TurboTax gets no information whatsoever from the IRS after you file your return, so, no, nothing will change in your TT account or on the tax file that is stored on your hard drive as a result of a change made by the IRS.
You say they corrected your 2022 return. That means you filed a 2022 return and it has been processed. You have no need to get an extension for 2022--which would not be possible anyway since you had to get an extension for 2022 by April 15, 2023. Why do you think you need an extension?
Do you disagree with the change the IRS made? The letter they sent to you should explain what do do if you disagree with the change.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
