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Adult / University Child Support Calculator

Estimate how much each parent should contribute toward a child's post-secondary education, after factoring in the child's own contribution.

Estimate only — not legal advice. Assumes the child qualifies as a "child of the marriage."
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Parents' Income
Post-Secondary Costs
Parental Contribution Results
Enter both incomes and the annual cost, then click Calculate Contribution.
Quick Answer

In Ontario, child support can continue past 18 for an adult child who remains a 'child of the marriage' — usually because they are enrolled full-time in post-secondary education or cannot become self-supporting due to illness or disability. For a child over the age of majority, the court may order the Federal Child Support Guidelines table amount or a different amount it considers appropriate given the child's means, needs, and circumstances, and both parents can be expected to contribute.

📋 About Post-Secondary Child Support
Post-secondary costs are a Section 7 special expense under the Federal Child Support Guidelines, shared between parents proportionate to income — but courts also commonly expect the child to contribute from summer earnings, part-time work, RESP funds, scholarships, or student loans (the “Farden factors”) before the parents split the remaining balance.
The child must still qualify as a “child of the marriage” — generally requiring full-time enrollment in a reasonable program, though some part-time or gap-year circumstances can still qualify depending on the facts.
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Section 7 Expense

Post-secondary costs are shared proportionate to income, like other special expenses.

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Child's Own Contribution

Courts expect the child to contribute from summer earnings, OSAP, or RESP funds where reasonable.

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"Child of the Marriage" Status

Generally requires full-time enrollment — this can affect whether support continues at all.

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Living-Away Adjustments

Base table support may be reduced or adjusted when a child lives away at school for part of the year.

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Questions About Post-Secondary Support?

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