The program does enter 0 (zero) on line 9 of 1040.
I think the 1040 line 9 entry should be 20% of the net income seen on all of the three forms mentioned in my question. Agree?
No, your QBID will be less than your Schedule C net income because of SE adjustments. You can use Forms Mode to view your Schedule C and QBI Worksheet. And you have to complete your schedule C before you will be asked the question about the QBI. Until you come to that question, nothing will be transferred to your 1040. So, be sure to go through the entire interview. See screen image below.
Here is the basic calculation:
Income Levels under $157,500 ($315,000 if filing jointly): The calculation is straightforward — 20% is applied to QBI or taxable income minus capital gains and dividends (whichever is less) to come up with the deduction.
For income levels over the above, see details of the calculation in the FAQ below. https://ttlc.intuit.com/replies/7019998