A system for verifying the identity of a user includes an identification score assignment module configured to receive at least one source of identification of the user and to assign an identification score to each of the at least one source of identification. The system includes a total identification score generation module, in communication with the identification score assignment module, configured to generate a total identification score of the user from the identification scores of each of the at least one source of identification and a predetermined function. The total identification score of the user is associated with a level of verification of the identity of the user, and compared to a minimum identification score associated with a transaction. The transaction is performed when the total identification score of the user is greater than or equal to the minimum identification score.