TurboTax will do the calculation for you. To compute the federal income tax amount using the maximum capital gains tax rate, the program will use the Qualified Dividends and Capital Gain Tax Worksheet when both lines 18 and 19 are zero or blank and Form 4952 is not part of the return. Otherwise, the Schedule D Tax Worksheet is used to compute the tax amount.
....I am trying to see where it took the carryforward into account. Where do I look in the various worksheets to see how it was taken into account. I have tried to follow through Schedule D tax calculation sheet, but I don't see it referred to anywhere there. I just want to be sure that it is being used.