An identification system uses a local cache for performing identifications. An identity system device may store identity information and identification information. An electronic device stores a cache of a portion of the identity information and a part of the identification information. The electronic device receives user input, determines an identity by comparing the user input to the cached identification information (such as by comparing a received digital representation of a biometric with cached biometric identification information), and performs an action using information in the cached identity information that is associated with the identity. The electronic device may update the identity information stored by the identity system device based on the action.