Two brothers playing under 0ne account fifa .but one brother want to make a new account for...

Hello that would be a brand new account none of the info would be transferred over.

You can try to get on the computer and make a accout

If I understand your question correctly, you do NOT want your brother to be able to play online through your gold membership?

In that case, in addition to steeledwand7664's answer, be aware that the first Xbox One console you sign in on, will become your "Home Console".

The Home Console will then share all your games INCLUDING your Gold membership to anyone playing on that console, including your brother.

If you don't want your brother to play online, BUT be ABLE to play your games, your only way of doing that would be to add your brother to an adult family account at
https://account.microsoft.com/family and then disallow him to play online in the online and privacy settings on
https://account.xbox.com/settings

If you want to completely disallow your brother from playing your games and Gold benefits, you need to go to the console your brother plays on, sign into your account, and under Settings-->Personalization remove the Home Console setting for that console
on your account.

Or simply find a different console that you will set as your Home Console, as your account can only have one Home Console at any time.

And if you want to prevent your brother from signing into your account and again benefit from your games and Gold, make sure to protect your account with a passkey as steeledwand7664 described.

Go the your and your brothers account on the internet. Check on which account the game appears under the purchase history. But if your brother can play the game on his account that sounds like the purchase was made on his account...

My gamer tag is the only one on the console, and it is set to my home Xbox under the only gamertag on the system. On the One S however, I had to log in with my brother's account and make it his home Xbox so that I can use live on my new Xbox one S and game
share with my brother. I tried playing on my gamer tag on my brother's Xbox one, that is set as my home Xbox, and it says I need to buy gold. But somehow on my original Xbox one, I can play online.