match federal SR&ED costs, including R&D wages, materials, and certain overhead expenditures.
Q: What is the maximum Ontario Innovation Tax Credit I can claim?
For taxation years that commence after May 31, 2016, the maximum credit is $240,000 per year, subject to proration rules.
Q: Can I claim the Ontario Innovation Tax Credit and federal SR&ED together?
Yes. The OITC is typically claimed in addition to federal SR&ED credits, using the same eligible R&D expenditures.
If you want to see which grant and tax credit programs match your business, consider using a funding search tool to save time and reduce errors.
If your business performs R&D in Ontario, the Ontario Innovation Tax Credit should be part of your funding plan. Reviewing your SR&ED eligibility is often the fastest way to confirm whether you qualify. Funding search tools can help Ontario businesses see which tax credits and grants align with their activities, timelines, and growth stage.
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