The 2023 tax return can only be amended using the TurboTax desktop editions for tax year 2023.
See this TurboTax support FAQ for amending a prior year tax return - https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/amend-change-correct-return-already-filed/L4VjJ9BA2_US_en_US?uid=ld1n99kr
For tax year 2024 you can use either the TurboTax online editions - https://turbotax.intuit.com/personal-taxes/online/
Or the TurboTax desktop editions for tax year 2024 - https://turbotax.intuit.com/personal-taxes/cd-download/
If you used TurboTax to prepare your 2023 return there is no fee to amend using TurboTax unless the change you are making requires an upgrade to a higher software version.
If you did not use TurboTax to prepare your 2023 return:
CAN I USE TURBOTAX TO AMEND IF THE RETURN WAS PREPARED SOMEWHERE ELSE?
If you did not use TurboTax to prepare your tax return, it is possible to amend the return using TurboTax but it will really be a pain. It would be better to use the software or service used to file originally. If a paid preparer made a mistake on your tax return, that tax preparer should do the amended return for you at no charge.
In order to use TurboTax to amend your return, you need to purchase the desktop software for the tax year and re-create the return EXACTLY as it appeared when it was filed with the IRS/states. Every line has to be the same. Then you have to "trick" the software into thinking you filed by saying you will mail the return. (but do not mail it) AFTER that, you use the software to prepare a Form 1040X, which has to be printed, signed and mailed to the IRS. It takes the IRS about 4-6 months to process an amended return
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.
As for 2024 pricing:
https://turbotax.intuit.com/personal-taxes/cd-download/
You can also purchase the desktop download from various retailers such as Costco, Amazon, Walmart, Best Buy, Staples, Sam’s Club, etc. etc. etc.
This link Where can I obtain authentic TurboTax software? has a list of authorized TurboTax resellers.
ONLINE 2024
https://turbotax.intuit.com/personal-taxes/online/
And just so you know—online prices go up in March—Pay your fee before then to lock in the discount