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

Frank Bisignano, CEO of the Internal Revenue Service, said on Wednesday that the agency will go after every “bad actor,” including wealthy individuals and businesses, to collect unpaid taxes.

From Barron's • Apr. 15, 2026

I told him that the money he saved was what he and his wife worked for, and I saw no issue with him giving his children the maximum the Internal Revenue Service allows.

From MarketWatch • Apr. 13, 2026

The Internal Revenue Service took exception to the company’s tax-exempt religious status, and by 1985 the business owed roughly $1.5 million in back taxes.

From The Wall Street Journal • Apr. 9, 2026

The current SEP IRA contribution limit for individuals over 50 is the lesser of 25% of compensation or $72,000, according to the Internal Revenue Service.

From MarketWatch • Apr. 4, 2026

I was aware that I was being carefully sized up while he talked primarily of F.B.I. and Internal Revenue Service close surveillance of his organization, and of a rumored forthcoming Congressional probe.

From "The Autobiography of Malcolm X" by Alex Malcolm X;Hailey