Thanks for illustrating where the negative sign is supposed to go on line 20. I see an "x" in that space, instead of a "-" so I will have to hope that the "x" also means a negative. I also see an "x" next to line 24, so I'm going to assume that TurboTax is adding two negatives, as you said.
Perhaps I am taking the standard deduction, though it is not filled in on line 23. I assumed that it wasn't filled in because line 24 shows "Line 20 minus line 22 or 23, whichever applies. (This line MUST be filled in)." Line 24 has that negative number, line 20 minus my total itemized deductions.
Thanks for your insights. If I have more questions, I'll post them!
