Looks like it. You can only transfer a 1040 pdf into the personal versions and only from other software. You need the .tax2020 file to transfer into Business.
https://ttlc.intuit.com/community/using-turbotax/help/can-i-transfer-last-year-s-pdf-into-the-turbot...
Where did you do the business return last year? Did you use Turbo Tax?
And you shouldn't even use the pdf. It only transfers basic info like your name and ssn and AGI.
