Law and legislation Income tax 25 Taxation 22 Double taxation 18 Treaties 14 Internal revenue law 4 Foreign income 3 more ... Budget 2 Corporations 2 Corporations, Foreign 2 Noncitizens 2 Nonprofit organizations 2 Tax administration and procedure 2 Amortization deductions 1 Assignments for benefit of creditors 1 Bankruptcy 1 Confidential communications 1 Controlled foreign corporations 1 Cost control 1 Depreciation allowances 1 Disclosure of information 1 Energy industries 1 Enterprise zones 1 Expatriation 1 Farmers 1 Farms 1 Foreign tax credit 1 Goodwill (Commerce) 1 Health insurance 1 Inheritance and transfer tax 1 less ...