I spoke with a revenue agent this morning that is one of the people that processes the 500 NOL form. I struggled with this form as well and the instructions are terrible. She told me that if you are carrying the loss forward then fill in the top part of page 1 down to "type of loss". You do not fill in the middle section unless you are carrying back losses. You also have to complete page 2.  You will need to fill out the form for each year that has a loss carry forward beginning with the 2015 tax year because that is when the rule changed.

I hope that ProSeries is seriously making an effort to get this form in the system because this should have already been addressed by them.

Good luck!