A claim asserted in an amended pleading is deemed to have been interposed at the time the claims in the original pleading were interposed, unless the original pleading does not give notice of the transactions or occurrences to be proved in the amended pleading, pursuant to CPLR 203[f]. The relation-back doctrine permits a plaintiff to interpose a claim or cause of action which would otherwise be time-barred, where the allegations of the original complaint gave notice of the transactions or occurrences to be proved and the cause of action would have been timely interposed if asserted in the original complaint. When determining whether a defendant has been placed on notice of the transactions or occurrences underlying a new claim for purposes of CPLR 203(f) and the relation-back doctrine, the court should look only at the four corners of the original pleading.
Benjamin v. Nail Peak, Inc., NY Slip Op 04394 (2d Dep't July 15, 2026)
