Thanks again for responding. I have tried removing the year end IRA value to see what happens. When I do remove the value the amount of tax due goes down. However it goes down because the taxable IRA distribution amount (line 4b) goes down (to an incorrect value). Putting the year end value back raises the tax due back up and the line 4b back to the correct value. So it appears the the tax due may be correct, I just don't understand why the tax goes up when the IRA distribution is first entered, and it goes up again when the year end value is entered. When that happens, TurboTax leads one to suspect that somehow the year end value is being taxed.
