A method and system for provisioning payment credentials usable by a mobile device in conducting a payment. The method is conducted at a provisioning system and comprises the steps of: receiving payment credentials from a receiving device, the payment credentials having been obtained from a portable payment device presented by a consumer at the receiving device; receiving, from the receiving device, an identifier entered by the consumer; identifying a mobile device or a secure element corresponding to the identifier; and communicating the payment credentials or a derivation of the payment credentials to the identified mobile device or the secure element to be securely stored in association with the mobile device. The method may include: encrypting the received payment credentials, the encrypted payment credentials having a unique decryption key; and wherein communicating a derivation of the payment credentials communicates the unique decryption key.