this one for related questions recently submitted few minutes ago.

Schedule Z-Head of Household If taxable income is over: But not over: The tax is: O $ 14.100 10% of taxable income $ 14,100 $ 53,700 $1.410 plus 12% of the excess over $14.100 $ 53.700 $ 85.500 $6.162 plus 22% of the excess over $53.700 $ 85,500 $163.300 $13.158 plus 24% of the excess over $85.500 $163,300 $207.350 $31,830 plus 32% of the excess over $163.300 $207,350 $518.400 $45,926 plus 35% of the excess over $207,350 $518.400 $154.793.50 plus 37% of the excess over $518.400