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  1. Internal Revenue Service | An official website of the United ...

    Pay your taxes. Get your refund status. Find IRS forms and answers to tax questions. We help you understand and meet your federal tax responsibilities.

  2. Internal Revenue Service (IRS) | USAGov

    The Internal Revenue Service (IRS) administers and enforces U.S. federal tax laws.

  3. Internal Revenue Service - Wikipedia

    The Internal Revenue Service (IRS) is the revenue service for the United States federal government, which is responsible for collecting U.S. federal taxes and administering the …