Get your taxes done using TurboTax

Offhand I can't think of anyplace in TurboTax that asks for "Subscription Fair Market Value", so where are you seeing that?

Was your employer's ESPP a "Qualified" ESPP allowing for a discounted purchase price?  Is 15% the correct discount for this plan?  Are your sales Qualifying on NonQualifying?  What's being reported on your W-2, if anything is, due to these sales?