The taxbak files are backup files that auto generate everytime you hit save button. Turbo tax have a bug for 2-3 years now that would loose you file once saved. This happened to me again just now so I thought I shared my experience so you don't panic when this does happen to you.
These are the step I take everytime I use TurboTax:
#1 ALL WAY SAVE PDF COPIES just in case before and after filing your return.
#2 I always save 2 copies and have my File Explore tab open to confirm saved files ( Turbotax should have a backup file that auto generated but that sometimes goes missing too)
#3 When file is missing, don't panic. Look for the newest .taxbak file and rename it .tax2024 then goto file tax returns and click on it and you should recover the missing tax return. You should then repeat step #2 to save copies.
Hope this save someone from having a panic attack...
