This process is undertaken by customers installing ProFile, starting a new tax year, or update an existing EFILE number and password. Note that if any steps are skipped that it will not be possible to EFILE.
ProFile users must apply online to the CRA for an EFILE number and password; information on the application process can be found here.
Following a successful application, the CRA provides a user number and password.
ProFile users can contact the CRA help desk for user number and password assistance at EFILE Helpdesk Support for T1 Returns.