Ontario small business deduction (SBD) - ON - Canada

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

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