When I entered the 2018 contribution into TurboTax for the 1040X Amended return, it never generated an 8606 form for the 2018 1040X return and continued to state that I owed 100% taxes for the contribution loss. I searched for other answers to the problem, and one suggestion ended up working for me.
I had to remove the original Roth contribution from my 2018 return, then filled out the 2019 1099-R forms for my wife and I that showed what our withdrawal/distribution was. TurboTax then showed no taxes were due, so we completed the amended 2018 1040X form and mailed it in.
For the 2019 return, TurboTax said the 8606-T form will not be available until 2/12/2020, so we're waiting until then to finish up our 2019 return.
