
Ontario small business deduction (SBD)
grant_single|update April 27, 2025
ON, Canada
Reduces income tax for eligible Ontario small businesses
grant_single_labels|summary
grant_single|eligibleFinancing
- grant_single|projectCostPercent
grant_single|deadlines
- grant_single|timelineUnspecified
grant_single|financingType
Tax Credits
grant_single|eligibleIndustries
- grant_single|allIndustries
grant_single|grantors
- Ontario Ministry of Finance
- Government of Ontario
grant_single|status
grant_card_status|open
grant_single_labels|preview
The Ontario Small Business Deduction allows eligible Canadian-controlled private corporations (CCPCs) to reduce their Ontario basic income tax by applying a deduction rate of 8.3%, resulting in a lower effective tax rate of 3.2% on small business income. The program is designed to support small businesses by reducing their tax burden, with eligibility phased out for corporations with taxable capital in Canada over $50 million.
grant_single_labels|terms_and_conditions
- The deduction allows for a reduction of the Ontario basic income tax by applying a small business deduction rate of 8.3% to eligible Ontario small business income.
- The resulting effective Ontario corporate tax rate for eligible small business income is 3.2%.
- The deduction amount is phased out for corporations with taxable capital employed in Canada exceeding $10 million in the previous tax year, and is eliminated if this amount reaches $50 million or more.
grant_single_labels|admissibility
- The applicant must be a Canadian-controlled private corporation (CCPC) throughout the tax year.
- The applicant's taxable capital employed in Canada in the previous tax year must not exceed $50 million (phased out over $10 million, completely eliminated at $50 million).
- The deduction applies to income classified as Ontario small business income.
grant_eligibility_criteria|who_can_apply
- Canadian-controlled private corporations (CCPCs) operating in Ontario
grant_eligibility_criteria|who_cannot_apply
- Corporations that are not Canadian-controlled private corporations (CCPCs) throughout the tax year.
- CCPCs (including associated corporations) with taxable capital employed in Canada of $50 million or more in the previous tax year.
grant_eligibility_criteria|zone
- Ontario
grant_single_labels|apply
- Step 1: Calculate Ontario Small Business DeductionUse Part 2 of Schedule 500, Ontario Corporation Tax Calculation, as a worksheet to determine your corporation's Ontario small business deduction amount.
- Step 2: Enter Deduction InformationOn line 402 of Schedule 5, Tax Calculation Supplementary – Corporations, enter the calculated Ontario small business deduction amount.
- Step 3: File Required Forms with T2 ReturnComplete the T2 Corporation Income Tax Return.
- Include Schedule 5 with your T2 return when you file with the Canada Revenue Agency.
grant_single_labels|otherInfo
- The Ontario small business deduction is calculated using the corporation's Ontario small business income and the small business deduction rate for the year.
- The reduction and elimination of the deduction are based on the taxable capital employed in Canada during the previous tax year.
- Ontario small business income is capped by the corporation's Ontario taxable income and is determined using the Ontario domestic factor.
- Schedule 500 is used as a worksheet for calculation and does not need to be filed with the corporate tax return.
Apply to this program
More grants like this

Tax Creditsgrant_card_status|open
Refundable tax credit for R&D in Ontario

Tax Creditsgrant_card_status|open
Non-refundable tax credit for R&D in Ontario

Tax Creditsgrant_card_status|open
Supports corporate investments in Ontario's manufacturing sector

Tax Creditsgrant_card_status|open
Ontario co-op student tax credit

Tax Creditsgrant_card_status|open
Refund for Ontario gasoline tax paid for unlicensed equipment

Tax Creditsgrant_card_status|open
Tax credit for Ontario film and television content

Tax Creditsgrant_card_status|open
Business tax credit for scientific research in Ontario

Tax Creditsgrant_card_status|open
Supports corporations with eligible manufacturing and processing income

Tax Creditsgrant_card_status|open
Tax credit for film and television production in Ontario

Grant and Fundinggrant_card_status|closed
Funds to accelerate business growth in Northern Ontario