Each online tax return will need it's own TurboTax account.
Each online account needs it's
own log in username and password.
If you want to
start another return in TurboTax Online, here’s what to do:
- Sign out of Your TurboTax Online.
-
Select the TurboTax Online product you
want to use for the second return and proceed creating your girlfriend's
account.
- On the Create your
account screen, set up a new login for the second
return.
- You can
reuse your email address if you want to receive e-file notifications for
the second return.
- Up to 5
accounts can be tied to the same email address. BUT it is best to use a
totally different email address if possible so there's no confusion on
log in.
After
you've created the new account, you can start working on the second
return.
From
<https://ttlc.intuit.com/questions/4238132-how-do-i-file-my-girlfriends-taxes-for-her?jump_to=similar...>