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

Be aware that the Internal Revenue Service expects taxpayers to be able to substantiate any qualified expenses.

From MarketWatch ● Oct. 24, 2026

And he wanted to talk to incoming Internal Revenue Service Commissioner Billy Long to discuss a probe into his tax deductions.

From The Wall Street Journal ● Oct. 7, 2026

The Internal Revenue Service is calling foul on an heiress who used the strategy—and is slapping her and her husband with a $736 million tax bill.

From The Wall Street Journal ● Sep. 21, 2026

Some private nonprofits and public institutions already report donor names to the Internal Revenue Service for gifts of at least $5,000, but the IRS is barred from disclosing that information to the public.

From The Wall Street Journal ● Sep. 7, 2026

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

From "Liar, Liar" by Gary Paulsen

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