Greetings. I'm catching up on prior year returns. I filed an extension and I'm preparing to file my 2017 return. I will have a large NOL that I can carry back to 2015 and 2016. I have not yet filed either of those returns yet but I'm preparing to do so. My question is: Do I have to file 2015 and 2016 and then amend them to claim to NOL Carryback? Or can I file the original returns with the NOL carry back and form 1045 Schedules A & B?
