When I drilled down to the QBI deduction summary page, it appears the deduction is linked to REIT dividends. However, I provided no information that I'm aware of that would have prompted this. There is also no schedule C. The only possible place is dividend information, but how would TT know there is (or isn't) an REIT involved? How can I find the source of this deduction when I answered no questions about QBI or REIT myself?
