Hi, I received a 1099-R from Vanguard who I have a traditional and Roth IRA with. I converted some of my 2017 traditional IRA contributions to the Roth IRA (back door Roth contribution). My NJ state return is asking for 'Contributions previously taxed (Column E) for the Pension, Annuities + IRAS Wks form. Where can I find this information? Is this from previous years where I may have converted from a traditional to Roth IRA? (Please see attached PDF) Thank you in advance for any feedback!!
