<prompt> Human: Its been awhile since I contributed to my Roth IRA via backdoor so just wanted see if I got it right.123117: tIRA balance is 0.11018: Contributed 5500 for 2017 then converted to Roth IRA. 12218: Can I contribute 5500 for 2018 and convert to Roth again?If so, do I file 8606 once in 2018 for both 17 18 contributions and do nothing for my 2017 taxes due in April?  <response>: Yes, you can contribute and convert again. You will need to file something not sure what exactly - 8606 sounds right this year for the 2017 contribution. You will then need to file next year for the 2018 contribution and both conversions. Because the conversion happened in 2018, it is not reportable on your 2017 return. 