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Who Pays for Braces and Dental Work Under Child Support in Ontario?

See when the other parent must share braces and dental bills in Ontario, how the $100 threshold works, and how costs are split in proportion to income.

Family Law4 min readTSLBy the Treadstone Law Team · OntarioUpdated October 28, 2026
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Key takeaways
  • Health-related costs, including orthodontic treatment, can be shared as a special expense when they exceed insurance reimbursement by at least $100 a year.
  • The default split is in proportion to each parent's income, after deducting any contribution from the child.
  • The share of a child's dental insurance premiums attributable to the child can also be claimed.
  • To claim special expenses through FRO you need receipts.

An orthodontist quotes a large bill for braces, and you are not sure whether the other parent has to help. Whether and how the cost is shared depends on your order or agreement and your situation.

This article explains how braces and other dental costs are treated as special expenses under the child support rules, how the cost is usually divided, and what paperwork you need. Your own order or agreement controls, so read it first.

Braces as a special or extraordinary expense

The Guidelines let a court, on either parent's request, provide for an amount to cover all or part of certain listed special or extraordinary expenses. In Justice Canada's example, a special expense is paid in addition to the basic table amount.

Health-related expenses are on that list. They count where they exceed insurance reimbursement by at least $100 annually, and orthodontic treatment is named as an example. Justice Canada's guide says the same: health costs count only above $100 a year not covered by insurance, with orthodontics, counselling, medication and eye care as examples. The portion of medical and dental insurance premiums attributable to the child is a separate category.

The rules referred to here are the federal Guidelines. Ontario has its own guidelines that are similar and apply to unmarried or separated couples under the Family Law Act, so check the section numbers and your own order.

How the cost is divided

Special expenses are shared by the parents in proportion to their incomes, after deducting any contribution from the child. The court must also take into account subsidies, benefits and income tax deductions or credits relating to the expense.

Justice Canada gives an example. A parent earning $80,000 of a combined $155,000 paid about $516.13 per month toward a $12,000 yearly special expense, in addition to a $765 basic table amount. That shows the method: add the incomes, work out each parent's share of the total, and apply that share to the cost.

Start with the insurance. Many dental plans cover part of orthodontic work, so only the portion not reimbursed is in play, and only if it passes the $100 yearly threshold.

Other costs that may be shared

Type of expenseWhat the rules say
Orthodontic and other health costsCovered where they exceed insurance by at least $100 a year
Child's share of medical or dental premiumsCovered as the portion attributable to the child
Child care for work, illness, disability or educationCovered as a listed expense
Extracurricular activitiesCovered if extraordinary
Primary or secondary school educationCovered if extraordinary

Common issues and limits

What to do next

Deal with the cost before the treatment starts if you can, since agreement in advance avoids arguments later.

Frequently asked questions

Does the other parent have to pay half of the braces?

Not necessarily half. Special expenses are shared in proportion to each parent's income, after deducting any contribution from the child. A parent with a higher income usually carries a larger share.

Is there a minimum amount before braces count?

Health-related expenses count where they exceed insurance reimbursement by at least $100 annually, and orthodontic treatment is a named example. Orthodontic bills are often well above that, but check what your insurer pays.

What paperwork do I need to claim through FRO?

Receipts are required to claim special expenses through FRO, and Ontario.ca lists orthodontics and prescription drugs among the examples. Keep the quote, invoices and proof of payment.

Can I ask the court to include braces if my order is silent?

A court may, on either parent's request, provide for an amount to cover listed special or extraordinary expenses. Whether it does depends on your order, your facts and timing, so a lawyer can confirm your options.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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