Focuses on the cost of government, supermajority tax limitations and flat tax proposals. Offers grassroots resources.

An independent, non-statutory body established to advise the Government on the development and implementation of taxation legislation and the ongoing operation of the tax system.

The ATA promotes worldwide excellence in tax education, research, and practice. The Association is a voluntary organization of persons interested in accounting education and research.

The Committee On State Taxation (COST) is the premier state tax organization representing taxpayers. COST's objective is to preserve and promote equitable and nondiscriminatory state and local taxation of multijurisdictional business entities.

ITP is dedicated to a high degree of professionalism with a strict Code of Ethics and Standards of Professional Conduct for its members, to uniform and equitable administration of ad valorem and sales & use taxes, and to minimizing cost of tax administration and compliance.

The Multistate Tax Commission is an organization of state governments that works with taxpayers to administer, equitably and efficiently, tax laws that apply to multistate and multinational enterprises.

The National Association of Tax Practitioners is the largest tax association serving all tax preparers, Enrolled Agents, Certified Public Accountants, Certified Financial Planners, and Attorneys.

The National Tax Association is a nonpartisan, nonpolitical educational association that fosters study and discussion of complex and controversial issues in tax theory, practice and policy, and other aspects of public finance.

One of the nation's original public policy research groups, monitoring fiscal issues at the federal, state and local levels since 1937. This Web site includes data on taxes and spending at all levels of government, including Tax Freedom Day, Tax Bite in the Eight Hour Day, Federal Tax Burden by State, who pays federal income taxes, as well as information on capital gains taxes, corporate taxes, th