Get your taxes done using TurboTax

That's a good try but there are two problems with that. 

 (1) line 12b is associated with the standard deduction.  I am taking the itemized deduction.

(2) line 12b is limited to the maximum of $600.  My actual cash contribution exceeds $600.  It is over $2300.

There is bug or glitch in TT but they are sleeping on this one.