how do i changemy Xboxtag on roblox

You can’t change your Xbox gamertag inside Roblox itself; you have to change the Xbox gamertag through your Xbox profile or Microsoft account settings. Roblox on Xbox lets you play as your gamertag or sign in with a Roblox account, and Xbox/Microsoft provide the gamertag change flow separately.

How to change it

1. Open Xbox settings or your Xbox profile.
2. Go to My profile or Customize profile.
3. Select your current gamertag.
4. Type the new one and check availability.
5. Confirm the change.

If Roblox is linked to the wrong Xbox account

If the Roblox account is tied to the wrong Xbox profile, you may need to unlink the Roblox and Xbox accounts first, then sign in with the correct Roblox account or Xbox profile. Roblox’s support page says you can disconnect from the Security tab on Roblox or unlink from the Xbox app’s account settings.

Important note

Changing your Xbox gamertag changes your name across Xbox services, not just Roblox, and Xbox notes that the first change may be free depending on your account history.

TL;DR

You don’t change the Xbox tag in Roblox; you change it in Xbox/Microsoft account settings, then Roblox will reflect that Xbox name when you play on Xbox.