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<bill bill-stage="Introduced-in-Senate" dms-id="A1" public-private="public" slc-id="S1-MCG26671-W89-M8-8D9"><metadata xmlns:dc="http://purl.org/dc/elements/1.1/">
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<dc:title>119 S5111 IS: Strengthening EFIN Confirmation for User Reliability and Electronic (SECURE) Tax Filing Act</dc:title>
<dc:publisher>U.S. Senate</dc:publisher>
<dc:date>2026-07-23</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. 5111</legis-num><current-chamber>IN THE SENATE OF THE UNITED STATES</current-chamber><action><action-date date="20260723">July 23, 2026</action-date><action-desc><sponsor name-id="S385">Ms. Cortez Masto</sponsor> (for herself and <cosponsor name-id="S396">Mrs. Blackburn</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 require validation of electronic filing identification numbers used to electronically file tax returns and other documents.</official-title></form><legis-body><section id="idcb774def3d8f409bb038462507eca578" section-type="section-one"><enum>1.</enum><header>Short title</header><text display-inline="no-display-inline">This Act may be cited as the <quote><short-title>Strengthening EFIN Confirmation for User Reliability and Electronic (SECURE) Tax Filing Act</short-title></quote>.</text></section><section id="id7d88726af5b74189bffd59d5ea8fc0ef" section-type="subsequent-section"><enum>2.</enum><header>Validation of electronic filing identification numbers</header><subsection commented="no" display-inline="no-display-inline" id="idd993ef3ec68140abada1a8557ce3e20d"><enum>(a)</enum><header display-inline="yes-display-inline">Definitions</header><text>For purposes of this section:</text><paragraph commented="no" display-inline="no-display-inline" id="id690bdc24872545d7a97a9498f408cc8b"><enum>(1)</enum><header display-inline="yes-display-inline">EFIN or Electronic filing identification number</header><text>The term <term>EFIN</term> or <term>electronic filing identification number</term> means the unique identifier issued by the Secretary to authorize a person or entity to electronically file returns or other documents with the Secretary on behalf of taxpayers.</text></paragraph><paragraph commented="no" display-inline="no-display-inline" id="id6f7e5f7fd625449c9fc70a9122d35d2e"><enum>(2)</enum><header>Return or other document</header><text>The term <term>return or other document</term> means—</text><subparagraph commented="no" display-inline="no-display-inline" id="id5cc1eba2219c4ff4b27821593e7e7813"><enum>(A)</enum><text display-inline="yes-display-inline">any return of Federal tax, and</text></subparagraph><subparagraph commented="no" display-inline="no-display-inline" id="id74c1c3d6d3db4711913d4201304b3a99"><enum>(B)</enum><text display-inline="yes-display-inline">except as provided by the Secretary, any other document required to be filed with the Secretary under the Internal Revenue Code of 1986.</text></subparagraph></paragraph><paragraph commented="no" display-inline="no-display-inline" id="idae9a70a5686541f08d15baedfd1eaca4"><enum>(3)</enum><header>Secretary</header><text>The term <term>Secretary</term> means the Secretary of the Treasury or the Secretary's delegate.</text></paragraph></subsection><subsection id="ida85dd387ffae4c009704f2cb0edd8ca8"><enum>(b)</enum><header>Validation required</header><paragraph commented="no" display-inline="no-display-inline" id="idf99467d74a454d548d1a968a57b144d9"><enum>(1)</enum><header display-inline="yes-display-inline">In general</header><text display-inline="yes-display-inline">An EFIN may not be used to electronically file any return or other document unless the Secretary has validated, in accordance with the program established under subsection (c), that—</text><subparagraph commented="no" display-inline="no-display-inline" id="idcb399e59b9fd485e9f2a0f1eb5bb29ff"><enum>(A)</enum><text display-inline="yes-display-inline">the EFIN as active, and</text></subparagraph><subparagraph commented="no" display-inline="no-display-inline" id="id5ebfd7ea20564df4acfa38cae41141a5"><enum>(B)</enum><text>the person to whom the EFIN was issued is authorized to perform the electronic filing activity for which the EFIN is used.</text></subparagraph></paragraph><paragraph id="ide899a88666b04f3ea5e3cc978dc57f4a" commented="no"><enum>(2)</enum><header>Validation through electronic filing software</header><text>Software which enables the electronic filing of returns or other documents with the Secretary—</text><subparagraph commented="no" display-inline="no-display-inline" id="id3b6d75b5295e4fa4a2fccb98ea3f0af8"><enum>(A)</enum><text display-inline="yes-display-inline">shall require validation of an EFIN through the program established under subsection (c), and</text></subparagraph><subparagraph commented="no" display-inline="no-display-inline" id="id582a142fd31b4f709d7ecd3e65040726"><enum>(B)</enum><text display-inline="yes-display-inline">shall not permit such electronic filing unless such EFIN has been validated as provided in paragraph (1).</text></subparagraph></paragraph></subsection><subsection commented="no" display-inline="no-display-inline" id="id0bd973d72d77454bbf02b7a1722dbe58"><enum>(c)</enum><header>Validation program</header><paragraph commented="no" display-inline="no-display-inline" id="idacfffaf73b8f42d4924e5f34f2471675"><enum>(1)</enum><header display-inline="yes-display-inline">In general</header><text>Not later than 24 months after the date of the enactment of this Act, the Secretary shall establish and maintain a program for the validation of EFINs.</text></paragraph><paragraph id="idbd0ddd0552d14f6886ce9bc2da2dc2d0"><enum>(2)</enum><header>Timing and frequency of validation</header><text>The Secretary shall validate an EFIN—</text><subparagraph id="id6c5280bdb4284e3dabd44eba45bb1f64"><enum>(A)</enum><text>prior to the initial use of such EFIN for electronic filing, and</text></subparagraph><subparagraph id="id20a6405f043b490ba2936eb110dfdcbf"><enum>(B)</enum><text>at such intervals, or upon such events, as the Secretary determines appropriate, to ensure the continued validity and integrity of such EFIN.</text></subparagraph></paragraph><paragraph id="id16a0d729165e4b049c170e50cb3f6d52"><enum>(3)</enum><header>Real-time validation system</header><subparagraph id="idc8c3520d02f745f88d074f23727fc3af"><enum>(A)</enum><header>In general</header><text>The program established under this subsection shall provide a real-time system for the validation of EFINs.</text></subparagraph><subparagraph id="idf8d8cb1b0f1e403bb2b3f016ba7fc0c9"><enum>(B)</enum><header>System requirements</header><text>The system provided under subparagraph (A) shall—</text><clause id="ide601c845bbbe4159846a01db91ccf51e"><enum>(i)</enum><text>provide immediate confirmation of the validity status of an EFIN under subsection (b)(1),</text></clause><clause id="id7427fb788f1846ff96861d2924882243"><enum>(ii)</enum><text>identify whether an EFIN has been suspended, revoked, or compromised or is otherwise ineligible for the activity for which it is used, and</text></clause><clause id="id69688dca7f424083864a79d839657a3b"><enum>(iii)</enum><text>be designed to support secure, automated, and high-volume validation requests, including usage by large-scale tax preparation software systems.</text></clause></subparagraph><subparagraph id="idaeb48c67b4e643b5ab274b779857fbeb"><enum>(C)</enum><header>Access</header><text>The Secretary shall—</text><clause commented="no" display-inline="no-display-inline" id="id2e68c15002dc4347af8d97fa90edfc29"><enum>(i)</enum><text display-inline="yes-display-inline">provide access to the system in such secure and standardized form and manner as the Secretary may prescribe, and</text></clause><clause commented="no" display-inline="no-display-inline" id="id39b326f3ff234309ada39add4d1ecf82"> <enum>(ii)</enum> <text display-inline="yes-display-inline">accept a validation request only from a person authenticated and authorized in accordance with requirements prescribed by the Secretary and only with respect to an EFIN and electronic filing activity for which such person is authorized to request validation, whether on its own behalf or in connection with services provided to the person to whom the EFIN was issued.</text>
 </clause></subparagraph></paragraph><paragraph id="idabd1d95982654aeca229f632f08186ba"><enum>(4)</enum><header>Implementation plan and report</header><subparagraph id="id978bcc394ec04da990e19a7ebb4fb775"><enum>(A)</enum><header>Implementation plan</header><text>Not later than 180 days after the date of enactment of this section, the Secretary shall submit to the Committee on Finance of the Senate and the Committee on Ways and Means of the House of Representatives an implementation plan for the program established under this subsection. Such plan shall include—</text><clause id="id7ae7804ea8e64ad7a2fcb3f9092624ad"><enum>(i)</enum><text>a description of the planned design and operation of the program;</text></clause><clause id="id9152a954511545e0852ad42b7c4581a1"><enum>(ii)</enum><text>the implementation timeline, major milestones, and testing schedule;</text></clause><clause id="id506037baa068483bb0a37c445d96328a"><enum>(iii)</enum><text>the categories of persons eligible to submit validation requests and the procedures for authorizing such persons;</text></clause><clause id="idc53d0070237b48e5b88e7023486a5085" commented="no"><enum>(iv)</enum><text>the proposed performance and reliability standards and contingency procedures; and</text></clause><clause id="idab4104abb2e64532969709bdcf863d5c"><enum>(v)</enum><text>a description of the administrative, technical, and physical safeguards to prevent unauthorized discovery, enumeration, testing, or bulk verification of EFINs.</text></clause></subparagraph><subparagraph id="id32fe229657a84fed95b4a6a9525627b5"><enum>(B)</enum><header>Post-implementation report</header><text>Not later than 2 years after the date on which the program under paragraph (1) is established, the Secretary shall submit to the Committee on Finance of the Senate and the Committee on Ways and Means of the House of Representatives a report on the implementation and operation of the program. Such report shall include—</text><clause id="id8735b66a4c8d4e76968f768c28a3c7b0"><enum>(i)</enum><text>the performance of the program, including system availability, response times, and peak-volume performance;</text></clause><clause id="id88f8db0ef3644d87b8e3734c512cf641"><enum>(ii)</enum><text>the number, duration, and effect on electronic filing of any material service disruptions;</text></clause><clause id="ide86af97601674fbdaeccdd27191d3de8"><enum>(iii)</enum><text>the aggregate number of validation requests and the aggregate number of affirmative, negative, and unable-to-validate responses;</text></clause><clause id="id3a468eac54884d77bb1151266a70b17c"><enum>(iv)</enum><text>the nature and extent of any use of contingency procedures;</text></clause><clause id="idefcd9c83bc47448db7eb6c5dd68130c8"><enum>(v)</enum><text>any material deviation from the implementation plan submitted under subparagraph (A), and the actions taken or planned to address such deviation; and</text></clause><clause id="id8cfd490618ac4036a656aa8c682297ba"><enum>(vi)</enum><text>any recommendations for administrative or legislative changes.</text></clause></subparagraph></paragraph></subsection></section></legis-body></bill>

