Right, @JamesG1 , thanks a lot for a very detailed response! If I switch to the Forms view and look at the QBI deduction smart worksheet, I indeed see that one half of the self-employment tax is what goes on line 5b (
Total deduction for 1/2 self employment tax). However there is another step after that which reduces 5b by ~$40 and this goes on line 5c (Deduction for 1/2 SE tax connected to this business). I've verified that what's actually deducted from net business income in QBI calculation is the amount on 5c. I only have one amount listed in Schedule C, which is my tutoring income, so I'm mot sure what else could be contributing to the QBI computation.
