Thanks for the clarification.My 2017 form 8606 line 23 is non-zero, it looks like I'm off to amend my 2017 taxes.Thanks again.

Thank You Dmertz.I need to be sure I understand.Is "2018 Form 8606 line 24 ..." in your answer referring to the 8606 I completed in 2018 for my 2017 tax year?If...