I've been using Mark to Marketing for several years now. I put my investment gain in form 4797. I then transfer just enough income to my schedule C to match my home office expenses and other expenses exactly. This allows me to get my full home office deduction while showing zero income for Schedule C, thus generating zero SE tx. The problem is, that it appears my leftover profit in form 4797 doesn't transfer over to the QBI worksheets in TurboTax, so no QBI deduction. If I transfer the whole amount to Schedule C, I get the QBI deduction but I also get the SE tax. Anyone know the mechanics of getting the QBI deduction (which I think I'm entitled to) without triggering the SE tax (which I don't think I'm required to pay.)?