Now that I have filed my federal and state income taxes, am I able to use Turbo Tax to file my 18 year old daughter's taxes as well?

[bfellmy]

That is, without buying a new Turbo Tax?  I have always been able to use the single purchase of
Turbo Tax in the past to file another family member's tax returns.

[ErinH · Accepted solution]

You most likely used the desktop/download version previously. You can only file one return per account with Turbotax Online, so you will need to create a second account.

Tip: If you're preparing multiple returns for family members, it's more economical to switch to the TurboTax CD/Download software, which lets you e-file up to 5 federal returns at no additional cost. Here is the link to the Desktop products: https://turbotax.intuit.com/personal-taxes/cd-download/

See this FAQ to create another account: https://ttlc.intuit.com/replies/3288574

[NiaW]

Unfortunately, no. This is because when using the online versions, you will have to start a new account with a new unique user ID for another tax return. The online editions are only good for completing one tax return per account and user ID. See the FAQ below to find out how you can create a new account:

https://ttlc.intuit.com/replies/3288574