According to http://www.naea.org, “an Enrolled Agent (EA) is a federally-authorized tax practitioner who has technical expertise in the field of taxation and who is empowered by the U.S. Department of the Treasury to represent taxpayers before all administrative levels of the Internal Revenue Service for audits, collections, and appeals.
‘Enrolled’ means to be licensed to practice by the federal government, and ‘Agent’ means authorized to appear in the place of the taxpayer at the IRS. Only Enrolled Agents, attorneys, and CPAs may represent taxpayers before the IRS.
The license is earned in one of two ways, by passing a comprehensive examination which covers all aspects of the tax code, or having worked at the IRS for five years in a position which regularly interpreted and applied the tax code and its regulations. All candidates are subjected to a rigorous background check conducted by the IRS.
Enrolled Agents advise, represent, and prepare tax returns for individuals, partnerships, corporations, estates, trusts, and any entities with tax-reporting requirements. Enrolled Agents’ expertise in the continually changing field of taxation enables them to effectively represent taxpayers audited by the IRS. In addition to the stringent testing and application process, the IRS requires Enrolled Agents to complete 72 hours of continuing professional education, reported every three years, to maintain their Enrolled Agent status. Because of the knowledge necessary to become an Enrolled Agent and the requirements to maintain the license, there are only about 46,000 practicing Enrolled Agents.
Only Enrolled Agents are required to demonstrate to the IRS their competence in matters of taxation before they may represent a taxpayer before the IRS. Unlike attorneys and CPAs, who may or may not choose to specialize in taxes, all Enrolled Agents specialize in taxation. Enrolled Agents are the only taxpayer representatives who receive their right to practice from the U.S. government (CPAs and attorneys are licensed by the states).”