1. I have selected to Itemize deductions; the figure on 1040, line 12e, matches the total from Schedule A, line 17, and the box on line 18 is checked (use itemized deductions even if they are less th...
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1. I have selected to Itemize deductions; the figure on 1040, line 12e, matches the total from Schedule A, line 17, and the box on line 18 is checked (use itemized deductions even if they are less than the standard deduction). 2. If Schedule A, line 5a is '0' (it was blank when I had no sales tax entered, I had to override by typing a '0' in this field), then everything else is fine, including Form 6251, line 2a, which matches my Schedule A total. 3. If Schedule A, line 5a is blank, then Sch A, line 7 is also blank, and then Form 6251, line 2a is changed to my standard deduction, which is much higher than my itemized deductions, and causes my AMT tax to be much, much higher!