First, login to your billing account through the Client Area.
Next, go to Domains > My Domains, and select the ACTIVE box beside the domain name to be transferred.
Now you need to select “Registrar Lock” on the left hand side under Actions:
On this page, select “Disable Registrar Lock” to allow your domain name to transfer.
Once registrar lock has been disabled, go to “Get EPP Code”:
This page will give you the authorization code that you must give to your new provider in order to complete the transfer process.