The Internal Revenue Service (IRS) is the revenue service of the United States federal government. It is a bureau of the Department of the Treasury and is responsible for collecting U.S. federal taxes and administering the Internal Revenue Code, the main body of federal statutory tax law. Its duties include providing tax assistance to taxpayers, processing tax returns, and pursuing and resolving instances of erroneous or fraudulent tax filings. The IRS also oversees various benefit programs and conducts criminal investigations into tax-related offenses.
The IRS headquarters directs national tax administration programs, develops policies and regulations, and provides overall leadership and support for the agency's operations across the country.
The headquarters building is a historic federal structure, part of the Federal Triangle complex, known for its Neoclassical architecture. It houses the office of the IRS Commissioner and key administrative functions.
As a major government agency, the work culture is typically formal and mission-driven, emphasizing public service, adherence to legal and ethical standards, accuracy, and efficiency in administering the nation's tax laws. Recent initiatives focus on improving taxpayer experience and modernizing processes.
The IRS headquarters is significant as the command center for the United States' tax system, impacting nearly every individual and business in the country. Decisions and policies originating here have wide-ranging economic and social effects.
The IRS maintains a global presence primarily to serve U.S. taxpayers living and working abroad and to collaborate with international tax authorities. This includes offices and personnel stationed in several U.S. embassies and consulates around the world. These international posts help overseas Americans understand their tax obligations, provide taxpayer services, facilitate information exchange under tax treaties, and support efforts to combat international tax evasion and financial crimes.
1111 Constitution Avenue, NW
Washington
D.C.
USA
Address: Hundreds of local offices across all 50 states and U.S. territories.
Offer accessible, localized support for individuals and businesses, helping them understand and meet their tax obligations.
Address: 3651 S IH 35, Austin, TX 78741 (Example of a major Submission Processing Center)
Serves as a high-volume processing hub for tax documents from specific geographic regions or for particular types of tax forms.
Address: 333 W Pershing Rd, Kansas City, MO 64108 (Example of a major Campus/Service Center)
Key operational site supporting national tax administration, often specializing in certain programs or taxpayer segments.
Address: 1973 N Rulon White Blvd, Ogden, UT 84404 (Example of a major Campus/Service Center)
Contributes to the national tax processing workload and houses specialized units for various IRS functions.
Address: Typically located within U.S. Embassies or Consulates.
Provide specialized tax assistance to the U.S. expatriate community and support international tax compliance efforts.
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As of April 2025, Internal Revenue Service' leadership includes:
Internal Revenue Service has been backed by several prominent investors over the years, including:
The IRS has seen significant leadership appointments over the past year, focusing on enhancing taxpayer services, modernizing its technology infrastructure, and strengthening legal counsel, supported by new funding initiatives. These changes aim to improve the agency's overall effectiveness and public engagement.
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The Internal Revenue Service generally uses a standard email format for its employees, which is common across U.S. federal government agencies. The most prevalent format is [first].[last]@irs.gov. While there might be minor variations for specific roles or legacy systems, this format is widely used for official communication.
[first].[last]@irs.gov
Format
jane.doe@irs.gov
Example
95%
Success rate
Reuters • May 30, 2024
The U.S. Internal Revenue Service announced it will make its Direct File free tax return preparation system a permanent option for taxpayers and plans to expand its scope for the 2025 tax season. This decision follows a successful pilot program that drew 140,000 users....more
IRS.gov Newsroom • April 9, 2024
IRS Commissioner Danny Werfel reported significant improvements in IRS customer service and the successful management of another tax season, attributing these successes to ongoing efforts funded by the Inflation Reduction Act aimed at modernizing the agency....more
U.S. Department of the Treasury • February 22, 2024
An analysis by the IRS and Treasury Department revealed that the top one percent of U.S. households failed to pay over $160 billion in owed taxes in 2021, highlighting the importance of IRS efforts, boosted by Inflation Reduction Act funds, to ensure compliance among the wealthiest taxpayers....more
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