I used Turbo Tax Premier to file my 2019 taxes for my wife and I. Can I now do my son’s taxes?

[RobertG]

You will need to create a new account to do your son's taxes.

You can only do one return per account with TurboTax online.

[patityaale]

How can I create a new account?

[ZoltanB45]

All you need to do it log out of your current turbo tax account and select create new account. From there you can use the same email address as old account. Just change the Username.