Get your taxes done using TurboTax

@turb0wu   Yes that could happen.  Are you on Windows?  When you save the second return the first time go to File-Save AS.  And even save the first return with different name.    Don't use the default name given by the program.   The default name should be something like.....2025 Tax J Form 1040 Individual Tax Return.  So you would want to save it as 2025 Tax Jason Form 1040...... and 2025 Tax Jenny Form 1040

You need to go to FILE - SAVE AS and give the return a unique name you can tell apart. At least add the full first name. You don't have to use or accept the name Turbo Tax gives it. I save all my returns with different names.  The file name doesn't have to be the same as the tax return.    The files will end in .tax2025 and should be in your Documents then in a Turbo Tax folder.  

Also before you start the second return I would make a backup of the .tax2025 file like copy it to a thumb drive   incase something goes wrong.  You should always be making backups frequently.  

Here's a screenshot I made several  years ago