That person's Estate would have to file an Estate Income Tax return (Form 1041, not 1040) for 2020. That requires the TT Business desktop version (Windows version only):
TurboTax® Business CD/Download 2020-2021 Desktop Software, File Business Taxes (intuit.com)
Also see:
Deceased Taxpayers – Filing the Estate Income Tax Return, Form 1041 | Internal Revenue Service (irs....
