Child support and parenting time: what Canadian parents should know

In short: In Canada, the amount of child support is set by a national rulebook — the Federal Child Support Guidelines — but the machinery around it is provincial. Each province runs its own child support service to calculate or update the number out of court, and its own enforcement program to collect it if payments stop. Separately, since 2021 the vocabulary of "custody" and "access" has shifted to parenting time and decision-making responsibility. CourtStairs answers questions like these in plain language, with citations to the actual statute or program that applies to you.

Child support and parenting are the two questions that dominate every separation involving kids. The good news is that support is more predictable than most people expect, because a formula does most of the work. The catch is that who runs the formula, and who enforces it, changes at the provincial border. This post walks through all three moving parts: the federal number, the provincial services, and the new parenting language.

How is child support calculated in Canada?

Child support is calculated by a national formula — the Federal Child Support Guidelines — using the paying parent's income, the number of children, and the province where that parent lives. The Federal Child Support Guidelines (SOR/97-175) set the baseline for almost every child support order in Canada. The core is the table amount — a monthly figure that turns on just three inputs:

• the paying parent's gross annual income;
• the number of children for whom support is owed; and
• the province or territory where the paying parent lives.

The tables are built in $1,000 income increments. Below a floor of $12,000 of income, no support is payable. As an illustration straight from the Guidelines, a parent in British Columbia earning $51,250 a year with two children pays about $811 a month — the base amount for that income band plus a set percentage of the income above it.

On top of the table amount, parents share "special or extraordinary expenses" under section 7 — childcare, health premiums, orthodontics, tutoring or post-secondary costs — usually in proportion to their incomes. And where a child spends at least 40% of the time with each parent, the amount can be adjusted to reflect that both households carry costs. The Guidelines apply whether the parents were married or not; the same table is used by provincial family law across the country.

Do you have to go to court to set or update child support?

Usually not. Most provinces run an out-of-court child support service that can set or recalculate the guideline table amount from income-tax data, and a separate enforcement program that collects it — so a judge is rarely needed for the number itself. Here is where jurisdiction matters. You do not necessarily need a judge to set or change the guideline number, and you never have to chase an unpaid payer yourself. Most provinces run two separate programs — one to calculate or recalculate the amount out of court, and one to enforce it.

The calculation services are the underused half of this picture. Rather than filing a court application, eligible parents can have the table amount set — or updated once income changes — administratively, based on tax information. Saskatchewan's Child Support Service, for example, will recalculate an order that is more than six months old, for free and without a court hearing. Ontario's online Child Support Service does the same for a modest per-parent fee.

The enforcement programs are the safety net. Once an order or a calculation is filed with them, they do the collecting. Ontario's FRO and Manitoba's MEP can take strong steps if payments fall behind.

1. Support order or calculation is filedThe enforcement program registers the amount owed and starts monitoring payments.
2. Payments come in and go outThe program collects from the payer, records it, and forwards it to the recipient — keeping a running balance.
3. Arrears build upIf the payer falls behind, enforcement tools kick in without a fresh court order each time.
4. Collection measuresWage garnishment, seizing bank accounts and tax refunds, suspending a driver's licence, passport or federal licence, and reporting to a credit bureau.

Did Canada replace "custody" and "access" with parenting time?

Yes. On March 1, 2021, amendments to the federal Divorce Act replaced "custody" and "access" with decision-making responsibility and parenting time, and several provinces adopted the same terms for unmarried parents. On March 1, 2021, amendments to the federal Divorce Act retired the old language of parenting. Out went "custody" and "access"; in came terms that describe what parents actually do:

• Decision-making responsibility — who makes the major decisions about a child's health, education, religion and significant activities (formerly the heart of "custody").
• Parenting time — the schedule of time each parent spends with the child, during which they make day-to-day decisions (formerly "access").
• Contact orders — time for important non-parents, such as grandparents.

The shift is more than cosmetic. It reframes parenting around responsibilities rather than ownership, which lowers the temperature of disputes that used to sound like a contest over a prize. What did not change is the guiding test: every parenting decision is measured against the best interests of the child, with the child's safety, security and well-being as the primary consideration. The Act also added structured relocation rules — notice requirements and rules about who must justify a proposed move.

Several provinces have adopted the same vocabulary for unmarried parents, whose cases run under provincial family law rather than the Divorce Act. Ontario's Children's Law Reform Act, for instance, now speaks of "parenting time" and "decision-making responsibility" too, so the language largely lines up whether your file is federal or provincial. For the wider picture, see our divorce and family law basics for Canada and, if you were never married, common-law partner rights across Canada.

Does more parenting time reduce child support?

It can, but only past a threshold. Where a child lives with each parent at least 40% of the time (shared parenting), a court can adjust support to reflect both incomes and the cost of two homes; below 40%, the payer generally owes the full table amount regardless of parenting time. The two topics meet at the 40% threshold. Below it, the parent with less time generally pays the full guideline table amount. At or above it — shared parenting — a court can adjust support to reflect both incomes and the reality that two homes cost more to run. This is why parenting schedules and support are often negotiated together: a change in the schedule can change the dollars. Note, though, that the out-of-court calculation services usually handle only the straightforward table amount; genuine disputes over parenting or shared-parenting set-offs still tend to need a court or a mediated agreement.

Where does CourtStairs fit in?

The through-line is federalism: the Guidelines give you a national number, but the service that calculates it and the program that enforces it are your province's, and the parenting language now flows from the 2021 Divorce Act reforms. CourtStairs answers everyday questions — "how much is child support on my income?", "how do I update an old order?", "what can the enforcement office do if he stops paying?" — with citations to the primary source that applies to you, so you can read the rule yourself.

This post is general information, not legal advice. Support amounts, program fees, eligibility rules and parenting standards depend on your income, your province and your specific facts, and they change over time. Confirm the current rule against the official Guidelines, your provincial child support service, or a family lawyer before acting on it.