Line 14 adds lines 12c ( AGI less charitable contributions) to 13 (QBI) as opposed to correctly subtracting 13 from 12c. to obtain the correct value for line 14. Line 13 specifically says QBI "deduction", any rational person would subtract line 13 from 12C to obtain the benefit of QBI instead of adding it and not only losing the QBI deduction but paying tax on it. But TT is not rational. Whomever is writing their software needs to be fired. I love the TT advertisement, "taxes done correctly, guaranteed". I am uncertain if that answers your question of "how do I see line 12c"?
