Yes, that helped. I deleted the 1099-R and re-entered it and now the question came up. Thanks!
However, it still doesn't solve the problem even after I enter my total basis as of December 31 2018. Below is my scenario - please let me know how I should enter the information differently and avoid the issue.
I made a nondeductible contribution of $4000 in 2018, so my tax basis for 2018 is $4000. In 2019, I made $5000 nondeductible contribution, and converted the total amount $9000 ($4000 + $5000) to Roth-IRA. The total distribution amount in 1099-R is $9000, but I still got an error message when I tried to eFile: "Taxable amount should not be zero if there is no prior year excess traditional IRA contribution on line 4 of the IRA Information Worksheet."
Is it possible that TurboTax just had a bug in the validation rule that it doesn't properly take into account of the tax basis?
Thanks again for your help!
