IRS accepted fiscal year in the first year. I even have a letter showing my month end and when my first return was due. 

Whats confusing me is I filed a 2016 return already, per the IRS due date given to me, so its fine to file two 2016 returns?

I am doing it for my own business, I also am a CPA but I am not a tax preparer. I assist the tax associates at my firm as well. My background has nothing to do with the question though.

What its looking like is I would have to do a 2016 and cannot file a 2017 with this fiscal date range in pro connect . and probably amend 2016 and file a 2015... darn it. 

Thanks for the help.