You cannot change the tax year. The current online program is for 2025 only. Only a 2025 return can be prepared online and only a 2025 return can be e-filed.
Online preparation and e-filing for 2022, 2023, and 2024 is permanently closed.
Note: The desktop software you need to prepare the prior year return must be installed/downloaded to a full PC or Mac. It cannot be used on a mobile device.
To file a return for a prior tax year
If you need to prepare a return for 2022, 2023, or 2024 you can purchase and download desktop software to do it, then print, sign, and mail the return(s)
https://turbotax.intuit.com/personal-taxes/past-years-products/
You may also want to explore purchasing the software from various retailers such as Amazon, Costco, Best Buy, Walmart, Sam’s, etc.
Remember to prepare your state return as well—if you live in a state that has a state income tax.
When you mail a tax return, you need to attach any documents showing tax withheld, such as your W-2’s or any 1099’s. Use a mailing service that will track it, such as certified mail so you will know the IRS/state received the return.
Federal and state returns must be in separate envelopes and they are mailed to different addresses. Read the mailing instructions that print with your tax return carefully so you mail them to the right addresses.
You can still file your 2024 returns now - you just won't be able to e-file them with TurboTax, as @xmasbaby0 noted.
You can still use TurboTax to prepare your 2024 returns, then print and mail them.