For the transfer of a domain a so-called authcode/transfercode is required. You can get this code from your current domain provider. If there is still a transfer lock on the domain, you can also remove it there.
As soon as you have received the domain's authcode, you can initiate the transfer here. On this page you can also find a Checklist for the Transfer of Your Domain
Please note that transferring a domain does not transfer any data, content, e-mails or e-mail addresses. You will have to back up your data and upload it back to our server if you still want to use your current data/website. An instruction to uploading your files to easyname can be found here.