Last Updated: August 22 2026
In Ontario, is it proper to ask a judge to reconsider a court decision if we think an obvious error was made?
Olson Craig Legal can help you assess whether a request to re-open is proper in Ontario, but court decisions are usually final except for appeals or a very rare self-correction where all parties consent and it is “unusual and rare” that the interests of justice compel reconsideration, such as clear, obvious error (see Gupta v. Lindal Cedar Homes, 2020 ONSC 7524). In practice, courts are more likely to reconsider only where the alleged error is clear and not still contested, so it helps to get a lawyer & paralegal review the reasons, the record, and the consent needed before you file. If you want to discuss your situation with Olson Craig Legal, call (226) 886-2001.
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Can a Judge Reconsider a Decision Where It Appears That a Mistake Was Made?
After a Judge Issues a Decision It Is, Generally, Accepted In Law That the Decision Is Final and Should Only Be Reconsidered By the Judge If All Parties Agree Due to Concerns Regarding An Obvious Error.
Note: Please contact Olson Craig Legal by phone at: (226) 886-2001 to discuss any specific questions that you may have.
Understanding When It May Be Appropriate to Ask a Judge to Reconsider a Court Decision
The process of law, including the making of a court decision, seeks to bring finality to issues in dispute. Accordingly, once a case is decided the law expects that all involved will respect the decision, including any mistakes within the decision, unless taken by Appeal to a higher court. It is rare that a Judge will perform a reconsideration.
The Law
Although a court, generally, is empowered inherently to control its process, and is therefore empowered to review a rendered decision, whether a court should actually review a decision is highly questionable and is likely to occur only when all parties agree that a decision contained obvious errors and is in need of reconsideration. This view was well explained in Gupta v. Lindal Cedar Homes Ltd., 2020 ONSC 7524 where it was specifically stated:
[6] The court has an inherent jurisdiction to adjust a litigation result after judgment in some circumstances, other than through proper appellate review or as contemplated by r. 59.06. However, this should occur only in “unusual and rare circumstances where the interests of justice compel such a result”: Susin v. Chapman, [2004] O.J. No. 2935 (C.A.), at para. 10. Finality in litigation is to be encouraged and fostered. The discretion to re-open a matter should be resorted to “sparingly and with the greatest care”: 671122 Ontario Ltd. v. Sagaz Industries Canada Inc., 2001 SCC 59 (CanLII), [2001] 2 S.C.R. 983, at para. 61.
[7] In Schmuck v. Reynolds-Schmuck (2000), 2000 CanLII 22323 (ON SC), 46 O.R. (3d) 702 (S.C.J.) at para. 25, Himel, J. emphasized the limited circumstances in which a reconsideration should occur, stating: “It is my view that a party who wishes a reconsideration would have to establish that the integrity of the litigation process is at risk unless it occurs, or that there is some principle of justice at stake that overrides the value of finality in litigation, or that some miscarriage of justice would occur if such a reconsideration did not take place.”
[8] In Gore Mutual Insurance Co. v. 1443249 Ontario Ltd., (2004) 2004 CanLII 27736 (ON SC), 70 O.R. (3d) 404 (“Gore”), at paras. 7-8, Karakatsanis, J. (as she then was) was prepared to re-open her decision in a situation where it was “obvious an error was made by all counsel and by the court.” It was a “case of a clear error.” It was “obvious” that the statutory provision now raised would have changed her determination and all counsel conceded that the provision previously relied upon had no application to the case. Karakatsanis, J. concluded at para. 8 that the “interests of justice are not served by requiring an appeal on a clear error of law that followed inaccurate and incomplete legal submissions of counsel.”
[9] In Scott, Pichelli & Easter Ltd. et al. v. Dupont Developments Ltd. et al., 2019 ONSC 6789, Sossin, J. (as he then was) noted at para. 13 that a “motion for reconsideration is more likely to be successful where the parties agree that an error has occurred, and less likely to be successful where the subject matter of the alleged error remains contested by the parties.”
Per the Gupta case as above, a reconsideration should occur only where all parties agree that a judicial decision contains a mistake; and unless so, it should be expected that a judge will deny a reconsideration request.
Summary Comment
When a court renders a judicial decision the issues in dispute are, generally, deemed final unless reversed or corrected via the appeal process; however, where the parties involved agree that the decision contains an obvious error and that a request to reconsider is a just way to remedy the error, although very rare, it is possible that a court will reconsider.
NOTE: A considerable amount of online searches featuring “lawyers near me” or “best lawyer in” usually indicate a desire for prompt and effective legal support rather than a particular designation. In Ontario, the same Law Society that governs lawyers also regulates licensed paralegals, allowing them to advocate for clients in specific litigation scenarios. Skills in advocacy, legal assessment, and procedural knowledge are foundational to this position. Olson Craig Legal provides legal representation within its authorized framework, focusing on strategic planning, evidence preparation, and compelling advocacy to achieve swift and positive outcomes for clients.
