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Offers to Settle in Ontario Family Court and Costs Consequences

Learn how a Rule 18 offer to settle works in Ontario family court, what makes it count for costs, and how to accept or withdraw it.

Family Law4 min readTSLBy the Treadstone Law Team · OntarioUpdated November 6, 2026
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Key takeaways
  • A written offer to settle can protect you on costs if the court later gives you an order as good as or better than your offer.
  • An offer must be signed personally by you and by your licensed representative, and it can only be accepted by serving an acceptance.
  • Except at a binding judicial dispute resolution hearing, the judge sees offers only after deciding the issues.

Most family cases settle before a judge makes a final decision. A formal offer to settle is one of the main tools for getting there, because it puts a clear proposal on the record and can affect who pays legal costs later.

If you are heading toward a motion, hearing or trial in Ontario, it helps to know how an offer is made, when it counts, and how it can be accepted or withdrawn. The rules changed recently, so details matter.

What an offer to settle is

An offer to settle is a written proposal to resolve some or all of the issues in your case. It is different from casual negotiation by email or in the hallway. A formal offer under Rule 18 of the Family Law Rules follows set requirements, and even a written offer that does not meet rule 24(12) may still be considered when the court sets the amount of costs.

An offer must be signed personally by the party making it and also by their licensed representative. The making, withdrawal, acceptance and rejection of offers carry the costs consequences set out in rule 24. Offer consequences now sit in rule 24(12) and (13) of the Family Law Rules.

When an offer helps you on costs

The general starting point is that a successful party is presumed to be entitled to the costs of a step in a case. A good offer can strengthen that position. Under rule 24(12), a party who made an offer is entitled to costs up to the date the offer was served, and full recovery of costs from that date, if all of the following apply:

The party claiming the benefit of an offer has the burden of proving that the order is as good as or better than the offer. That is one reason to write offers clearly, so the comparison with the final order is easy to make.

Accepting, withdrawing and time limits

The person who made an offer may withdraw it by serving a notice of withdrawal at any time before it is accepted. The only valid way to accept an offer is to serve an acceptance on the party who made it. Telling the other side informally that you agree is not enough.

There is also a cut-off. An offer may not be accepted after the court begins to give a decision. If you are thinking about an offer you received, do not wait until the last moment, because it may be withdrawn or may expire first.

What the judge sees and what else affects costs

Except at a binding judicial dispute resolution hearing, the judge sees the parties' offers only after deciding the issues. How this applies to your own hearing depends on your situation, so it is worth confirming with a lawyer.

An offer is not the only factor in a costs decision. When setting the amount, the court may consider the reasonableness and proportionality of each party's behaviour, the time spent, written offers (including offers that do not meet rule 24(12)), legal fees and rates, and other properly paid expenses, all relative to the importance and complexity of the issues. Claims for fees and expenses must be backed by satisfactory documentation. Before each step, the parties must also confer about costs or make their best efforts to do so, unless a court order prohibits it or there is a risk of domestic violence.

What to do next

Frequently asked questions

Can I make an offer to settle without a lawyer?

The rules require an offer to be signed personally by the party and by their licensed representative. If you are not represented, a lawyer can confirm how the signing requirement applies to you.

Can I take back my offer?

Yes, the party who made an offer may withdraw it by serving a notice of withdrawal at any time before it is accepted. Once it has been accepted by service of an acceptance, it can no longer be withdrawn.

Does the judge know about my offer during the trial?

Except at a binding judicial dispute resolution hearing, the judge sees offers only after deciding the issues. They are then considered when costs are decided.

Does a good offer guarantee I get my costs?

No. Full recovery from the offer date applies only if every condition in rule 24(12) is met, including that you obtained an order as good as or better than the offer. The court can also look at the behaviour of the parties and other factors.

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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