I have a rollover IRA that consist of IRA deductible and non-deductible contributions and rollover from three different 401k plans. I need to calculate the IRA contributions that were non-deductible for the Roth conversion. Besides looking for 8606 are there other was to find the non-deductible contributions from my previous tax returns?
On a couple tax returns, I see a line 16 on 1040 labeled "rollover" with the 16a being the rollover amount. In one year, there's an amount in 16b. In another year, 16b is blank. Are rollover amounts, deductible or non-deductible contributions?
