So sorry for your loss. For 2025, since you are now filing as Single, you need to start a new account with a new user ID. Using the old account that was used for your previous joint returns will cause all kinds of errors for you, because of all the embedded information from your late spouse.
Keep a record of how to access the old account in case you ever need to look at information from past years---the returns will be saved for seven years.
https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-start-another-return-in-turbotax-onli...
https://turbotax.intuit.com/personal-taxes/online/file-your-own-taxes/
**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.**
