This appears to be similar to my situation in that I had a NOL in 2018 hat left me with carryover for 2019. The issue is that TurboTax does not calculate the NOL therefore the worksheet does not exist in TurboTax. While you can enter the NOL into TurboTax as was answered you will have to fill out the worksheet (from IRS Pub 536) manually and to be able to attach it to your return you will have to file your return manually. In addition because TurboTax does not handle the NOL it is not aware of the 80% rule that was part of the 2017 Tax Act (the maximum carryforward you can apply to your return is 80% of you income)
