Family arbitration in Ontario is a private trial. You and your spouse hire an arbitrator, usually a senior family lawyer or a retired judge, who hears your case and makes a binding decision called an award. It’s faster and more private than family court, and you choose your judge. But it’s still adversarial, you pay the arbitrator as well as your own lawyers, and the decision is theirs, not yours.

This guide explains how divorce arbitration works in Ontario, what the law requires before an award can be enforced, what it costs, how mediation-arbitration combines the two, and how to decide between arbitration, mediation and court.

What is family arbitration?

Family arbitration is a form of alternative dispute resolution where a neutral third person decides the issues in your separation instead of a judge. Ontario’s Family Law Act and the Arbitration Act, 1991 govern it, and the award can be enforced through the Superior Court of Justice the same way as a court order.

An arbitrator can decide anything that could go into a separation agreement:

• Parenting time and decision-making responsibility
• Child support and spousal support
• Dividing property and the equalization payment
• The matrimonial home

What an arbitrator can’t do is grant the divorce itself. Only a court can end a marriage under the Divorce Act. In practice, the arbitration settles the issues and the divorce follows as an uncontested application.

Arbitration is not mediation

People often search for the two together, but they’re opposites in one way. A mediator helps you reach your own agreement and decides nothing. An arbitrator decides for you. In arbitration there’s no mediator in the room, only the private judge and, usually, two lawyers. Our guide to family mediation in Ontario explains the other process.

How the family arbitration process works in Ontario

1. Both of you agree to arbitrate, after the dispute has arisen. Ontario law says a family arbitration agreement signed before the dispute exists, for example in a marriage contract, is unenforceable.
2. Screening. Each of you is screened separately for family violence and power imbalances, by the arbitrator or a qualified screener, before you sign. The arbitrator must consider the results throughout.
3. Independent legal advice. Each of you gets advice from your own lawyer before signing the arbitration agreement, and the lawyer signs a certificate of independent legal advice.
4. The arbitration agreement. It’s in writing, names the arbitrator, confirms the arbitration will follow Ontario or other Canadian law, sets out your appeal rights, and attaches the certificates. The regulation prescribes what it must contain.
5. Disclosure and preparation. Full financial disclosure from both of you, then documents, witness statements and briefs, usually prepared by your lawyers.
6. The hearing. Like a trial, but in a boardroom or by video, on dates you choose. Some arbitrations are decided on documents alone, which is faster and cheaper.
7. The award. A written decision with reasons. Support awards can be filed with the Family Responsibility Office; property and parenting awards can be enforced through the court.

The arbitrator must have completed the family arbitration training approved by the Attorney General, including screening training, and must keep a record of the arbitration for at least ten years.

What family arbitration costs in Ontario

Nobody publishes a fixed price, because the cost depends on how many issues you arbitrate and how much lawyer time it takes to prepare. Here’s what goes into the bill:

• The arbitrator’s fees, usually hourly at senior-lawyer rates, shared between you. In court, the judge is free.
• Your own lawyer’s fees, for preparation, disclosure, briefs and the hearing. Both of you pay your own.
• Screening and reporting, if a separate screener is used.
• Experts, such as a pension valuation or a business valuator, if the issues need them.

For a narrow dispute decided on documents, arbitration can cost a fraction of a court case. For a full hearing on every issue, it can cost as much as litigation or more, because you’ve added the judge’s bill. Legal Aid Ontario generally doesn’t fund arbitration. For comparison, Ontario family lawyers reported a median fee of $10,000 per spouse for a contested divorce and $20,000 to $50,000 for a trial, in Canadian Lawyer’s 2024 survey. Our guide to divorce lawyer fees in Ontario goes through hourly rates and retainers, and how much mediation costs shows the other end of the range.

How long does family arbitration take?

Usually months rather than years. Court conferences are often months apart and trial dates a year or more out; an arbitrator can book a hearing within weeks and deliver an award within weeks of it. Interim decisions, for example on a temporary parenting schedule, can come in days. A full arbitration with disclosure, briefs and a multi-day hearing still commonly runs three to twelve months.

Can you appeal a family arbitration award?

Only within the limits you agreed to. Your arbitration agreement must say whether an appeal is allowed on questions of law, of fact, or both, or only as the Arbitration Act provides. Beyond that, a court can set an award aside for serious problems: no valid agreement, no screening, no independent legal advice, or an unfair process. Ontario courts give arbitrators’ decisions significant deference, so once an award is made it’s very hard to undo. That finality is the point of arbitration, and it’s also the risk.

Mediation-arbitration: the hybrid

Mediation-arbitration, or med-arb, is common in Toronto. You mediate first with a professional who is both a trained mediator and a trained arbitrator. If you settle, you sign a separation agreement and the arbitration never happens. If you don’t, the same person switches roles and decides what’s left.

The appeal is efficiency: you don’t start over with a new decision-maker, and the deadline tends to focus people. The drawbacks are real too. You may hold back in mediation because the mediator could become your judge. The arbitrator has heard things in mediation that wouldn’t be evidence at a hearing. And the law requires the med-arb agreement to be signed, with screening and independent legal advice, before the mediation starts, so it needs more setup than mediation alone.

Arbitration vs mediation vs court

	Mediation	Arbitration	Family court
Who decides	The two of you	An arbitrator you choose	A judge assigned to you
Privacy	Private and confidential	Private	Public record
Timing	Set by you, often a few months	Weeks to months	A year or more to trial
Cost	Lowest: one neutral, shared	You pay the arbitrator plus two lawyers	Two lawyers; the judge is free
Outcome	A separation agreement you both built	A binding award	A court order
Appeal	Not needed	Limited, as agreed	Yes, through the courts
Creative solutions	Yes: whatever works for your family	No: the law as the arbitrator applies it	No

That last row matters more than people expect. An arbitrator decides according to the law, which usually means a straight equalization and guideline support. In mediation you can trade: one spouse keeps the pension and the other takes more of the house, support becomes a lump sum with the tax worked out, the home sale waits until the youngest finishes school. That’s what we mean by a Soft Landing, and no decision-maker can order it. Our comparison of a mediator vs a lawyer covers the other side of the choice.

When arbitration is the right choice

Arbitration earns its cost when you need a decision and you can’t get one any other way:

• One of you won’t negotiate in good faith, or keeps reopening settled points
• You’ve tried mediation and one issue is stuck
• You need a fast ruling on something urgent, such as a parenting schedule before school starts
• Privacy matters, for example a business or a public profile, and court is too exposed
• The issue is technical and you want an arbitrator with that expertise

It’s the wrong choice where there’s family violence or a power imbalance that screening can’t manage, where one spouse can’t afford it, or where the real problem is that neither of you has seen the full financial picture yet. In my practice, a surprising number of “we need a judge” files turn out to be disclosure problems: once both people are looking at the same numbers, the dispute shrinks to something they can settle.

What we do, and what we don’t

At Divorce the Smartway we’re mediators. Our job is to help the two of you reach your own agreement, with the financial analysis done at the table, and then send the draft separation agreement to each of your lawyers for independent legal advice. We don’t give legal advice and we don’t impose decisions. If a file needs an arbitrator, we’ll say so on the first call and point you to the right professional. Our guide to how to start mediation in Ontario covers the first step.

Family arbitration in Ontario: common questions

What is divorce arbitration?

A private process where an arbitrator you both choose hears your case and makes a binding decision on parenting, support or property

It’s governed by Ontario’s Family Law Act and the Arbitration Act, 1991. The award is enforceable through the court, but the arbitrator can’t grant the divorce itself.

Is family arbitration legally binding in Ontario?

Yes, if the agreement was in writing, both of you had independent legal advice, you were screened, and the arbitrator followed the regulations

If those conditions aren’t met, the award is unenforceable. An arbitration that applies religious law or any law other than Ontario’s or another Canadian jurisdiction’s has no legal effect.

How much does divorce arbitration cost in Ontario?

No set price. You share the arbitrator’s hourly fee and each pay your own lawyer. A full hearing can cost as much as a trial

Legal Aid generally doesn’t cover arbitration. Mediation is the lower-cost route, because there’s one neutral, no hearing and no second set of briefs.

How long does arbitration take in Ontario?

Typically three to twelve months, depending on the issues and the schedule you set with the arbitrator. Urgent interim rulings can come within days

That’s usually faster than court, where trial dates are often a year or more away.

What is the difference between mediation and arbitration in a divorce?

A mediator helps you decide; an arbitrator decides for you. Mediation ends in an agreement you both built, arbitration in a binding award

Mediation allows solutions a judge or arbitrator couldn’t order, such as trading the pension for the house. Arbitration gives you a decision when you can’t agree.

Can an arbitrator decide child custody in Ontario?

Yes. An arbitrator can decide parenting time and decision-making responsibility, applying the best interests of the child test

Screening for family violence is mandatory first. Parenting coordination, a form of secondary arbitration, is often used for ongoing disputes after an agreement or order.

Do I need a lawyer for family arbitration?

Yes. Each of you must get independent legal advice before signing the arbitration agreement, and most people are represented at the hearing

Without the certificates of independent legal advice, the award can’t be enforced. This is one reason arbitration costs more than mediation.

What is mediation-arbitration?

A two-stage process with one professional: you mediate first, and if you can’t settle, the same person arbitrates what’s left

The agreement, screening and independent legal advice have to be in place before the mediation starts. It’s efficient, but some people hold back in mediation knowing the mediator may become the judge.