Please follow these steps:
1. Make sure you
have signed out of your TurboTax account
2. Go to https://turbotax.intuit.com/personal-taxes/compare/online/ to
select the TurboTax product that will meet the needs of the filer
3. Create
their account, set up a new login for the additional return (you can use your
email address for up to 5 accounts if you want to receive e-file
notifications)