Systems and methods for performing offline charging for group communications. One embodiment is an application server that identifies data for a group communication, identifies an encryption code assigned to the group, encrypts the data for the group communication using the encryption code, and initiates delivery of the encrypted data for the group communication to the group of mobile devices over an MBMS bearer. The application server collects charging information related to the group communication using MBMS delivery, formats the charging information into an offline charging communication, and transmits the offline charging communication to an offline charging system.