Yes the online version is only good for 1 return per account. So yes you have to pay for each return unless you use the Free Edition. Thats why if you need to do more than one return you should use the Desktop CD/Download program.
Online is only good for 1 return per account. But you can use the same email address for 5 accounts. How to start another return in the Online version
https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-start-another-return-in-turbotax-onli...
