It is ‘Taxable Income’.
Taxable income is the amount of income which a person owes to government in a given year.
It is basically the tax liability.
Taxable income is calculated on the basis of total or gross income. It is a tax paid not only on the salary, but also on the other forms of compensations like, bonuses, allowances, tips, commissions, etc.
Gifts, inheritance, child support payments, welfare benefits, etc are not included in the taxable income.