You can use Turbo Tax Free Edition for simple returns. You
may have entered information that the Free Edition doesn’t cover, which
available in the Deluxe version. You can
downgrade to the Free Edition by clicking Clear
and Start Over, which is located at the top of the home page under My Account. Keep in mind that if you enter
sufficient itemized deductions to exceed your standard deduction, you'll be
asked to upgrade to Deluxe again.
Click on the link below for more information.
https://ttlc.intuit.com/replies/3288495