For 2018, the income tax liability for a single taxpayer with a taxable income of
$13,350
will be the same as the income tax liability for a married taxpayer filing separately
with $13,353 taxable income.
will be $1,353 as calculated using the percentage tax rate from the lowest bracket.
can be calculated by using the percentage tax rates from the lower three tax brackets.
can be calculated by multiplying $13,353 by the 12 percent tax rate.