Thanks @DanaB27 ! I think I am clear now on the Roth conversion part of the question. I will enter the aggregate value of the cost basis of both IRAs ($XXX for non-deductible IRA + $0 for rollover IRA) and aggregate value for the end of year value of both IRAs ($MMM for non-deductible IRA +$NNN for rollover IRA).
For the Deduction section, I'm still a little bit unclear. I haven't made any excess contributions to this (non-deductible) IRA, and never have in the past. Nonetheless, TurbTotax always asks for a) amount for contributions; b) prior year cost basis; and c) end of year value. Am I correct in understanding that for this section I need to enter the cost basis and the end of year amount for this non-deductible IRA only (i.e., disregard the other rollover IRA to which I have never made any contributions other that direct rollovers)?
Thanks again for your help!
