You can add them at any time and Microsoft allows you to stack them. I believe you can redeem up to 3 years worth of Xbox Live Gold membership credits on your account at any one time.
Can you buy multiple Xbox Live Gold?
Here’s how Xbox Live Gold subscribers can extend their Gold subscription benefits to friends and family. On the go: Sign in on any other Xbox, such as at a friend’s place, and share your Gold subscription with everyone as long as you’re signed in.
Do you get free Xbox Live Gold when you make a new account?
All new Xbox accounts are given a free Xbox Live Gold trial when they first log in to an Xbox Series X or Xbox One console.
How long can you stack Xbox Live?
3 years
Yes you can stack up to 3 years onto an account. If you are talking about trial codes, no they won’t stack. Trial codes will only work if your live has expired and trial codes will not stack on trial codes.
Can you have more than one Xbox Live Gold account?
Now if you have 3 different accounts on one single console you can definitely only purchase 1 Xbox Live Gold subscription. Basically you will own the subscription on just that one account but you are able to Share it to the different profiles.
How long can you stack Xbox Live Gold codes?
You can stack up to 36 months of Gold or Gamepass as long as they’re not trials. You can’t stack trials. And yes depending on the code they can expire after a length of time Was this reply helpful?
How can I use my Xbox Gold subscription?
At home: Make your primary Xbox (if you have more than one) your home Xbox, which gives anyone who signs in to the console with their profile the ability to use your Gold subscription. On the go: Sign in on any other Xbox, such as at a friend’s place, and share your Gold subscription with everyone as long as you’re signed in.
When does Xbox Live Gold membership expire?
I currently have an Xbox Live Gold membership that will expire in March 2011. However the price of membership is increasing to $59.99 starting November 1, 2010.