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<bill bill-stage="Introduced-in-Senate" dms-id="A1" public-private="public" slc-id="S1-GAI26312-HK2-9C-X6W"><metadata xmlns:dc="http://purl.org/dc/elements/1.1/">
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<dc:title>119 S4639 IS: IRS Whistleblower Program Improvement Act</dc:title>
<dc:publisher>U.S. Senate</dc:publisher>
<dc:date>2026-05-21</dc:date>
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<dc:language>EN</dc:language>
<dc:rights>Pursuant to Title 17 Section 105 of the United States Code, this file is not subject to copyright protection and is in the public domain.</dc:rights>
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<distribution-code display="yes">II</distribution-code><congress>119th CONGRESS</congress><session>2d Session</session><legis-num>S. 4639</legis-num><current-chamber>IN THE SENATE OF THE UNITED STATES</current-chamber><action><action-date date="20260521">May 21, 2026</action-date><action-desc><sponsor name-id="S153">Mr. Grassley</sponsor> (for himself and <cosponsor name-id="S247">Mr. Wyden</cosponsor>) introduced the following bill; which was read twice and referred to the <committee-name committee-id="SSFI00">Committee on Finance</committee-name></action-desc></action><legis-type>A BILL</legis-type><official-title>To provide additional support to whistleblowers who report information about noncompliance with Federal tax laws.</official-title></form><legis-body display-enacting-clause="yes-display-enacting-clause"><section section-type="section-one" id="S1"><enum>1.</enum><header>Short title</header><text display-inline="no-display-inline">This Act may be cited as the <quote><short-title>IRS Whistleblower Program Improvement Act</short-title></quote>.</text></section><section section-type="subsequent-section" id="id1C672D5494634ABA9CA2CE1B6C9AEC96"><enum>2.</enum><header>Standard and scope of review of whistleblower award determinations</header><subsection id="idEAE3123D2AC34A178457D7FC0CBBE954"><enum>(a)</enum><header>In general</header><text display-inline="yes-display-inline">Paragraph (4) of <external-xref legal-doc="usc" parsable-cite="usc/26/7623">section 7623(b)</external-xref> of the Internal Revenue Code of 1986 is amended—</text><paragraph id="id57965131499A42D094D4584EE462F099"><enum>(1)</enum><text>by striking <quote>appealed to</quote> and inserting <quote>reviewed by</quote>; and</text></paragraph><paragraph id="id3AC29EB832BE4011A5B16EE8CCEE442F"><enum>(2)</enum><text display-inline="yes-display-inline">by adding at the end the following: <quote>Any review by the Tax Court under the preceding sentence shall be de novo and shall be based on the administrative record established at the time of the original determination and any additional newly discovered or previously unavailable evidence.</quote>.</text></paragraph></subsection><subsection id="id185048503BA447FFB0825F370BD711C2"><enum>(b)</enum><header>Conforming amendment</header><text>The heading of paragraph (4) of <external-xref legal-doc="usc" parsable-cite="usc/26/7623">section 7623(b)</external-xref> of the Internal Revenue Code of 1986 is amended by striking <quote><header-in-text level="paragraph" style="OLC">Appeal</header-in-text></quote> and inserting <quote><header-in-text level="paragraph" style="OLC">Review</header-in-text></quote>.</text></subsection><subsection id="idBD61F3E20E9A48F1889BA8DA5153C88E"><enum>(c)</enum><header>Effective date</header><text>The amendments made by this section shall apply to petitions under <external-xref legal-doc="usc" parsable-cite="usc/26/7623">section 7623(b)(4)</external-xref> of the Internal Revenue Code of 1986 which are pending on, or filed on or after, the date of the enactment of this Act.</text></subsection></section><section id="idAC7D9AC8A65F447D9060048B30D10A98"><enum>3.</enum><header>Exemption from sequestration</header><subsection id="id76ED327B64A74C84ACF5FCD086F4809F"><enum>(a)</enum><header>In general</header><text display-inline="yes-display-inline">Section 255 of the Balanced Budget and Emergency Deficit Control Act of 1985 (<external-xref legal-doc="usc" parsable-cite="usc/2/905">2 U.S.C. 905</external-xref>) is amended—</text><paragraph id="id885ffe374e444736ab30d0013f13a224"><enum>(1)</enum><text>by redesignating subsection (k) as subsection (l); and</text></paragraph><paragraph id="id808b5239195142c1b6e7df97b1ba29d5"><enum>(2)</enum><text>by inserting after subsection (j) the following:</text><quoted-block style="OLC" display-inline="no-display-inline" id="id8ADF7555F8764F52B6B4CD67109BEE17"><subsection commented="no" display-inline="no-display-inline" id="id69877E8FCD3546BF9165D499C9539CF5"><enum>(k)</enum><header>Awards to whistleblowers</header><text>An award authorized under <external-xref legal-doc="usc" parsable-cite="usc/26/7623">section 7623</external-xref> of the Internal Revenue Code of 1986 shall be exempt from reduction under any order issued under this part.</text></subsection><after-quoted-block>.</after-quoted-block></quoted-block></paragraph></subsection><subsection id="id77b0501a2117485fafcf80228a111048"><enum>(b)</enum><header>Applicability</header><text>The amendment made by this section shall apply to any sequestration order issued under the Balanced Budget and Emergency Deficit Control Act of 1985 (<external-xref legal-doc="usc" parsable-cite="usc/2/900">2 U.S.C. 900 et seq.</external-xref>) after the date of enactment of this Act.</text></subsection></section><section id="id4429D9C554FA496EA3018AC96FBE63A1"><enum>4.</enum><header>Whistleblower privacy protections</header><subsection id="id9219E81A4C784A0694BC507E25650A41"><enum>(a)</enum><header>In general</header><text display-inline="yes-display-inline">Paragraph (6) of <external-xref legal-doc="usc" parsable-cite="usc/26/7623">section 7623(b)</external-xref> of the Internal Revenue Code of 1986 is amended by adding at the end the following new subparagraph:</text><quoted-block style="OLC" display-inline="no-display-inline" id="idB95E6175BFAE4D609AE49C2D32F04C22"><subparagraph commented="no" id="ida59a1de3f5574b5ebd83b1a89bc12cae"><enum>(D)</enum><header>Whistleblower anonymity before the Tax Court</header><text>Notwithstanding sections 7458 and 7461, a whistleblower shall proceed anonymously before the Tax Court for all proceedings under this section absent a finding by the Tax Court that a societal interest exists for disclosing the whistleblower’s identity which exceeds the potential harm disclosure could cause to the whistleblower.</text></subparagraph><after-quoted-block>.</after-quoted-block></quoted-block></subsection><subsection id="id8A544955A09342DCBDFDAA24B91554D6"><enum>(b)</enum><header>Effective date</header><text>The amendment made by this section shall apply to petitions filed with the Tax Court which are pending on, or filed on or after, the date of the enactment of this Act.</text></subsection></section><section id="id8DE4C8912843422682C9CF9DDF2D970D"><enum>5.</enum><header>Modification of IRS whistleblower report</header><subsection id="id5E08B15A07B94D50AF169AE9345E9E1F"><enum>(a)</enum><header>In general</header><text>Section 406(c) of division A of the Tax Relief and Health Care Act of 2006 is amended by striking <quote>such use,</quote> in paragraph (1) and inserting <quote>such use (which shall include a list and descriptions of the top tax avoidance schemes, not to exceed 10, disclosed by whistleblowers during such year),</quote>.</text></subsection><subsection id="id3F1F4C8049864B958DB643A1F5B0DFEE"><enum>(b)</enum><header>Effective date</header><text>The amendments made by this section shall apply to reports for fiscal years ending after the enactment of this Act.</text></subsection></section><section section-type="subsequent-section" id="id356B500D7F7344458F04810602DD7C94"><enum>6.</enum><header>Interest on whistleblower awards</header><subsection id="id7F5F401F4CFD4EFFBC21028A5C218A79"><enum>(a)</enum><header>In general</header><text display-inline="yes-display-inline"><external-xref legal-doc="usc" parsable-cite="usc/26/7623">Section 7623(b)</external-xref> of the Internal Revenue Code of 1986 is amended by adding at the end the following new paragraph:</text><quoted-block style="OLC" display-inline="no-display-inline" id="id25DDAB6C5DCD4FFEA27ACF0F1F1BC5BA"><paragraph id="id7D89DE8FAE504797A25E6F6585B6FC1D"><enum>(7)</enum><header>Interest</header><subparagraph id="id53D72802A9A64CD39D9A4340F785D345"><enum>(A)</enum><header>In general</header><text>If the Secretary has not provided notice to an individual described in paragraph (1) of a preliminary award recommendation before the applicable date, the amount of any award under this subsection shall include interest from such date at the overpayment rate under section 6621(a).</text></subparagraph><subparagraph id="idF122CCD32F844BE497F1132CE90ED054"><enum>(B)</enum><header>Exception</header><text>No interest shall accrue under this paragraph after the date on which the Secretary provides notice to the individual of a preliminary award recommendation.</text></subparagraph><subparagraph id="idDC214238685B4BE8B6CA065A71CE2560"><enum>(C)</enum><header>Applicable date</header><text>For purposes of this paragraph, the applicable date is the date that is 12 months after the first date on which—</text><clause id="idFDA8606820274FFCA8F3B8C1A4738F1C"><enum>(i)</enum><text>all of the proceeds resulting from actions subject to the award recommendation have been collected, and</text></clause><clause id="id8DC39A68723C4B21B6B4BC5DF6E8FA0E"><enum>(ii)</enum><text>either—</text><subclause id="id3AC6C200AADA4B9499A565667BD1F201"><enum>(I)</enum><text>the statutory period for filing a claim or suit for refund has expired, or</text></subclause><subclause id="idB03B9BDB2FE84E38827BE33E27784CAA"><enum>(II)</enum><text>the taxpayers subject to the actions and the Secretary have agreed with finality to the tax or other liabilities for the periods at issue, and either the taxpayers have waived the right to file a claim or suit for refund or any claim or suit for refund has been resolved.</text></subclause></clause></subparagraph></paragraph><after-quoted-block>.</after-quoted-block></quoted-block></subsection><subsection commented="no" display-inline="no-display-inline" id="idAEFF495DEC874F0F9D3953D0140ECDA9"><enum>(b)</enum><header>Effective date</header><paragraph commented="no" display-inline="no-display-inline" id="id005C519AE0B2470AB8F6EA144D6C786E"><enum>(1)</enum><header>In general</header><text>The amendments made by this section shall take effect 180 days after the date of the enactment of this Act.</text></paragraph><paragraph commented="no" display-inline="no-display-inline" id="idBD69CAD6C3294AE98954EC6135DF4AB7"><enum>(2)</enum><header>Special rule</header><text>If, as of the date described in paragraph (1)—</text><subparagraph commented="no" display-inline="no-display-inline" id="idCFB3274F36CE457E969C483AEAAAFE83"><enum>(A)</enum><text>the Secretary has not provided notice to the individual of a preliminary award recommendation as described in paragraph (7)(A) of <external-xref legal-doc="usc" parsable-cite="usc/26/7623">section 7623(b)</external-xref> of the Internal Revenue Code of 1986, as added by this Act, and</text></subparagraph><subparagraph commented="no" display-inline="no-display-inline" id="idB0DB3A1B5B9649C4A12B03CBC99713AD"><enum>(B)</enum><text>the applicable date provided in paragraph (7)(C) of such section, as so added, has passed,</text></subparagraph><continuation-text continuation-text-level="paragraph">the applicable date for purposes of such paragraph (7)(C) is the date that is 12 months after the date described in paragraph (1).</continuation-text></paragraph></subsection></section><section id="idBBB3CAED21014C8E846106C572CD9B72"><enum>7.</enum><header>Correction regarding deductions for attorney's fees</header><subsection id="id26B3EDAF9C2F4B7890BF86571A35D7AF"><enum>(a)</enum><header>In general</header><text><external-xref legal-doc="usc" parsable-cite="usc/26/62">Section 62(a)(21)(A)(i)</external-xref> of the Internal Revenue Code of 1986 is amended by striking <quote>7623(b)</quote> and inserting <quote>7623</quote>.</text></subsection><subsection id="id8E042F6AA97E4C66A578CA2B6191EBE9"><enum>(b)</enum><header>Effective date</header><text>The amendment made by this section shall apply to taxable years ending after the date of the enactment of this Act.</text></subsection></section></legis-body></bill>

