A Rule 49 offer to settle is a formal written settlement offer made under Ontario’s Rules of Civil Procedure. It is designed to encourage settlement by attaching cost consequences to an unreasonable refusal: if a party turns down an offer and then does no better at trial, that party can be ordered to pay a larger share of the other side’s legal costs under Rule 49.10.

When a valid offer is not accepted and the result at trial is no better for the rejecting party, Rule 49.10 shifts costs. If a plaintiff beats their own offer, they recover partial indemnity costs up to the date of the offer and substantial indemnity costs after it. If a defendant’s offer is not beaten, the plaintiff’s costs are limited to the offer date and the defendant recovers partial indemnity costs from that date. All of this applies unless the court orders otherwise.

Both are scales for how much of your actual legal fees the other side must reimburse. Partial indemnity is the ordinary scale and typically recovers roughly 55 to 60 percent of your costs. Substantial indemnity is the higher scale, usually around 80 percent. Moving from partial to substantial indemnity is the main financial reward for making a reasonable Rule 49 offer that the other side rejects.

To trigger the automatic cost consequences in Rule 49.10, the offer must be made at least seven days before the hearing begins. An offer served less than seven days before the hearing does not attract the automatic consequences, although under Rule 49.13 the court can still take a late offer into account when exercising its discretion over costs.

Rule 49.10 only applies if the offer is still open (not withdrawn and not expired) when the hearing begins. If the offer was taken off the table or lapsed before that point, it cannot trigger the automatic cost consequences, even if it was otherwise valid. The court may still consider a withdrawn offer under Rule 49.13 when deciding costs, but the automatic shift to substantial indemnity will not apply.

The comparison asks whether the judgment is at least as good as the offer for the party being tested. For a money claim this is usually a straight dollar comparison: matching the offer counts as “as favourable as,” beating the number is “more favourable,” and falling short is “less favourable.” A tie is treated in favour of the party who made the offer. For non-monetary relief, the judge decides whether the result is equivalent or better.

Yes. Every branch of Rule 49.10 applies “unless the court orders otherwise,” so the consequences are a strong default rather than an absolute rule. Under Rule 49.13 and the general costs power in Rule 57.01, the court can adjust costs based on factors such as the reasonableness of the offer, the conduct of the parties, and proportionality. The simulator shows the default position, not a guaranteed result.

No. Rule 49 is part of the Rules of Civil Procedure, which govern the Superior Court of Justice. The Small Claims Court has its own offer to settle rules with different cost consequences, so this simulator should not be relied on for Small Claims matters. The tool also assumes a single defendant; proceedings with multiple defendants are subject to additional considerations under Rule 49.11.