Ontario Child Support Calculator

Provided by the Department of Justice of the Government of Canada, the child support table look-up will help you find the base amount of child support. Read the Step-by-Step Guide and the Table Look-up Disclaimer for more details. The Guide offers instructions and worksheets that will help explain how to calculate child support amounts. It also has information on special or extraordinary expenses that may need to be added to the basic child support amount.

Ask us for advice about your situation. The base amount is often not the final child support amount to be paid. For example, if there are special expenses such as child care or if you share custody, the amount will likely be different.

Under the Federal Child Support Guidelines, the table amount is determined by:

  • the number of children;
  • the province or territory where the paying parent lives; and
  • the paying parent's before tax annual income.

Click here for the calculator

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We offer an initial free phone or in-person consultation with one of our lawyers to discuss your legal options and potential next steps.


We take time to lay out your options and make an informed decision on the best course of action for you and your family.


We make every effort to ensure the process is as painless as possible while still delivery the results you deserve.


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