Internal Revenue Service (United States)

Internal Revenue Service (United States)
Agency name	Internal Revenue Service (United States)
Formed	1862
Jurisdiction	United States
Headquarters	Washington, D.C.
Employees	~100,000
Chief1 name	Commissioner of Internal Revenue
Parent agency	Department of the Treasury

Contents

Internal Revenue Service (United States) The Internal Revenue Service (United States) administers and enforces federal tax laws enacted by the United States Congress and codified in the Internal Revenue Code. It operates under the oversight of the United States Department of the Treasury and reports to the President of the United States through the Secretary of the Treasury. The agency's activities intersect with institutions such as the United States Tax Court, the United States Department of Justice, and financial regulators including the Federal Reserve System.

History

The agency traces origins to tax collection mechanisms established during the American Civil War under President Abraham Lincoln and Treasury Secretary Salmon P. Chase. Revenue administration evolved through legislation including the Revenue Act of 1862, the Sixteenth Amendment to the United States Constitution, and the Revenue Act of 1913 following Prohibition-era shifts. Major organizational reforms occurred during the Great Depression and after World War II, with further modernization prompted by the Tax Reform Act of 1969, the IRS Restructuring and Reform Act of 1998, and post-September 11 attacks security concerns. High-profile episodes involving the agency intersect with figures such as Richard Nixon (tax controversies), Al Capone (tax prosecution by the United States Department of Justice), and events like the Teapot Dome scandal that shaped oversight. Investigations by bodies including the United States Congress and scrutiny from media outlets like the New York Times and The Washington Post have periodically driven change.

The agency is led by the Commissioner of Internal Revenue, appointed by the President of the United States and confirmed by the United States Senate. Its headquarters in Washington, D.C. houses divisions including Wage and Investment (W&I), Small Business/Self-Employed (SB/SE), Large Business and International (LB&I), and Tax Exempt and Government Entities (TE/GE), coordinating with the Treasury Inspector General for Tax Administration and the Office of Management and Budget. Regional and local operations span service centers and examination sites across states such as California, Texas, New York (state), and Florida. The agency employs attorneys, revenue agents, and information technology specialists who interact with institutions like Ernst & Young, KPMG, PricewaterhouseCoopers, Deloitte, and the Securities and Exchange Commission for regulatory compliance. Labor relations have involved unions such as the National Treasury Employees Union.

Statutory duties derive from the Internal Revenue Code and include individual and corporate tax processing, administration of credits like the Earned Income Tax Credit, and oversight of retirement plans under the Employee Retirement Income Security Act of 1974. The agency enforces reporting obligations associated with forms such as Form 1040, Form 1099, and Form W-2, and oversees international information exchange pursuant to agreements like the Foreign Account Tax Compliance Act and Tax Treaty networks including treaties with United Kingdom, Canada, and Germany. It administers programs such as the Affordable Care Act tax provisions and coordinates with agencies like the Internal Revenue Service Criminal Investigation Division and the Federal Trade Commission on fraud prevention.

Enforcement tools include audits, examinations, liens, levies, and civil investigations conducted in concert with the United States Department of Justice for criminal prosecution. The agency uses data matching with financial institutions, employers, and partners including Social Security Administration, State Revenue Departments, and international counterparts like Her Majesty's Revenue and Customs and the Canada Revenue Agency. High-profile enforcement has targeted figures such as Martha Stewart and entities like multinational corporations under transfer pricing scrutiny guided by the Organisation for Economic Co-operation and Development guidelines. Litigation frequently involves the United States Tax Court, the United States District Court, and appellate review by the United States Court of Appeals for the Federal Circuit.

The agency has faced criticism and legal challenges over issues including alleged targeting of political groups, data breaches affecting taxpayers tied to incidents investigated by the Federal Bureau of Investigation and Department of Homeland Security, and disputes over taxpayer rights enforced by the National Taxpayer Advocate. Controversial episodes have involved congressional investigations by committees such as the United States House Committee on Ways and Means and the United States Senate Committee on Finance, and public debate in outlets like Bloomberg News and The Wall Street Journal. Cases involving tax-exempt determinations for organizations linked to political advocacy, interactions with lobbying entities such as the American Civil Liberties Union, and high-profile prosecutions have influenced reform efforts embodied in statutes like the Taxpayer Bill of Rights.

Modernization initiatives include electronic filing systems coordinated with vendors and platforms such as Intuit, H&R Block, and TurboTax, alongside internal IT projects that interface with contractors like Lockheed Martin and Accenture. Cybersecurity programs reference standards from the National Institute of Standards and Technology and partnerships with Microsoft, Amazon Web Services, and the Department of Defense for resilience. The agency's data analytics and information reporting rely on technologies associated with firms including Palantir Technologies and academic collaborations with institutions like Harvard University and Massachusetts Institute of Technology.

Funding is authorized through annual appropriations by the United States Congress and administered via the Department of the Treasury budget process, with oversight from the Government Accountability Office and the Congressional Budget Office. Debates over funding levels involve stakeholders such as Senator Chuck Grassley, Senator Ron Wyden, Representative Richard Neal, and fiscal policy organizations like the Brookings Institution and the Heritage Foundation. Budget allocations affect enforcement capacity, technology upgrades, and taxpayer services, shaping interactions with state revenue agencies and private sector partners.