That second bracket, how does the curve look that goes between 100K to 300K, or is it a straight line? If it is straight line then actually my taxes will be about the same as they are now. If parabolic them my taxes may go down a few percent. No big deal for me.
Its 20 percent of taxable income over 100 k if youre married.
Lets say your taxable income is 150 K. You pay zero on the first fifty thousand. You pay 10 percent on the next 50K up to 100K and 20% on the next 50 up to 150K. Or 15K total taxes.