In Turbo Tax Deluxe 2018, Intuit says "trust me" to compute the Qualified Business Income deduction, so in case of questions, there is no way to tell how TTD computed the figure. Taxable income before QBI deduction was less than $157k. Taxable income minus capital gains/dividends was more than QBI. The QBI deduction calculated by TTD was less than 20% of qualified business income for sole proprietor. How can that possibly be correct? Shouldn't QBI deduction simply be 20% of the QBI?
