Since the VPN hacks are very "temperamental" now this is the safest way I have found to get Xbox Game Pass Ultimate for a few years at a discount using all Aus Money and AU vendor's websites.
This hack has been around for a while and sure it's been listed before but I used it the other day and got my Xbox subscription to Jan 2026 So can confirm it still works.
When converting to Ultimate an Xbox Game Pass Core 12 Month sub you will get 3:2 convert so 2 months for 3 months or 3 years of Core will get you 2 years of Ultimate.
You need to be either a NEW or EXPIRED Xbox account (not active)
Check you have the option to activate Ultimate being advertised at either https://account.microsoft.com or (https://www.xbox.com/en-AU/xbox-game-pass?xr=shellnav)
(don't use it yet)
Purchase 3 years XBOX Game Pass Core 12 Month - Xbox [Digital Code] from Amazon or JB for $79.95
Activate all Core Pass on your account via https://account.microsoft.com/billing/redeem so you have 3 years of Game Pass Core Active
Now use the link to update your account from Core to Ultimate pay for New accounts $1 or $18.95 for expired and converting to Ultimate will do 2 month for 3 months so you will get 2 years of Ultimate.
3 Years of Game Pass Core 12 Month sub $79.95 * 3 = $239.8($6.66 Per month Core)
converting to Ultimate $1 or $18.95 for 1 month
You will get 24 months (Excluding convert to Ultimate costs) ($9.99 Per month) for Ultimate
Retail $18.95 for Ultimate * 24 months = $454.80
The above hack does not work for Active Subs the conventions are not as good and closer to the real costs
Other info
https://answers.microsoft.com/en-us/xbox/forum/all/what-is-t…
Use Cashrewards or Gift cards to make it cheaper if you want.
Amazon
https://www.amazon.com.au/XBOX-Game-Pass-Core-Month/dp/B0CM7…
I just used a 'VPN hack' just the other day. 2 years and 1 month for ~$150. I was expired and got it until Jan 26.