You’re trying to figure out what child support costs are or what you’re entitled to receive. How much is child support in Ontario for one child?
The amount depends entirely on the payor’s income—there’s no flat rate. Let me break down how these calculations actually work so you know what to expect.
Federal Child Support Tables
Canada uses federal guidelines that set amounts based on income and province. Ontario has its own table showing exact monthly amounts for different income levels.
These aren’t suggestions—they’re legally required amounts courts enforce. The tables ensure consistent, fair support across cases.
How do the Tables Work?
Find the payor’s annual gross income in the left column. Look across to the column showing one child. That’s the monthly support amount.
For example, someone earning $50,000 annually pays $434 per month for one child in Ontario. At $75,000 income, it’s $669 monthly.
At an income of $100,000, support is $883 per month. The amounts increase as income rises.
Income Brackets Matter
Tables show income amounts up to $150,000 in detailed brackets. For amounts above $150,000, calculations follow a percentage formula, added to the table amount.
Higher earners pay proportionally more. Someone earning $200,000 might pay $1,500+ monthly for one child.
Understanding child support principles helps you navigate these calculations.
What Income Counts?
Child support calculations use gross annual income before taxes and deductions. Everything counts—employment income, bonuses, commissions, dividends, and rental income.
Employment Income
Your salary, wages, bonuses, overtime, and commissions all factor in. Take-home pay doesn’t matter—courts use gross income from line 15000 of your tax return.
Self-employed people face extra scrutiny. Business expenses claimed for tax purposes might get added back if they’re really personal expenses.
Other Income Sources
Investment returns, rental property income, disability benefits, and pension income all count. Courts look at complete financial pictures.
Even EI benefits and workers’ compensation are included. Virtually all income streams factor into support calculations.
What Doesn’t Count?
Child tax benefits, GST credits, and social assistance generally don’t count toward income for support purposes. These benefits are meant to help support children, not be clawed back.
Quick Reference Amounts
Here are common income levels and monthly support for one child in Ontario:
$30,000 income = $256/month
$40,000 income = $340/month
$50,000 income = $434/month
$60,000 income = $528/month
$75,000 income = $669/month
$100,000 income = $883/month
$150,000 income = $1,355/month
These are base table amounts. Section 7 expenses for daycare, medical costs, and activities add to these amounts.
Section 7 Extraordinary Expenses
Beyond base support, parents share certain additional costs in proportion to their income. These are called Section 7 expenses and significantly impact total support.
What Qualifies as Section 7?
Common extraordinary expenses:
- Childcare costs for work or education
- Health insurance premiums and uncovered medical expenses
- Orthodontics and dental work
- Tutoring and special education needs
- Extracurricular activities (within reason)
- Post-secondary education costs
Proportional Sharing
Parents split Section 7 expenses based on income ratios. If you earn 60% of the combined income, you pay 60% of these expenses.
Calculate each parent’s percentage, then apply it to the expenses. This happens on top of base table support amounts.
Child’s Contribution Expected
Older children should contribute to their own expenses through part-time work. Courts expect teenagers earning income to help pay their costs.
This reduces what parents split proportionally. A teen earning $5,000 annually might cover their own clothing and entertainment.
Understanding financial aspects helps you correctly calculate total support.
Shared Custody Adjustments
When kids spend 40%+ time with each parent, support calculations change. Shared custody doesn’t mean no support—usually, one parent still pays the other.
The Set-Off Approach
Courts calculate what each parent would pay if they were the non-custodial parent. The higher amount minus the lower amount equals what the higher earner pays.
If you owed $800 and your ex owed $400, you would pay $400 in net monthly payments. This accounts for both parents’ direct expenses during their parenting time.
Other Factors Considered
Courts also examine actual expenses each household bears. Who pays for clothing, school supplies, activities, and other costs?
Actual 50/50 time-sharing with similar incomes might result in no support being exchanged. But equal time doesn’t automatically mean zero support.
Split Custody Situations
When you have multiple children, and each parent has primary custody of at least one child, split custody rules apply.
How Split Custody Works?
Calculate what each parent would owe for the children living with the other parent. The higher amount minus the lower amount is what the higher earner pays.
This is less common than shared custody, but it occurs in families where siblings live in different households.
Undue Hardship Claims
Sometimes, payors claim that table amounts create undue hardship. This isn’t easy to prove and rarely succeeds.
What Qualifies as Hardship?
Unusual debts incurred to support disabled family members, extraordinary access costs, or legal obligations to other dependents might qualify. Simply having high expenses doesn’t count.
Courts set a high bar for reducing child support. Children’s needs take priority over parents’ lifestyle preferences.
Burden of Proof
You must prove your household has a lower standard of living than the recipient’s household after paying support. This requires detailed financial disclosure and analysis.
Most undue hardship claims fail. Courts prioritize children’s needs over parents’ financial complaints.
Changes Requiring Recalculation
Support amounts aren’t forever fixed. Material changes in income require recalculating support.
Income Increases
When your income rises significantly, support increases. Your ex can apply for an increase in support based on your higher earnings.
Don’t wait for them to pursue it—proactively adjust support when income changes substantially. This prevents arrears accumulation.
Income Decreases
Job loss or income reduction justifies reduced support—file variation applications promptly when circumstances change.
Continuing to pay amounts you can’t afford creates problems. Courts can retroactively reduce support from the date you filed your application.
Understanding support modification helps you handle changes properly.
Self-Employment Income
Self-employed parents face extra scrutiny. Business expenses claimed for tax purposes might not reflect actual income available for support.
Adding Back Personal Expenses
CRA-approved business expenses that are really personal get added back to income.
Company car used for personal driving, home office exceeding actual business use, and meals beyond legitimate business needs all get added.
Courts examine whether expenses legitimately reduce income available for support or reduce taxable income.
Imputing Income
If courts believe you’re understating income, they might impute a higher income. Deliberately earning less to avoid support doesn’t work.
Courts consider earning capacity, not just actual earnings, if they suspect income manipulation.
Online Calculators
The federal government provides online child support calculators. These tools show amounts based on your province, income, and number of children.
Using Calculators Properly
Enter accurate gross annual income. Select Ontario as your province and input one child.
The calculator shows monthly base support amounts. Remember to add Section 7 expenses to these amounts.
Calculators provide estimates but don’t replace legal advice for complex situations.
Enforcement Through FRO
Ontario’s Family Responsibility Office automatically enforces child support orders. Payments flow through FRO rather than directly between parents.
Why FRO Exists?
FRO tracks payments, pursues arrears, and enforces collection when payors don’t pay. This protects recipients from having to chase payments themselves.
The system ensures consistent support reaches children regardless of parental cooperation.
Consequences of Non-Payment
FRO can garnish wages, seize tax refunds, suspend driver’s licenses, and report to credit bureaus. Don’t mess around with child support obligations.
Understanding how to create agreements helps you establish appropriate payment structures.
Retroactive Support
Courts can order retroactive support for past periods when proper support wasn’t paid. You might owe years of back support plus interest.
Time Limits
Courts typically look back no more than 3 years for retroactive support. More extended periods are possible if the payor actively hid income or avoided obligations.
Don’t delay addressing support issues. The longer you wait, the more potential retroactive liability accumulates.
Helpful Information:
Further Details:
Federal Child Support Tables
Visit the Department of Justice Canada for official child support tables, calculators, and detailed guidelines.
FAQs
Is there a minimum child support in Ontario?
No set minimum exists. Support is based on the payor’s income. Very low incomes might result in minimal support—someone earning minimum wage pays less than higher earners proportionally.
Does child support change with shared custody?
Yes. When children spend 40%+ time with each parent, special calculations apply. Usually involves a set-off approach where the higher earner pays the difference between what each would owe.
Can we agree to a lower-than-table amount?
Not easily. Courts rarely approve below-guideline support. Children’s entitlement takes priority. Agreements for less require exceptional circumstances and court approval.
What if I lose my job?
File for variation immediately. Support can be reduced based on actual income loss. Don’t just stop paying—get an official modification to prevent arrears.
Does my new spouse’s income affect support?
No. Your new spouse’s income doesn’t reduce what you pay or increase what you receive. Child support is based on the biological/adoptive parents’ income only.
How often does support get recalculated?
Whenever income changes significantly, many agreements include annual disclosure requirements. Material income changes warrant recalculation anytime.
What if my ex won’t disclose income?
The court can compel financial disclosure. File a motion for disclosure if cooperation fails. Courts take non-disclosure seriously and might impute income.
Can child support be paid as a lump sum?
Rare but possible. Courts prefer ongoing monthly support. Lump sums require exceptional circumstances and careful legal structuring.
Does support cover everything?
Base support covers basic needs. Section 7 expenses for daycare, medical, and activities are added on top. Parents split these proportionally beyond base support.
What happens if I overpay?
Credit applies to future support. If you’ve paid more than you owe, it reduces your upcoming obligations. Keep detailed payment records.
Can support be modified retroactively?
Yes. Courts can typically order retroactive adjustments for up to three years. Both increases and decreases might apply retroactively from the application date.
What if the table amount seems too high?
Table amounts are mandatory unless undue hardship is proven. This isn’t easy. Courts prioritize children’s needs over parents’ lifestyle preferences.
