(n) tax-free income
(n) disposable income
disposable personal income
DPI
(n) salaried employee
(n) income tax withheld at the source
(n) personal income tax
(n) large income earner
people in the higher income brackets
(n) gross national income
GNI
(n) income certificate
certificate of earnings
(n) corporate income tax
(n) permanent-income hypothesis
(n) real national income
(n) nominal national income
(n) income elasticity of demand
(n) Gini coefficient
Gini's coefficient
(n) (obsc) support for medical treatment for those on low income
Medicaid