Greta the same exact thing has happened to me. I posted this question earlier and I believe the answer was that it may be correct.... the software is Computing it, but not a definitive answer. I would hope the pro series is doing it correctly and that the carry forward is accurate, and I would think that if it is not correct and ProSeries would have corrected this error by now. Maybe on the n o l explanation line just type in "nol carryforward from last year" since that is what Pro Series is doing... . Or you can just ignore and delete the carry-forward if you believe that it is inaccurate . I tried to research this online but I could not find much so I am in the same boat as you. but this is just my opinion Greta and you do what you want to do. Hope this helps.