Tax exemption Taxation 5 Housing 3 Law and legislation 3 Nonprofit organizations 3 Real property tax 3 Charitable uses, trusts, and foundations 2 Tax havens 2 Associations, institutions, etc 1 Clubs 1 Cost effectiveness 1 Economic aspects 1 Finance 1 Gifts 1 Handbooks, manuals, etc 1 Income tax 1 Inheritance and transfer tax 1 Investments, American 1 Lobbying 1 Political activity 1 Property tax 1 Public interest 1 Revenue 1 Tax planning 1