I have turbo tax deluxe, I need to file 2024 taxes for single deceased child who died in 2024. Can I file with my Turbo Deluxe, if so how?

Do you have the Deluxe Online version or the Desktop download installed program?  

Online is only good for 1 return per account.  But you can use the same email address for 5 accounts.  You can start another return in TurboTax Online by:

1. Logging out if you are in your account
2. Choose what TurboTax Online product you want to use for the second return
3. Create your account screen
4. Set up a new login for the second return
5. Start working on the new return

The Desktop program can do multiple returns.  Go up to File-New return.

I have the online installed version.

Which is it?  You don’t install the Online version.  Do you mean the Desktop program you installed by downloading it with the 16 digit License Code?   The Desktop program has the menus and tabs going across the top.  The Online version has the tabs going down the left side in a black bar.