Bialer v. Commissioner, T.C. Memo. 2026-110, October 29, 2026

In Bialer v. Commissioner, T.C. Memo. 2026-110 (Docket No. 6983-19W, filed October 29, 2026), the United States Tax Court granted summary judgment in favor of the Commissioner of Internal Revenue, sustaining the IRS Whistleblower Office’s (WBO) final determination to deny a mandatory whistleblower award under Internal Revenue Code (I.R.C.) § 7623(b). Opinion author Judge Gustafson reexamined two recurring statutory issues in tax whistleblower litigation: first, whether an IRS operating division (such as Large Business & International, or LB&I) possesses delegated authority to issue a reviewable award determination; and second, whether the IRS “proceeded based on” a whistleblower’s submission when the examining audit team relied instead on independent information provided by another informant and a public congressional report.

For tax professionals representing informants before the WBO, Bialer provides crucial guidance on the strict evidentiary standards required under Treas. Reg. § 301.7623-1(c)(1), the non-reviewability of internal audit referral decisions under I.R.C. § 6201, and the narrow scope of record supplementation under Van Bemmelen v. Commissioner.

Factual Matrix and Administrative Background

The petitioner, Arthur M. Bialer, was an experienced financial sector professional who had previously submitted a successful whistleblower claim (“Claim S”) in 2006 concerning total return swap (TRS) transactions used by his former employer (“Institution 2”) to avoid U.S. foreign dividend withholding taxes under I.R.C. §§ 1441 and 1442. Following a Special Agreement under I.R.C. § 7623 executed with LB&I, Mr. Bialer received a substantial statutory award in July 2015 based on collected deficiencies.

In May 2007, while Claim S was pending, Mr. Bialer and his legal counsel conducted a pre-filing presentation with WBO Director Stephen Whitlock and an LB&I subject matter expert (SME). During this meeting, Mr. Bialer discussed TRS dividend yield enhancement schemes and briefly identified a new entity (“Target”). On September 5, 2007, Mr. Bialer filed Form 211, “Application for Award for Original Information” (“Claim T”), requesting an award for disclosures concerning Target and related entities. In support of Claim T, Mr. Bialer submitted indicative term sheets for TRS transactions executed in 1997 and 1999, interview schedules from 2006, and correspondence with his counsel and WBO staff.

Unbeknownst to Mr. Bialer, parallel developments were underway:

Prior Disclosure by WB1 (June 2005): An unrelated whistleblower (“WB1”) had independently disclosed dividend tax abuse at “Institution 1” to the IRS in June 2005 and filed Form 211 in July 2005. In late 2006, WB1 began assisting investigative journalists, leading to a front-page Wall Street Journal article in September 2007. In October 2007, WB1 met with members of the U.S. Senate Permanent Subcommittee on Investigations (PSI) and furnished extensive internal documents.
PSI Investigation and Public Report (2007–2008): In September 2007, the PSI formally commenced an inquiry into offshore dividend tax evasion, issuing over a dozen subpoenas and examining hundreds of thousands of pages of records. In September 2008, the PSI published a 77-page public report titled Dividend Tax Abuse: How Offshore Entities Dodge Taxes on U.S. Stock Dividends, which featured six detailed case histories, including Target’s use of “Consolidated Cayman Stock Borrowing” (CCSB) to avoid approximately $300 million in U.S. withholding taxes.
WB1 Second Filing (October 2008): On October 2, 2008, WB1 submitted a second Form 211 package containing taxpayer-specific records covering all institutions highlighted in the PSI Report, including Target.

In December 2008, LB&I forwarded the PSI Report and WB1’s taxpayer-specific documentation to IRS Field Team 1114. Field Team 1114 utilized the PSI Report and WB1 data to open an examination of Target’s 2005 Form 1042 (withholding tax return) in November 2010. Target subsequently agreed to the audit findings and paid the assessed deficiency plus interest in January 2012.

In contrast, Mr. Bialer’s Claim T was provided to an LB&I SME in October 2007 but was not transmitted to Field Team 1114 until January 22, 2010—more than a year after the audit team had received WB1’s records and the PSI Report. Upon review, Field Team 1114 concluded that Mr. Bialer’s submission provided no assistance. On December 16, 2013, the audit team executed Form 11369, “Confidential Evaluation Report on Claim for Award,” advising the WBO that:

“The information provided by the Whistleblower (‘WB’) was already under consideration and provided no additional value. . . . It is my opinion that this claim is poorly developed, lacks specifics, and is not particularly relevant as to the financial transactions examined by the Service during the current audit cycle. The Whistleblower provided several documents that address financial trades that occurred in 1997 and 1999. These years are closed and outside the statute of limitations. . . . Within the brief discussion by the WB addressing these trades there are gaps and inconsistencies . . . .”

On April 5, 2019, the WBO issued a Final Determination Letter denying Claim T under I.R.C. § 7623(b). The WBO explained that:

“The claim has been denied because the IRS identified the issue(s) prior to receipt/review of your information and your information did not substantially contribute to the actions taken by the IRS. The issue(s) you identified were already in the IRS audit plan for the taxpayer, and there were no changes in the IRS approach to the issue(s) after review of the information you provided.”

Mr. Bialer filed a timely petition for review with the United States Tax Court on May 1, 2019.

Taxpayer Request for Relief and Core Arguments

In his Tax Court petition and subsequent motions, Mr. Bialer sought judicial reversal of the WBO’s denial and requested mandatory award relief under I.R.C. § 7623(b)(1). In support of his position, the taxpayer raised three distinct factual and legal arguments:

Prior Disclosure / Proximate Cause: Mr. Bialer asserted that he was the first individual to bring Target’s withholding tax abuses to the attention of the Secretary of the Treasury prior to anyone else. He posited that his May 2007 pre-filing presentation and September 2007 Form 211 submission were conveyed by IRS personnel to the Senate PSI, making Claim T the proximate cause of the PSI Report and the IRS’s multi-million-dollar recovery.
Delegated Authority and Early Denial: Mr. Bialer contended that the WBO’s April 5, 2019 letter was not the true “final determination.” Instead, he argued that when the WBO assigned Claim T to LB&I Financial Services pursuant to Tax Relief and Health Care Act of 2006 (TRHCA) § 406(b)(1)(B), Financial Services became the “appropriate office” acting as the delegate of the Secretary. He pointed to an undated internal discovery spreadsheet entry (which he asserted was created by June 2008) stating that his claims were “speculative” and “will not be pursued.” Mr. Bialer asserted that this internal entry constituted a final, negative administrative determination regarding an award, and that LB&I abused its discretion and violated his constitutional due process rights by failing to provide prompt notice.
Motion to Supplement the Administrative Record: Mr. Bialer filed three separate motions (Docs. 162, 164, 167) seeking to supplement the administrative record under Van Bemmelen v. Commissioner with internal LB&I emails, spreadsheets, case-tracking logs, and discovery materials to prove LB&I’s internal decision-making timeline.

Judicial Analysis of Statutory Framework and Administrative Law

Judge Gustafson systematically addressed each legal argument, establishing clear boundaries regarding statutory delegation, administrative determinations, and judicial standard of review.

Jurisdiction, Scope, and Standard of Review

Under I.R.C. § 7623(b)(4), the Tax Court possesses specialized jurisdiction to review WBO award determinations. Citing D.C. Circuit and Tax Court precedent, the court confirmed that:

Scope of Review: Review is strictly confined to the certified administrative record developed by the WBO (Kasper v. Commissioner, 150 T.C. 8 (2018); Estate of Insinga v. Commissioner, 149 F.4th 709 (D.C. Cir. 2025)).
Standard of Review: The court evaluates WBO determinations under the abuse of discretion standard, determining whether the agency action was “arbitrary, capricious, an abuse of discretion, or otherwise not in accordance with law” pursuant to 5 U.S.C. § 706(2)(A) (Kasper, 150 T.C. at 21–23; Trongone v. Commissioner, 181 F.4th 85 (D.C. Cir. 2026)).

Denial of Motions to Supplement the Administrative Record

Applying Van Bemmelen v. Commissioner, 155 T.C. 64 (2020), the court highlighted the strong presumption of regularity attached to the agency’s record designation. To supplement the record with excluded evidence, a whistleblower must make a substantial showing with clear evidence that documents were before the agency and improperly omitted. To introduce extra-record evidence, the whistleblower must show serious questions regarding procedural validity under recognized exceptions (e.g., deliberate exclusion of adverse material, necessity for background context, or failure to explain agency action).

Judge Gustafson denied Mr. Bialer’s motions to supplement, ruling that internal LB&I field notes and spreadsheets were completely immaterial to the legal issues before the court:

“That contention rests on the mistaken premise that LB&I had authority to make the award determination; but . . . only the WBO had the authority and occasion to make an award determination reviewable under section 7623(b)(4). Even if Mr. Bialer were correct in his interpretation of the documents, they would show at most that LB&I personnel decided not to use his information to audit Target—i.e., an audit decision that we have no authority to review.”

Exclusive Statutory Authority of the Whistleblower Office

The court rejected Mr. Bialer’s argument that LB&I Financial Services acted as the “Secretary’s delegate” with authority to issue an award determination. Analyzing the plain language of TRHCA § 406(b) and I.R.C. § 7623(b), Judge Gustafson distinguished between investigative assignment and award determination:

“TRHCA § 406(b)(1)(B) authorizes the WBO, when it receives a claim with information, to ‘either investigate the matter itself or assign it to the appropriate Internal Revenue Service office’ . . . . TRHCA § 406(b)(1)(B) does not authorize the WBO to assign away its functions other than investigation.”

“Section 7623(b) identifies ‘the Whistleblower Office’ as the exclusive actor in connection with ‘determinations’ . . . . Thus, under this statute, the subject of a ‘determination’ is the amount of an award, and the maker of that determination is ‘the Whistleblower Office.’ . . . Under the law, Financial Services had no power or occasion to deny Mr. Bialer’s whistleblower award claim.”

Non-Reviewability of Internal Audit Decisions

The court reiterated the settled constitutional and statutory doctrine that internal IRS audit decisions are committed to the unfettered discretion of the executive branch under I.R.C. §§ 6201 and 6301 (Kennedy v. Commissioner, 142 F.4th 769 (D.C. Cir. 2024); Lacey v. Commissioner, 153 T.C. 146 (2019)).

Judge Gustafson noted that an uncommunicated internal note by audit personnel expressing a preference not to pursue a lead is an unreviewable audit decision, not an administrative determination:

“In a whistleblower case, we do not review an audit team’s decision whether to audit. The Tax Court has consistently held that it has no power to order the IRS to conduct an audit nor to order the IRS to explain why it does not conduct an audit . . . . The decision to audit is committed to ‘the Secretary’s unfettered discretion.’”

Application of Statutory Standards to the Factual Record

Having established the governing legal framework, the Tax Court applied I.R.C. § 7623(b)(1) to the administrative record. Section 7623(b)(1) contains two mandatory prerequisites for an award:

The IRS must proceed with an administrative or judicial action based on the whistleblower’s information; and
Tax proceeds must be collected as a result of that action.

The administrative record conclusively demonstrated that the IRS’s audit of Target was initiated and conducted based on WB1’s 2005 disclosures and the September 2008 PSI Report, both of which were in Field Team 1114’s hands in December 2008. In contrast, Mr. Bialer’s Claim T was not transmitted to Field Team 1114 until January 2010.

Judge Gustafson addressed Mr. Bialer’s specific factual assertions as follows:

Absence of Proximate Cause to PSI Report: Mr. Bialer’s theory that his Claim T prompted the Senate PSI investigation was empirically disproved by the timeline. WB1 disclosed the tax abuses to the IRS in June 2005, engaged with the Wall Street Journal in 2006, and provided extensive records directly to PSI staff in October 2007. Mr. Bialer had no contact with PSI.
Inadequacy of Claim T Content: Claim T relied on outdated 1997 and 1999 transaction terms sheets for closed tax years beyond the statute of limitations. As Field Team 1114 documented, Claim T lacked actionable specifics, ledger entries, or current employee identities.
Unsupported Allegations Regarding CCSB and FwTC: While Mr. Bialer asserted he was the first to report CCSB and FwTC schemes, the record showed that CCSB was fully disclosed in the PSI Report (which the audit team received in December 2008 prior to seeing Claim T). Furthermore, the record contained no reference to FwTC in Claim T regarding Target; the only mention occurred in a pre-filing chart referencing Mr. Bialer’s former employer (Institution 2).
Rejection of “First to File” Rule: Judge Gustafson underscored that I.R.C. § 7623(b) is not a race-to-the-file regime, but a causation regime:

“What section 7623(b) requires for a whistleblower award is not that he be the first to report but that the Secretary take ‘action . . . based on information brought’ by the whistleblower. Even if Mr. Bialer had shown . . . that he was the first to disclose Target’s tax abuses to the WBO, the critical fact, which remains unchallenged, is this: In December 2008 the audit team had not received Mr. Bialer’s Claim T but did receive the PSI Report . . . and based on that information (not Mr. Bialer’s) the IRS took action and collected tax proceeds.”

Conclusions and Practical Key Takeaways for Tax Practitioners

The Tax Court concluded that the administrative record fully supported the WBO’s final determination letter of April 5, 2019. Finding no abuse of discretion, the court denied Mr. Bialer’s motions to supplement the record and granted the Commissioner’s motion for summary judgment.

Key Takeaways for Tax Professionals (CPAs and EAs)

Substantive Specificity is Mandatory: Under Treas. Reg. § 301.7623-1(c)(1), submissions relying on outdated transactions, speculative generalities, or news articles fail the “specific and credible information” threshold. Form 211 submissions must include detailed transaction structures, current tax years within open statutes of limitation, accounting entries, and specific taxpayer identifiers.
Causation, Not Priority, Controls: Securing a whistleblower award under I.R.C. § 7623(b)(1) requires proving that the examining audit team actually utilized the whistleblower’s information in initiating or expanding an audit. Being “first to bring an issue to light” is legally insufficient if the IRS proceeds based on independent sources (such as congressional reports or parallel informant filings).
WBO Retains Sole Award Determination Authority: Operational divisions (LB&I, SB/SE) conduct audits and prepare Form 11369 evaluations, but only the WBO has statutory authority under I.R.C. § 7623(b) and Treas. Reg. § 301.7623-3(c) to issue a reviewable determination. Internal division notes or referral decisions do not constitute appealable determinations.
Record Supplementation Faces High Judicial Hurdles: Tax Court review under I.R.C. § 7623(b)(4) is strictly limited to the administrative record. Courts will enforce the strong presumption of regularity (Van Bemmelen) and will reject requests to supplement the record with internal IRS communications that do not impact the WBO’s final decision.

Prepared with assistance from Gemini Notebook.