Most of my answer was how to switch to the Desktop CD/Download program . It is different than the Online version and has more features and advantages. And you can use a lower version where as in the Online version you have to upgrade to a higher version to enter certain income. All the Desktop programs have the same forms. You just get more help and guidance in the higher versions.
In the Online version if it doesn't let you clear or go to a lower version and you haven't paid and filed you could just start a new account. 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...
