Thank you for your direct answers. I understood your example but to put it in real terms, I took a $48000 distribution from IRA #1 and zero from IRA #2. I entered my $12,000 basis and saw my tax due drop. On the next screen I entered, as requested, the total value of my IRAs as of 31 Dec 2020. That amount is $1,159,370. The tax savings for this year almost completely disappeared. Considering all these numbers, did the program just prorate the percentage of non-deductible contributions used and keep track of them for all years to come? Thank you.
