There are several entries that are not made on the new 1040 that used to be entered on a 1040EZ or 1040A. Those entries required one of the new Schedules 1-6. If the entry requires Schedule 1, then you must upgrade to Deluxe to enter it.
Here is what the Free Edition can and can't do: https://ttlc.intuit.com/questions/1913043-is-turbotax-free-edition-right-for-me
You qualify if you had $34,000 or less AGI or $66,000 or less military family AGI or qualify for EITC. Click on See if you qualify then Yes (if you do) then Start Now button, then choose Create an Account.
