Amending Previous Admissions Within Defence
Requires Opposing Party Consent or Leave of Court In Some Circumstances
Page last modified: May 18 2022
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Is a Defendant Allowed to Amend a Previously Served Defence Pleading So to Withdraw a Previously Admitted Fact?
Understanding That Consent or Leave Is Required to Withdraw a Previously Admitted Fact In Small Claims Court
When a Defendant to a lawsuit serves and files a Defence pleading in response to the allegations as contained within the Plaintiff’s Claim pleading, proper care should be taken to proper admit facts that should be

admitted while also ensuring to avoid inaccurately admitting facts that are truly contentious as subsequently withdrawing the admission may be troublesome.
The Law
12.01 (1) A plaintiff’s or defendant’s claim and a defence to a plaintiff’s or defendant’s claim may be amended by filing with the clerk a copy that is marked “Amended”, in which any additions are underlined and any other changes are identified.
… Time (3) Filing and service of the amended document shall take place at least 30 days before the originally scheduled trial date, unless,
(a) the court, on motion, allows a shorter notice period; or
(b) a clerk’s order permitting the amendment is obtained under subrule 11.2.01 (1).
1.03 (2) If these rules do not cover a matter adequately, the court may give directions and make any order that is just, and the practice shall be decided by analogy to these rules, by reference to the Courts of Justice Act and the Act governing the action and, if the court considers it appropriate, by reference to the Rules of Civil Procedure.
51.05 An admission made in response to a request to admit, a deemed admission under rule 51.03 or an admission in a pleading may be withdrawn on consent or with leave of the court.
7. I am aware of no appellate authority which addresses that question. My colleague Deputy Judge Dickinson held that leave is required, in Kinka Transport Inc. v. Rideway Transport Inc., [2012] O.J. No. 4081 (Sm. Cl. Ct.), at para. 60. With respect, I agree.
8. In Antipas v. Coroneos (1988), 26 C.P.C. (2d) 63 (Ont. H.C.J.), Saunders J. reviewed the authorities dealing with withdrawal of admissions, in light of the new Rules of Civil Procedure, R.R.O. 1990, Reg. 194, and particularly the liberal and purposive interpretive principle set out in rule 1.04(1) of those rules. His Lordship observed that the modern trend had been “towards a more liberal view on the withdrawal of an admission.” The party seeking leave to amend a pleading by withdrawing an admission was required to satisfy the court that (1) the proposed amendment raises a triable issue; (2) the admission was inadvertent or resulted from wrong instructions; and (3) the withdrawal will not result in any prejudice that could not be compensated in costs
9. Antipas v. Coroneos, supra, was specifically approved in Szelazek Investments Ltd. v. Orzech (1996), 44 C.P.C. (4th) 102 (Ont. C.A.). I see no good reason why the requirement for leave should not apply in Small Claims Court.
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