TTK isn't part of the free upgrade offer they had with the first two expansions. You're going to have to buy it for XB1 as well. [quote][u]Does Destiny: The Taken King qualify for the Digital Upgrade Program?[/u] No, Destiny: The Taken King is not part of the Digital Upgrade Program. This offer does still include qualifying Expansion Pass, Expansion I and Expansion II purchases. For more information, please see the Digital Upgrade Program Help article.[/quote] https://www.bungie.net/en/Help/Troubleshoot?oid=13347