Well, it doesn't get reduced on Schedule A. But when I went through the irritating Step-by-Step, the higher figure didn't carry over to Form 1040. Indeed the $300 didn't carry over, either! (No, no glitches here! Move along now!) It's supposed to appear on Line 10b, but it doesn't. But it does show up on line 10c, which adds 10a and 10b.
Of course the fault lies with the Congressfolk who keep changing the laws and the IRS bureaucrats who try to keep up with the changes. TurboTax EVENTUALLY gets this stuff right, but it may take a year or two, by which time of course the laws will be changed again. My only gripe is that TurboTax Help generally denies there IS a problem.
