Thank you. I did not put anything about Roth IRA withdrawal in 2017 tax filings as I didn't know how to calculate the taxable income on the earnings from the excess contributions before they were withdrawn (line 15b was blank in 2017 filing). Given that and the fact that I've entered the appropriate amounts from 2018 1099-R in the 2018 tax filings (not submitted yet), do I need to file 1040X for 2017 BEFORE filing my 2018 taxes? So the IRS knows that the PJ amount in the 2018 filing has been accounted for via a 1040X filing for 2017? Since I only owe the 10% additional tax on the excess ROTH contributions for 2017, I assume I don't need to file Form 5329 for 2017.
