Hi sm506,
Very sorry about your loss. It is difficult having a death in the family.
Please refer to the below article addressing your question.
https://ttlc.intuit.com/community/taxes/discussion/how-do-i-file-a-return-for-a-deceased-turbotax-us...
As indicated, in the Personal Info section, you need to check the box "Passed away before filing this return", and input Date Passed Away.
Hope the above helps.
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