Although the QBI deduction calculations in 2018 TurboTax are presently more functional for Schedule C filers than for those who receive pass-through business income on a Schedule K-1, it's not yet entirely functional even for Schedule C filers, particularly if your AGI is under the $315,000 (MFJ) or $157,500 (others) threshold. Particularly if your AGI is under the threshold, do your own calculation to confirm whatever TurboTax comes up with.
