Turbotax uses line 20z of the k-1 to later ask further questions about the QBI components so enter the QBI income or loss. Go through 1 or 2 more screens and you should come to one that says, "We see you have Section 199A income" (QBI). check either the 1st or 2nd circle. the next screen is where you enter the components - there may be no schedule A so the info could be on 20Z, 20Z1, 20Z2 etc.