Get your taxes done using TurboTax

in Forms View (not sure if this is in the online version, but certainly in the Desktop Deluxe), 

 

pull up this form:  "qualified dividends and Capital gains tax' - it will show the math on how the tax is calculated.  

 

Form 1040, Line 3a is 15% while 3b MINUS 3A is based on the tax table 

Schedule 1 Line 13 is also at 15%

 

On the schedule I referenced, you'll see that your qualified dividends and cap gains are subtracted from your taxable income on lines 2 and 3 and then it's taxed @ 15% on line 20 while everything else is taxed based on the tax table.... it's a lot of math, but that is the end result.