Legal Review
This guide was reviewed by Deepa Tailor, Senior Family Lawyer, to ensure compliance with the Federal Child Support Guidelines and Ontario family law.
Child support is a legal obligation in Ontario that requires parents to financially contribute to the care and upbringing of their children after separation or divorce. It is governed by the Federal Child Support Guidelines (for married couples) and the Family Law Act (for unmarried couples).
Child support in Ontario is primarily calculated based on the paying parent’s gross annual income and the number of children. The Federal Child Support Guidelines provide tables that set out the monthly amount payable.
The base monthly child support amount determined by the Guidelines tables based on the payor’s province of residence and income.
In addition to the table amount, parents may be required to share special expenses such as childcare costs, medical/dental expenses, extracurricular activities, and post-secondary education costs.
In Ontario, child support typically ends when the child turns 18, unless the child is still in full-time education, has a disability, or is otherwise unable to withdraw from parental charge.
Yes. Child support can be varied if there has been a material change in circumstances, such as a significant change in either parent’s income, a change in the child’s needs, or a change in custody arrangements.
The Family Responsibility Office (FRO) in Ontario automatically enforces child support orders. If a payor fails to make payments, the FRO has broad powers to collect arrears including wage garnishment, driver’s licence suspension, and passport denial.
While the Guidelines provide a framework, child support disputes can be complex — especially when dealing with self-employed payors, high incomes, shared custody arrangements, or special expenses. An experienced family lawyer ensures your rights and your children’s needs are fully protected.
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