Yes. You can go to the very end and submit your returns. But if you need to enter something that Free Edition doesn't cover you will have to upgrade to a paid version.
In the Turbo Tax Free Edition, information that you can enter is limited now. Why do I have to upgrade from the Free Edition?
https://ttlc.intuit.com/community/upgrading/help/why-do-i-have-to-upgrade-from-free-edition/00/26379
Or go to the IRS Free File programs
Free File: Do your Federal Taxes for Free | Internal Revenue Service
