I had this same problem, and after spending 3 sessions on the phone for a total of over 3 hours with 3 different Turbo Tax experts (the last one being extremely helpful and effective - shout out to James), I have an answer. If you need to amend your 2023 tax return, and you used the Turbo Tax online version, you CANNOT amend your return online. It is impossible. I was told that any amendment prior to 2025 must use the desktop Turbo Tax version for the year you are amending. For me, that meant that I needed to purchase the 2023 desktop version of Turbo Tax. This is not something I ever would have found out if not for calling a Turbo Tax expert multiple times. Now, I am left seeing if I can actually figure out how to amend my return (especially without having to input again all of my information. Good luck, out there. You'll need it,
