Internal Revenue Service

American  

noun

1. the division of the U.S. Department of the Treasury that collects internal revenue, including income taxes and excise taxes, and that enforces revenue laws. IRS

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Internal Revenue Service ¹ Cultural  

1. A federal agency, part of the Department of the Treasury, that collects most federal taxes, including income and Social Security taxes.

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Internal Revenue Service ² Cultural  

1. Part of the United States Department of the Treasury. The IRS is responsible for the collection of all federal taxes, except customs duties.

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Example Sentences

See Examples For:

Internal Revenue Service

With hardship withdrawals, an employee has to prove an “immediate and heavy financial need” under Internal Revenue Service rules.

From MarketWatch ● Sep. 3, 2026

The Internal Revenue Service allows penalty-free withdrawals from retirement accounts after age 59½.

From MarketWatch ● Aug. 3, 2026

Their 2025 tax returns were not available because, as he has done most years, the governor filed for an extension with the Internal Revenue Service and he doesn’t expect to file until October.

From Los Angeles Times ● Jul. 31, 2026

The head of the Internal Revenue Service and Social Security Administration, Frank Bisignano, has touted a record as a Wall Street fix-it man in his attempts to overhaul those two government agencies.

From The Wall Street Journal ● Jul. 23, 2026

Some of them had green Registered Mail stickers on them and were from the Internal Revenue Service.

From "Liar, Liar" by Gary Paulsen