Canada Child Support Calculator

Estimate monthly child support under the Federal Child Support Guidelines using the 2025 tables for every province and territory, with shared parenting set-off and special expenses.

Reviewed by Dany, RightSums team · Updated

Runs in your browser. Free, no sign-up.

personal-finance · Daily life · Canada

Pick the province or territory where the paying parent lives, enter their annual income and the number of children, and the calculator reads the 2025 Federal Child Support Tables (in force from 1 October 2025) the same way the official Schedule I does: the basic amount for the income row plus a percentage of the income above it, or the $150,000 amount plus a percentage for higher earners. Choose shared or split parenting time to set off both parents' table amounts, and add child care, medical, education or extracurricular costs to split them in proportion to incomes under section 7. You get the table amount, the set-off, each parent's share of expenses, monthly and yearly totals and a step table. Every province and territory is covered; Quebec has its own model when both parents live there.

Accepted inputs

  • Province or territory where the paying parent lives
  • Paying parent's annual income (line 15000)
  • Number of children (1 to 6 or more)
  • Parenting arrangement: majority, shared (40%+) or split
  • Other parent's income and province
  • Special or extraordinary expenses per year (child care, medical, education, extracurricular, other)

Outputs

  • Monthly table amount
  • Set-off for shared or split parenting time
  • Each parent's share of special expenses
  • Total monthly and yearly amount
  • Step-by-step working with the table row used
  • What one more child or $10,000 of income would change
  • Links to the official Justice Canada look-up and Quebec's tool

How to use the Canada Child Support Calculator

  1. Choose the province or territory where the paying parent lives, because the Federal Child Support Guidelines use that parent's table, and enter their annual income from line 15000 of their latest tax return.
  2. Select the number of children and say whether they live mostly with the other parent, or whether parenting time is shared (each parent 40% or more) or split between the parents.
  3. Add the other parent's income and any special or extraordinary expenses such as child care or braces, entered per year after subsidies and tax credits, so they can be shared in proportion to both incomes.
  4. Read the table amount, the set-off where it applies, each parent's share of the expenses and the monthly and yearly totals, then check the figure with Justice Canada's official look-up before you agree or apply for an order.

Frequently asked questions

How much is child support for one child in Alberta?

Under the 2025 Federal Child Support Tables, a paying parent living in Alberta with an income of $45,000 pays $347 a month for one child. At $60,000 the Alberta amount for one child is $495 and for two children $871. The table amount depends only on the paying parent's income, province and the number of children.

How is child support calculated in Ontario for 2 children?

A paying parent in Ontario earning $60,000 pays $911 a month for two children under the 2025 tables, which is $10,932 a year. The tables run in $1,000 income rows: you take the basic amount for the row and add a small percentage of the income above it, so $60,500 gives $919.30. Special expenses such as child care are added on top.

What happens to child support if income is over $150,000?

The tables stop at $150,000. Above that, the Guidelines add a percentage of the extra income: in Ontario for one child it is $1,327 plus 0.76% of the income over $150,000, so a parent earning $200,000 pays $1,707 a month. A court can set a different figure for the part over $150,000 if it finds the formula inappropriate for the children's needs.

How does shared parenting (50/50) affect child support in Canada?

When each parent has the children at least 40% of the time, the usual starting point is to set off the two table amounts. With two children in Ontario, a parent earning $80,000 has a table amount of $1,220 and a parent earning $50,000 has $744, so the higher earner would pay the $476 difference. Courts can adjust this for the extra costs of shared time.

Who pays for daycare and activities on top of child support?

Section 7 special or extraordinary expenses, such as work-related child care, medical premiums, post-secondary fees and extraordinary activities, are shared in proportion to incomes after subsidies and tax credits. If child care costs $12,000 a year and the parents earn $80,000 and $50,000, the higher earner pays 61.5%, or $615.38 a month, on top of the table amount.

Sources

The rates and rules in this tool come from:

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