Offers to Settle in Ontario Family Law: How They Affect Costs

Every family law case can theoretically settle at any point before a judge rules, and Ontario's court rules build in a real financial incentive to make that happen. An offer to settle made formally during a family law case isn't just a negotiating tactic — if the case doesn't settle and proceeds to a decision, that offer can directly affect who pays legal costs at the end, and how much.

Understanding how offers to settle work, and how seriously courts take them, matters whether you're the one making an offer or deciding whether to accept one from the other side.

Why Formal Offers to Settle Exist

The court system has a practical interest in encouraging parties to resolve disputes without a full trial. A formal offer to settle, made under the Family Law Rules, is one of the tools used to create that incentive: it rewards a party who made a reasonable offer, and can work against a party who unreasonably rejected one, once the final result is known.

What Makes an Offer "Formal"

Not every conversation about settling counts. To carry costs consequences, an offer generally needs to:

• [ ] Be made in writing, clearly and unconditionally, so it's obvious exactly what's being offered
• [ ] Be delivered through the proper process under the Family Law Rules, not just mentioned informally in conversation
• [ ] Remain genuinely open for the other side to accept, rather than being withdrawn before they've had a fair chance to consider it
• [ ] Be specific enough that a judge, looking back later, can clearly compare it to the eventual result

A vague verbal suggestion that "we'd probably settle for something like that" doesn't carry the same weight as a properly drafted, formal offer.

How an Offer Can Affect the Final Costs Decision

Once a case is decided, whether by trial or otherwise, the judge deciding costs will typically look at any formal offers made along the way and compare them to the outcome. Broadly:

• If a party made a reasonable offer that the other side rejected, and the eventual result is no better for the rejecting party than the offer would have given them, that can support a larger costs award in favour of the party who made the offer.
• If a party's own final result turns out worse than an offer they themselves rejected, that can work against them when costs are decided.

The exact weight a judge gives to any specific offer depends heavily on the full context of the case — it's one important factor among several, not a rigid formula that produces the same result every time.

A Simple Illustration

Imagine one parent offers, partway through a case, to resolve a parenting dispute on terms reasonably close to what a judge ultimately orders after a full trial. The other parent rejected that offer and pushed the matter to trial. When costs are decided, the judge may take into account that a reasonable resolution was available earlier and wasn't accepted, potentially increasing the costs the rejecting party has to pay, on top of having gone through an unnecessary trial. The exact numbers involved will always depend on your case; this is meant to illustrate the principle, not predict an outcome.

Strategic Considerations Before You Make — or Reject — an Offer

• An offer that's too aggressive, asking for far more than you're likely to get, is unlikely to help you at the costs stage, even if it's technically "formal"
• An offer that's genuinely reasonable, properly documented, and left open for real consideration puts you in a stronger position later regardless of whether it's accepted
• Rejecting an offer outright, without a documented reason, can look unreasonable in hindsight if the final result doesn't improve meaningfully on what was offered
• Timing matters — an offer made very late in a case may carry less weight than one made with enough time for genuine consideration

Frequently asked questions