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Child Support Calculator for Ontario
Facts checked against official sources on September 30, 2026
Estimate monthly child support payments in Ontario using the Federal Child Support Tables (2025 update).
How child support works in Ontario
Child support in Ontario is calculated using the Federal Child Support Guidelines, which provide province-specific tables based on the paying parent's gross annual income and the number of children. The tables account for Ontario's tax rates, so amounts differ slightly from other provinces.
In Ontario, divorce proceedings are handled by the Superior Court of Justice. The key provincial family law legislation is the Family Law Act (Ontario). For a detailed overview of family law in Ontario, see our Ontario divorce timeline.
Filing court: Superior Court of Justice
Key legislation: Family Law Act (Ontario)
Child support calculator
Estimate monthly child support using the Federal Child Support Tables (2025 update).
Step 1 of 3
Which province or territory?
Choose where the parent who'd pay support lives.
If that parent lives outside Canada, select the province where the other parent lives.
How child support is calculated in Ontario
Federal Child Support Table amounts for Ontario
| Annual income | 1 child | 2 children | 3 children |
|---|---|---|---|
| $30,000 | $240/mo | $501/mo | $671/mo |
| $50,000 | $450/mo | $744/mo | $1,003/mo |
| $75,000 | $695/mo | $1,144/mo | $1,501/mo |
| $100,000 | $932/mo | $1,517/mo | $1,984/mo |
| $125,000 | $1,131/mo | $1,829/mo | $2,388/mo |
| $150,000 | $1,327/mo | $2,135/mo | $2,781/mo |
Source: Federal Child Support Tables (2025 update). Full tables at justice.gc.ca
What affects the amount
Based on the Federal Child Support Guidelines (SOR/97-175), using the 2025 Federal Child Support Tables (in force October 1, 2025). Data sourced from the official tables at laws-lois.justice.gc.ca. This tool provides estimates only and does not constitute legal advice.
Child support in Ontario: examples from the 2025 tables
These are monthly base amounts from the Federal Child Support Tables in force since October 1, 2025, for a parent paying support in Ontario. They don't include special or extraordinary expenses (section 7), and shared or split parenting changes the calculation. Use the calculator above for your own numbers.
| Annual income | 1 child | 2 children | 3 children | 4 children |
|---|---|---|---|---|
| $30,000 | $240 | $501 | $671 | $718 |
| $40,000 | $334 | $609 | $828 | $1,008 |
| $50,000 | $450 | $744 | $1,003 | $1,216 |
| $60,000 | $554 | $911 | $1,182 | $1,412 |
| $70,000 | $648 | $1,072 | $1,395 | $1,648 |
| $80,000 | $743 | $1,220 | $1,602 | $1,897 |
| $90,000 | $841 | $1,372 | $1,797 | $2,145 |
| $100,000 | $932 | $1,517 | $1,984 | $2,366 |
| $125,000 | $1,131 | $1,829 | $2,388 | $2,846 |
| $150,000 | $1,327 | $2,135 | $2,781 | $3,310 |
At $16,000 or less, the table amount is $0. Above $150,000, the amount is the $150,000 figure plus 0.76% (1 child), 1.22% (2), 1.54% (3) or 1.86% (4) of income over $150,000, and a court may set a different amount.
Orders and agreements made before October 1, 2025 aren't updated automatically. To change an existing order, you need an agreement, a court variation or a recalculation service.
Federal Child Support Table Lookup (2025)
Department of Justice Canada
Disclaimer: This calculator provides estimates based on the Federal Child Support Tables (2025 update) for Ontario. It is for informational purposes only and does not constitute legal advice. Actual support amounts may differ based on your specific circumstances. Consult a family lawyer for advice tailored to your situation.