As VolvoGirl said, check the amount of your itemized AND check line 10b for charitable contributions on your 1040. Turbo Tax brought that forward from my Schedule A (line 11), and when it did (even though it left the amount on Schedule A), that's what blocked me from itemizing. I couldn't take the deduction twice, obviously, and it was more advantageous to have it taken off on 1040 line 10b. By not counting the amount on schedule A line 11, my deductions fell below the 27,400.
