I'm in a very similar situation. My form 8606 from 2015 does show 5,500 in box 14, so should I enter that amount on the "Let's Find Your IRA Basis" page in the "Total Basis as of December 31, 2015" box? In my case I made the 2015 non-deductible contribution in Jan of 2016, I didn't even have an IRA on December 31 2015 so it seems strange to enter a value there.
