Income tax Law and legislation 1,544 Taxation 972 Foreign income 223 Corporations 137 Double taxation 134 Impôt sur le revenu 99 more ... Tax returns 99 Legislative history 75 Legislative histories 73 Inheritance and transfer tax 67 Investments, Foreign 56 Noncitizens 54 Corporations, Foreign 53 Tax administration and procedure 53 Tax planning 51 Impôt 46 Gifts 43 Impôts 42 Einkommensteuer 41 Investments, American 41 International business enterprises 40 History 31 Inkomstenbelasting 31 Tax credits 29 Internal revenue law 25 Double imposition 24 Accounting 22 Tax incentives 22 Budget 21 less ...