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United States Internal Revenue Service

Internal Revenue Service
IRS
Logo of the Internal Revenue Service.svg
Agency overview
Formed July 1, 1862; 154 years ago (1862-07-01) (though the name originates from 1918)
Jurisdiction Federal government of the United States
Headquarters 1111 Constitution Ave., NW; Washington, DC 20224
Employees 79,890 (2015)
Annual budget $11.4 billion (2015)
Agency executive
Parent agency Department of the Treasury
Website www.irs.gov

The Internal Revenue Service (IRS) is the revenue service of the United States federal government. The government agency is a bureau of the Department of the Treasury, and is under the immediate direction of the Commissioner of Internal Revenue. The IRS is responsible for collecting taxes and administering the Internal Revenue Code, the federal statutory tax law of the U.S. Its duty to maximize tax revenue entails providing tax assistance to taxpayers, as well as pursuing and resolving instances of erroneous or fraudulent tax filings. The IRS has also overseen various benefits programs, and enforces portions of the Affordable Care Act.

The IRS originated with the Commissioner of Internal Revenue, a federal office created in 1862 to assess the nation's first income tax, which was to raise funds for the American Civil War. The temporary measure provided over a fifth of the Union's war expenses and was allowed to expire a decade later. In 1913, the Sixteenth Amendment to the U.S. Constitution was ratified authorizing Congress to impose a tax on income, and the Bureau of Internal Revenue was established. In the 1950s, the agency was renamed the Internal Revenue Service and significantly reorganized. The Tax Reform Act of 1986 modernized the IRS and restructured it along a private sector model.

As of the 2015 fiscal year, the IRS processed almost 240 million returns and collected approximately $3.3 trillion in revenue, spending 35¢ for every $100 it collected.

In July 1862, during the American Civil War, President Abraham Lincoln and Congress passed the Revenue Act of 1862, creating the office of Commissioner of Internal Revenue and enacting a temporary income tax to pay war expenses.


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