Income tax 118 Taxation 68 Foreign income 15 History 13 Corporations 12 Law and legislation 11 Spendings tax 8 more ... Flat-rate income tax 7 Income 7 International business enterprises 7 Finance 6 Fiscal policy 6 Corporations, American 5 Economic aspects 5 Rich people 5 Investments, Foreign 4 Negative income tax 4 States 4 Tax evasion 4 Tax incidence 4 Tax returns 4 Capital costs 3 Corporations, Foreign 3 Economic conditions 3 Education 3 Evaluation 3 Finance, Public 3 Households 3 Public welfare 3 Social policy 3 less ...