Well, thank you for all your help!

@macuser_22 : Well, for people whose MAGI are above the threshold allowed to contribute directly to their Roth IRAs, the backdoor IRA can still be used as a veh...

Same backdoor IRA method of contribution, then conversion to Roth.I didn't realize my tax-sheltered IRA needed to be included in the basis calculation.

This is for 2015 and 2016.My CPA needs to amend 2017 for me to get me the basis for 2018's Form 8606,

@macuser_22:Ok, thanks again for your explanations.This clarifies a lot.I need to amend my 2015 and 2016 returns.One other item I'm struggling with is that my C...