After you file

Thanks for your reply.

My 2018 was deductible so that is why i think it did not appear on my 2019 8606. 

In 2020 i converted my deductible IRA from 2018 and non deductible form 2019 to Roth but i reported the basis only for 2019 (6000 dollars) and therefore it has calculated a tax payable for me on the deductible part plus earnings. Which I think is right. Do you agree?