So sorry for your loss. For the year that your spouse passed away (2023) you could file a joint tax return.
If you have qualifying dependent children you will be able to file as a qualifying surviving spouse (QSS) for the next two years after the 2023 tax return.
But for 2024, unless you have a qualified dependent to claim, your filing status changes to Single. It is best to start a new account with a new user ID. It is too difficult to delete the embedded information from a spouse if you use the same account that was used for past joint returns.
https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-start-another-return-in-turbotax-onli...
**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.**