Taxation 20 Income tax 10 Intergovernmental tax relations 4 Law and legislation 4 History 3 Local taxation 3 Taxation, State 3 Accounting 2 Corporations 2 Depreciation allowances 2 Double taxation 2 Finance, Public 2 Inheritance and transfer tax 2 States 2 U.S. states 2 Awards 1 Business enterprises 1 Business enterprises, Foreign 1 Capital gains tax 1 Consolidation and merger of corporations 1 Currency question 1 Depreciation 1 Economic policy 1 Excess profits tax 1 Gifts 1 Grants-in-aid 1 Housing 1 Investments, American 1 Legislative histories 1 Property tax 1