If she got a W2 she only has to file to get back any withholding taken out. If she got a 1099Misc she does have to file. She will have to check the box on her return that says she can be claimed on someone else's return.
The Online version is only good for 1 return. But you can use the same email address for 5 accounts. To do another return you have to set up a new account and new user name and pay any fees again. So if you have more than 1 return to do it might be better to buy the Desktop program.
How to start another return in the Online version
https://ttlc.intuit.com/questions/1894512-how-do-i-start-a-second-return-in-turbotax-online https://ttlc.intuit.com/replies/3288574
