Determining child support in Ontario is not always as straightforward as looking at a paycheque. Many parents are surprised to learn that child support is based on more than just employment income.
A common question is:
“What income counts for child support in Ontario?”
Below, we explain how income is calculated under Ontario family law, what types of income are included, and why accurate financial disclosure is critical.
How Is Income Determined for Child Support?
In Ontario, child support is calculated using the Federal Child Support Guidelines. The starting point for determining income is usually a parent’s Line 15000 income on their personal income tax return (previously Line 150).
However, courts are not limited to this number if it does not fairly reflect a parent’s true income.
Types of Income That Count for Child Support
Employment Income
This includes:
- Salary and wages
- Overtime pay
- Bonuses and commissions
- Tips and gratuities
- Cash income
- Rental income
- Self-employment income
- Investment income
Even if income fluctuates year to year, courts may average income over several years to determine an appropriate child support amount.
Self-Employment Income
Self-employed parents are often subject to closer scrutiny. Courts may look beyond reported income to consider:
- Business profits
- Personal expenses paid through the business
- Retained earnings
- Cash income
If income is not clearly reported or does not accurately reflect the payor’s ability to pay support, the court may impute income, meaning it assigns an income amount based on evidence.
Investment and Property Income
This can include:
- Rental income
- Dividends
- Interest income
- Capital gains (in some circumstances)
Investment income is commonly included when determining child support obligations.
Government Benefits and Other Payments
Certain benefits may count as income, including:
- Employment Insurance (EI)
- Disability benefits
- Workers’ compensation benefits
- Social assistance
Each case is assessed individually to ensure fairness.
Bonuses, Commissions, and Variable Income
If income varies, courts may:
- Average income over the past 2–3 years
- Include bonuses and commissions where they are a regular part of earnings
When Income May Be Imputed
Courts may impute income if a parent:
- Is intentionally underemployed or unemployed
- Fails to provide full financial disclosure
- Is paid in cash or through non-traditional means
- Diverts income through a corporation or third party
Imputed income ensures that child support reflects a parent’s true earning capacity, not just what is reported on paper.
Why Accurate Financial Disclosure Is Critical
Ontario family law requires full and honest financial disclosure. Failure to do so can result in:
- Court penalties or cost awards
- Retroactive child support orders
- Imputed income assessments
- Lengthy and expensive litigation
Providing accurate income information helps avoid disputes and ensures child support is fair and appropriate.
Why Legal Advice Matters for Child Support Income Issues
Income determination can be complex, especially where income is irregular, self-employment income, or disputed. A family lawyer can:
- Review financial documents
- Identify missing or undisclosed income
- Ensure proper application of the Child Support Guidelines
- Advocate for a fair child support outcome
Speak with an Ontario Family Lawyer About Child Support
If you are paying or receiving child support, understanding what income counts is essential to protecting your rights and your child’s best interests.
At DV Law, our Ontario family lawyers can:
- Assess how income should be calculated
- Assist with child support negotiations
- Bring or defend court applications
- Advise on imputed income and disclosure issues
Contact DV Law today to book a confidential consultation and receive clear, practical advice about your child support obligations.



