Along with the release of SWTOR Game Update 2.2 next week (on June 11th), we will also get paid character transfers. The service is going to go live with the game update and it’s going to cost 1800 Cartel Coins.
So the first thing you’re going to need to do is pay 1800 Cartel Coins (the equivalent of around $15 US). This will initiate the transfer and allow you to put in the details of where you want to go. Your legacies, achievements, and unlocked collectibles will go to the new server with you.
Here are details from Eric Musco:
What happens if there is a name collision?
If your character name is already taken by another player on your new server, you will need to rename your character. Your character will be “flagged” for a rename once you login.
Will my Legacy, Achievements, and Collections all transfer with my character?
Yes! All of your Legacy unlocks, Achievements earned, and triggered Collections will be waiting for you.
What happens if I have a Legacy on both my source and destination servers?
Whichever Legacy is of a higher level will take precedence and become your new Legacy. This has no affect on unlocks, the unlocks from both Legacies will combine. For example: You are transferring a character from the Bastion to the Harbinger. The character you are transferring from the Bastion is in a level 27 Legacy. Currently on Harbinger you have a level 13 Legacy. After the transfer you will now have a level 27 Legacy on Harbinger which combines the unlocks from both servers.
Is there a way to transfer a guild?
There is currently no method in place to transfer an entire guild at one time. Each person must transfer their characters individually and recreate their guild on the new server.