@macuser_22 @VolvoGirl Regarding your notes about the IRS instruction that reads:
"More than one distribution. If you (or
your spouse if filing jointly) received
more than one distribution, figure the
taxable amount of each distribution and
enter the total of the taxable amounts on
line 4b. Enter the total amount of those
distributions on line 4a."
Part of your response was:
(That instruction) Is on page 29 of the instructions under the *IRA Distributions* section and applies to multiple IRA distributions, not a mix of IRA's and other types of retirement plans that comes later on page 30.
Thus a both fully taxable IRA's and pensions, 401(k)'s can have nothing on line 4a or some on 4a if not fully taxable.
The instructions for IRA's don't apply to pensions and annuities, and the pensions and annuities don't apply to IRA's."
I don't think that any interpretation of the instructions that leads to the gross distribution amount being less than the taxable amount is what the IRS intends.
But guess what, TurboTax doesn't follow this instruction in the case of two fully taxable Pension distributions either - just tested it. Also, I tested it on the 2016 version. It looks like TurboTax has never followed this instruction.
It never looked weird as long as the IRA's and Pension lines were separate, because as long as everything was fully taxable for a given distribution type (IRA or Pension) a blank gross amount looked OK, even if it wasn't per the instructions for multiple distributions. And if there were any partially taxable distributions, either IRA or Pension, the corresponding (separated) line would show the total gross amount of all distributions of that type. So until this year, it was literally not possible to get the nonsense result that TurboTax is now putting on line 4a, when there is a partially taxable IRA distribution and a fully taxable pension distribution, or some similar combination of fully and partially taxable distributions.