Ensuring Their Future: How is Child Support Calculated in Toronto?

March 17, 2026

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The Financial Reality of Raising a Child in Ontario


According to MoneySense.ca, the average cost of raising a single child to the age of 18 in Ontario is approximately $243,660—and that is only for the very bare essentials. This figure does not account for the rising costs of post-secondary education, nor does it consider the unique circumstances of children with special educational or medical needs. It excludes the "extras" that define a childhood: extracurricular sports, music lessons, travel, and summer camps.


Ideally, every parent contributes as much as they can to the support of their children, both financially and emotionally. However, when a relationship ends, the seamless management of a shared household budget disappears. After a divorce or separation, one parent may find themselves bearing the brunt of the financial burden alone, even when the other parent is capable of contributing. Conversely, a paying parent may face financial hardship due to a job loss or injury, making existing payments unsustainable.


At Sterling Law, founded in 1992 by Helen Sterling Clarke, we provide the comfort and support you need during these challenging transitions. With over 30 years of experience serving Brampton, Toronto, and the Greater Toronto Area (GTA), our client-focused approach ensures that your needs—and the needs of your children—are our primary result.


The Legal Framework: The Child Support Guidelines

In Toronto and throughout Ontario, child support is not a matter of guesswork. It is governed by the Child Support Guidelines. These are a set of rules and tables used to determine the amount of support a paying parent must contribute.


The underlying principle of Ontario law is that children have a legal right to benefit from the financial means of both parents. This right belongs to the child, not the parent, which means child support cannot be "waived" or negotiated away in a manner that leaves the child with insufficient resources.


Who is the Payor?

Typically, the parent with whom the child lives most of the time is the "Recipient," and the parent who lives outside the primary home is the "Payor." However, the definition of a parent in Ontario is broad. Sometimes the payor is not the biological parent but someone who has "stood in the place of a parent" (often referred to as in loco parentis), such as a step-parent who has formed a significant parental bond with the child.


Step 1: Calculating "Base" Child Support (The Table Amount)

The first component of child support is often referred to as Base Child Support. This is a fixed monthly amount intended to cover the child's basic necessities, such as food, clothing, and shelter.


How the Table Works

The amount of base support is determined by three main factors:

  1. The Payor’s Annual Income: This is usually based on the "Total Income" line of their T1 General Income Tax Return from the previous year.
  2. The Number of Children: The amount increases with each additional child.
  3. The Province of Residence: Because the cost of living and tax rates vary by province, Ontario has its own specific tables.

For example, a parent in Toronto earning $70,000 per year with two children will pay a different "Table Amount" than a parent earning $100,000 with one child.


Parenting Time Arrangements

The calculation can shift depending on the living situation:

  • Primary Care: If the child spends more than 60% of their time with one parent, the other parent typically pays the full Table Amount.
  • Shared Parenting: If the child spends at least 40% of their time with each parent, the court may look at the "offset" amount (the difference between what each parent would pay the other) and consider the increased costs of maintaining two suitable homes for the child.


Step 2: Special or Extraordinary Expenses (Section 7)

Base support only covers the "bare essentials." In many Toronto families, children have expenses that go beyond food and shelter. These are known as Section 7 Expenses.


To qualify as a Section 7 expense, the cost must be necessary (in the child’s best interest) and reasonable (given the combined means of the parents and the family's spending habits before the separation).


Common Section 7 expenses include:

  • Childcare: Expenses incurred due to the custodial parent's employment, illness, or education.
  • Medical/Dental Insurance: Premiums and unreimbursed healthcare costs (orthodontics, therapy, etc.).
  • Extraordinary Educational Expenses: Private school tuition or tutoring.
  • Post-Secondary Education: Costs for college or university.
  • Extracurriculars: Competitive sports, specialized arts programs, or high-level music lessons.


In most cases, these expenses are shared by the parents proportionally based on their respective incomes. If Parent A earns $60,000 and Parent B earns $40,000, Parent A would typically cover 60% of the Section 7 costs.


Changing the Order: When Life Evolves

Child support is rarely "set it and forget it." As children grow and parents' careers evolve, the support amount may need to be adjusted.


Seeking a Decrease

If you are the Payor and your financial situation has changed—perhaps you have lost your job, suffered an injury, or seen a significant decrease in commissions—you have the right to seek a variation. However, time is of the essence. The longer you wait to seek a decrease, the more difficult it becomes to justify the change retroactively. You will be required to provide clear documentation of your income and a valid justification for the decrease.


Seeking an Increase

If you are the Recipient and you know the Payor’s income has increased significantly, you are entitled to ask for an increase. At Sterling Law, we caution clients not to wait. If you are aware of your entitlement but take no steps to obtain it for an extended time, a court may eventually find that you have effectively waived your right to those retroactive payments.


The Sterling Approach to Child Support

At Sterling Law, we provide more than just calculations; we provide a strategy. Our three-step approach is designed to protect you from the moment you call:

  1. Immediate Guidance: We answer your questions as soon as possible to put your mind at ease and start planning for your changed circumstances.
  2. Professional Burden-Sharing: Once retained, we take over the timelines and legal complexities, ensuring you aren't solving these problems alone.
  3. Decisive Action: We move quickly to protect your financial rights and assert the needs of your children, aiming for the most positive outcome possible.


Our reputation in the Region of Peel and the GTA is built on client-focused service. We understand that every family is unique, and we listen to what is important to you to find the most effective legal path forward.


Take Control of Your Financial Well-Being

Navigating the Child Support Guidelines in Toronto can be complex, but you don't have to do it alone. Whether you are seeking fair support for your child or need to adjust your payments to reflect your current reality, having an experienced legal team is essential.


Why Choose Sterling Law?

With over three decades of experience, Helen Sterling Clarke and her team specialize in empowering families. We offer full or partial representation (unbundled legal services) to fit your specific needs and budget. From establishing base support to litigating complex Section 7 expenses, we are the GTA community’s trusted partner in family law.


Don't allow time to pass and jeopardize your rights. Take advantage of our expertise and ensure that your children are provided for fairly and sustainably.

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