Internal Revenue Service

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

Internal Revenue Service

¹

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

Internal Revenue Service

²

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

Example Sentences

Despite its partial closure amid the government shutdown, the Internal Revenue Service on Thursday released details of its 2026 tax brackets and the dollar value of the standard deduction.

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Remember when the Obama administration’s Internal Revenue Service targeted conservative nonprofits over their tax-exempt status—with the intent to limit speech it didn’t like?

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In August, the Internal Revenue Service released an explanation of how it would interpret the Sept. 30 deadline.

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In recent months, the Republican-controlled Congress has passed more than $9 billion in rescission External link bills to repeal Inflation Reduction Act climate funds, Internal Revenue Service enforcement budgets, public broadcasting, and pandemic-era infrastructure spending.

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The act authorizes the Treasury Department and Internal Revenue Service to extend federal tax filing deadlines for individuals living in state-declared disaster zones, even before a federal disaster declaration is issued.

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