Can I start a new 2025 return for someone else using my email address

[VolvoGirl]

Sorry each account needs a separate email address.  Online is only good for 1 return per account.

You can start another return in TurboTax Online by:
Logging out if you are in your account
Choose what TurboTax Online product you want to use for the second return
https://turbotax.intuit.com/personal-taxes/compare/online

Create your account screen
Set up a new login for the second return
Start working on the new return