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Child Support Estimator

A fast, honest estimate of the Ontario table amount under the Federal Child Support Guidelines. Takes 30 seconds. No email required.

Ontario Table Amount Estimator

Estimate your monthly child support

Based on the Federal Child Support Guidelines, Ontario tables. Enter the payor's gross annual income and number of children to see the approximate table amount.

Income before tax, from line 15000 of T1 return.
Estimated Monthly Table Amount 2025 tables (in force 1 October 2025)

$0/ month

Important, Read This

This calculator shows the Ontario table amount under the Federal Child Support Guidelines, using the 2025 Federal Child Support Tables (in force 1 October 2025). It is an estimate based only on the income you enter, not a final number for your case. It is not legal advice and does not create a solicitor-client relationship with Lexaltico LLP.

Your actual obligation may differ because of Section 7 special or extraordinary expenses (child care, post-secondary, health/dental, extracurriculars), shared custody (40%+ time) which uses the set-off method, split custody arrangements, undue hardship claims, or high incomes over $150,000 where the court has discretion.

For an accurate number specific to your situation, book a no-obligation initial assessment or review the official tables at Justice Canada, Federal Child Support Guidelines.

Next Step

Have a lawyer review your support obligation

An estimate tells you the shape of the answer. Whether it applies to your situation depends on documents and facts a calculator cannot see. Most matters qualify for a no-obligation initial assessment.

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Frequently Asked Questions

No. It applies the federal Child Support Guidelines table to the figures you enter and gives an estimate. A court order or agreement depends on established income, the parenting arrangement, and any special or extraordinary expenses.
Generally line 15000 of the payor's tax return, subject to adjustments. Self-employment, dividends, bonuses and income from a corporation are treated differently and often need a closer look than a calculator can give.
No. It covers ordinary day-to-day costs. Childcare needed for work, health costs not covered by insurance, and certain educational and extracurricular costs are shared separately in proportion to income.
Where a child spends at least forty percent of the time with each parent the calculation changes, and it becomes more discretionary. The table figure alone will not give you the answer.
Yes. Child support is based on income, so when income changes materially the amount should change with it, by agreement or on an application to vary.
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