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IRS roundup: May 29 – June 8, 2026

by Kai M. Fenty | Jun 15, 2026 | Appellate Courts, Court Procedure Matters, IRS Guidance, Significant Court Decision, Tax Reform, Trial Courts

Check out our summary of significant Internal Revenue Service (IRS) guidance and relevant tax matters for May 29, 2026 – June 8, 2026.

May 29, 2026: The US Department of the Treasury and the IRS issued additional guidance on the applicability dates of proposed regulations under Internal Revenue Code (IRC) § 892, which governs the tax exemption for certain income earned by foreign governments and sovereign wealth funds from passive US investments. The guidance responds to stakeholder comments by providing both grandfathering protection for existing investments and transitional relief before the proposed rules become final.

Under the guidance, existing foreign government interests generally would not become subject to the final regulations, and affected investors will have at least 90 days after publication of the final regulations or until the beginning of the first taxable year following publication to come into compliance. The Treasury and the IRS stated that the changes are intended to provide certainty for current investments, preserve established market practices, and support continued sovereign investment in the United States.

June 1, 2026: The Treasury and the IRS issued proposed regulations that would increase the user fee for obtaining an estate tax closing letter from $56 to $76. The agencies explained that a recent cost study determined the full cost of processing and issuing these letters exceeds the current fee and that the increase is intended to satisfy federal user-fee requirements that services provided to specific taxpayers be self-sustaining.

The proposed regulations provide that the increased fee would apply to requests received 30 days after publication of the final regulations. The Treasury and the IRS estimate that the higher fee reflects updated labor, quality review, and overhead costs associated with processing approximately 8,000 estate tax closing letter requests annually.

June 3, 2026: Following US President Donald Trump’s executive order creating a new Schedule Policy/Career employment category, the IRS and IRS Office of Chief Counsel identified several career positions that may be reclassified, including senior advisers, program managers, human resources specialists, attorney-advisers, and senior legal counsel positions. Employees placed in the new category will lose certain long-standing civil service protections and could be removed more easily than traditional career employees.

The Trump administration stated that the changes are intended to increase accountability and facilitate the removal of employees for poor performance or misconduct. Critics, including unions and former IRS officials, contend that the reclassification could undermine workforce stability, make recruitment more difficult, and increase concerns about political influence over tax administration and enforcement.

June 4, 2026: The Treasury and the IRS indicated that guidance on clean energy tax credit restrictions enacted by the One Big Beautiful Bill Act is expected in the third quarter of 2026. The guidance is expected to address the new prohibited foreign entity rules, which limit eligibility for certain clean energy credits when projects rely on financing, supplies, components, or contractual relationships involving entities connected to designated foreign countries such as China and Russia.

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Supreme Court Denies Certiorari in Whirlpool

by Kevin Spencer and McDermott Will & Schulte | Nov 21, 2022 | Appellate Courts, Court Procedure Matters, IRS Guidance, Trial Courts

On November 21, 2022, the Supreme Court of the United States denied certiorari in Whirlpool Financial Corp., et al., Petitioners v. Commissioner of Internal Revenue, No. 22-9. This means that the US Court of Appeals for the Sixth Circuit’s decision remains in effect and is binding on the taxpayers who reside in that circuit. However, for taxpayers in other circuits, the Sixth Circuit’s decision is only persuasive authority and not binding precedent. Thus, it remains to be seen whether taxpayers in other jurisdictions will challenge the result reached in Whirlpool, and if they do, how appellate courts outside the Sixth Circuit will rule.

Prior coverage of this case can be found below:

Whirlpool Update: New Filings and Distribution for Supreme Court Conference

by Lowell D. Yoder, David G. Noren, Elizabeth C. Lu and Jonathan D. Lockhart | Nov 4, 2022 | Appellate Courts, Court Procedure Matters, Trial Courts

On November 2, 2022, the Supreme Court of the United States announced that the case of Whirlpool Financial Corp., et al., Petitioners v. Commissioner of Internal Revenue, No. 22-9, has been distributed for consideration at its upcoming conference on November 18, 2022. Meaning, we should have an answer in the next few weeks as to whether the Supreme Court will hear the case.

The Supreme Court’s distribution for the conference follows the government’s brief, submitted on October 19, 2022, in opposition to Whirlpool’s petition for a writ of certiorari.

In its brief, the government summarizes its position as follows:

Petitioners contend (Pet. 17) that 26 U.S.C. 954(d)(2) is “conditioned on the promulgation of regulations” by the Treasury Department and thus may not “be enforced without regard to such regulations.” But as the court of appeals correctly held, Section 954(d)(2)’s text itself establishes clear “conditions” and “consequences,” Pet. App. 12a, and when applied to this case, that text “mandate[s]” that the income at issue is FBCSI, id. at 18a. The phrase “‘under regulations prescribed by the Secretary’” delegates to the Treasury Department authority to “implement the statute’s commands,” but not to “vary from them,” ibid., so the court permissibly declined to articulate a separate rationale in this case based on the implementing regulations. Petitioners concede (Pet. 33) that the decision below does not conflict with that of any other court of appeals. Nor does it conflict with this Court’s precedent because petitioners’ cited cases involved meaningfully distinct statutory schemes. And resolving the question presented lacks practical importance because the Treasury Department’s former regulations would dictate the same result as the statutory text, and the revisions that were made to the regulations in 2008 removed any potential doubt about that result. This Court’s review is unwarranted.

The government’s position is an interesting one. It seems to accept that a court is free to ignore regulations relied on by the public if the court determines that the government’s position is supported by the statutory language and the statute is not entirely conditioned on the operation of a regulation. Additionally, the government believes here that US Congress did not entirely condition operation of Internal Revenue Code (Code) Section 954(d)(2) on regulations.

Perhaps sensing the difficulty in prevailing on this argument, the government (similar to what it did in the rehearing proceedings in the US Court of Appeals for the Sixth Circuit) seeks to limit Whirlpool to the specific statute at issue. However, this ignores the fact that the same or substantially the same language is used in other Code provisions, making it difficult to limit the government’s argument to Code Section 954(d)(2).

In another attempt to discourage review, the government essentially argues that the substantive issue is an issue of first-and-last impression because the regulations at issue were amended for tax years subsequent to Whirlpool’s. Again, this ignores the fact that Whirlpool involves important administrative law issues that will remain regardless of the amendment.

Finally, [...]

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Amici Support Whirlpool’s Request for Supreme Court Review

by Robert Levin and McDermott Will & Schulte | Aug 8, 2022 | Appellate Courts, Court Procedure Matters, Trial Courts

As we previously discussed, toward the end of June Whirlpool Financial Corporation & Consolidated Subsidiaries and Whirlpool International Holdings S.a.r.l. & Consolidated Subsidiaries (collectively, Whirlpool) asked the Supreme Court of the United States to review the US Federal Circuit Court of Appeals for the Sixth Circuit’s decision that income earned by a Luxembourg controlled foreign corporation was foreign base company sales income (FBCSI) under the branch rule of Internal Revenue Code (IRC) section 954(d)(2) and taxable to the corporation as “subpart F income.” (For an excellent dissection of the Sixth Circuit’s decision, please see our colleagues’ article, “Implications of the Sixth Circuit’s Whirlpool Opinion.”)

Several amici recently filed briefs with the Supreme Court supporting Whirlpool. The docket sheet for the case, titled Whirlpool Financial Corp. et al., Petitioners, v. Commissioner of Internal Revenue, No. 22-9, is available here.

On August 3, 2022, the National Association of Manufacturers (NAM) submitted its brief, setting forth two arguments:

First, the Sixth Circuit applied an entirely novel interpretation—not found anywhere in the Code or Treasury regulations and not advanced by the agency nor adopted by the Tax Court—that conflicts with decades-old regulations promulgated contemporaneously with the underlying statute and at Congress’s express command in section 954(d)(2) itself.

Second, reliance on validly promulgated regulations—and therefore regulated parties’ ability to comply with the laws—is the bedrock of administrative law. If taxpayers must follow regulations or face the prospect of civil (and perhaps even criminal) penalties, then so too must the government be held to its binding, published actions.

On August 4, 2022, PricewaterhouseCoopers LLP, Deloitte Tax LLP and KPMG LLP (collectively, Accounting Firms) joined forces to bring the “exceptionally important” nature of the case to the Supreme Court’s attention. (The brief states that Ernst & Young LLP did not participate as amicus curiae because it is Whirlpool’s financial statement auditor.) In their brief, the Accounting Firms assert:

The Sixth Circuit’s disregard of the regulations in its attempt to interpret the requirements of the statute creates substantial uncertainty with respect to the efforts to comply with the Internal Revenue Code and the Amici who advise them. Review by this Court is necessary to reassure taxpayers that when Congress expressly conditions tax provisions on the issuance of Treasury Regulations, courts will take those regulations into account in interpreting the requirements of the Internal Revenue Code.

Also on August 4, a third brief was submitted by the Silicon Valley Tax Directors Group, the National Foreign Trade Council, the Information Technology Industry Council and TechNet. These amici assert:

This Court should alleviate [the] disparate treatment among taxpayers—or even the same taxpayer in different federal courts—by recognizing the importance of the clear statutory command that branch income “shall constitute” FBCSI only “under regulations prescribed by the Secretary [of the Treasury].” 26 U.S.C. § 954(d)(2). Restoring taxpayer reliance on those regulations is crucial for preserving Congress’s desired uniform scheme and [...]

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Sixth Circuit Denies Proceeds Regulation Rehearing Request, Sets Up a Circuit Split

by Sarah M. Raben and McDermott Will & Schulte | Jul 13, 2022 | Appellate Courts, Court Procedure Matters, IRS Guidance, Trial Courts

The US Court of Appeals for the Sixth Circuit recently denied a taxpayer’s request for a rehearing en banc in Oakbrook Land Holdings, LLC v. Commissioner, No. 20-2117, leaving a highly contested conservation easement regulation in place and setting up a split between the Sixth and Eleventh Circuits.

In Oakbrook, the taxpayer argued that Treas. Reg. § 1.170A-14(g)(6)(ii), known as the “proceeds regulation,” was invalid because it did not satisfy the Administrative Procedure Act’s (APA) notice-and-comment rulemaking procedures. The regulation addresses how to allocate proceeds between donors and donees if an easement is judicially extinguished and the property is sold. In May 2020, the US Tax Court held that the regulation was “procedurally and substantively valid” under the APA. The Sixth Circuit agreed with the Tax Court, upholding the regulation.

The Sixth Circuit’s order issued July 6, 2022, indicated that neither the judges on the original panel nor any other judge on the full court requested a vote for a suggested rehearing. Last year, however, the Eleventh Circuit reached the opposite conclusion in Hewitt v. Commissioner, finding that the same regulation was invalid because it violated the APA. Thus, there is a clear circuit split on the issue.

Practice Point: The government did not seek a review of the Hewitt decision from the Supreme Court of the United States, so that ruling stands in the Eleventh Circuit. It remains to be seen whether the taxpayer in Oakbrook files a petition for a writ of certiorari to the Supreme Court. With a split between the Sixth and Eleventh Circuits, it is possible this conservation easement battle could be headed to the Supreme Court to determine the fate of the proceeds regulation.

Will the Supreme Court Rule on Whirlpool’s Subpart F Income Case?

by Kevin Spencer and McDermott Will & Schulte | Jul 6, 2022 | Appellate Courts, Court Procedure Matters, IRS Guidance, Trial Courts

A war is currently waging in the tax world over when courts should give deference to the US Department of the Treasury’s regulations. (We have written extensively on this subject here and here.) However, another potential war looms: Can courts disregard validly promulgated regulations relied on by taxpayers in favor of their own statutory interpretation? This question lies at the heart of the Whirlpool case.

On June 30, 2022, Whirlpool asked the Supreme Court of the United States to review the US Federal Circuit Court of Appeals for the Sixth Circuit’s decision that income earned by a Luxembourg controlled foreign corporation was foreign base company sales income (FBCSI) under the branch rule of Internal Revenue Code (IRC) section 954(d)(2) and taxable to the corporation as “subpart F income.”

During the trial phase of the litigation, the US Tax Court held that the branch income regulations (and the regulatory manufacturing exception therein), were validly promulgated and interpreted the regulations in a manner favorable to the Internal Revenue Service (IRS). (See 154 T.C. 142 (2020).)

Whirlpool appealed, and the Sixth Circuit affirmed in a 2-1 decision. (See 19 F.4th 944 (6th Cir. 2021).) Unlike the Tax Court, which reached its decision by harmoniously reading the statute and regulations, the Sixth Circuit ruled in favor of the IRS based solely on its interpretation of IRC section 954(d)(2), ignoring the relevant regulations and how the IRS and other courts have interpreted them. For an excellent dissection of the Court’s ruling, please see our colleagues’ article, “Implications of the Sixth Circuit’s Whirlpool Opinion.”

Whirlpool sought rehearing and rehearing en banc in the Sixth Circuit. The National Association of Manufacturers (NAM) and the Silicon Valley Tax Directors Group also filed amicus briefs supporting Whirlpool (McDermott acted as counsel for NAM in this capacity). However, the Sixth Circuit denied Whirlpool’s request for rehearing and rehearing en banc.

Now, Whirlpool is seeking the guidance of the Supreme Court, asking “whether or in what circumstances a statute that is expressly conditioned on regulations to be promulgated by an agency may be enforced without regard to such regulations.” In seeking certiorari, Whirlpool argues:

The divided Sixth Circuit below held that a tax statute explicitly conditioned on regulations to be promulgated by the Secretary of the Treasury delineating the income subject to taxation could be enforced without consulting the Secretary’s regulations, even though the regulations bound the Internal Revenue Service (“IRS”) and the IRS actually imposed tax based on the regulations. That decision directly contravenes [the Supreme] Court’s precedents and settled administrative-law principles. It upsets the reliance interests of taxpayers who, for more than 50 years, have relied on the regulations in structuring their operations. And this issue is outcome-determinative because — as the dissent below concluded — the income at issue is not taxable under a proper reading of the regulations (emphasis in original).

Whirlpool further argues that left unchecked, the Sixth Circuit’s decision [...]

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Sixth Circuit Sets Limits on the Application of the Substance-Over-Form Doctrine

by David Sherwood and John Robert | Feb 21, 2017 | Appellate Courts, Uncategorized

The judicial substance-over-form doctrine provides the IRS with the ability to set aside carefully orchestrated tax planning arrangements to treat a transaction consistent with its substance. However, the doctrine does not give the Service carte blanche to deny tax benefits. In Summa Holdings, Inc. v. Commissioner, No. 16-1712 (available here), the Sixth Circuit overturned the Tax Court and declined to apply the substance-over-form doctrine when faced with taxpayers who, “to [their] good fortune, had the time and patience (and money) to understand how a complex set of tax provisions could lower [their] taxes” and “complied in full with the printed and accessible words of the tax laws.”

Summa Holdings involved a closely held corporation (Summa Holdings, Inc.) that supercharged the tax benefits provided by paying commissions to an interest charge domestic international sales corporation (IC-DISC) by having the IC-DISC owned by two Roth IRAs. While the dividends paid by the IC-DISC were taxable upon receipt, the dividend amounts (totaling $6 million over 7 years) were vastly larger than the annual contribution limits placed on Roth IRAs. For unfathomable reasons, the IRS did not challenge the $3,000 price that the Roth IRAs paid for the IC-DISC stock. Instead, the IRS asserted that that the substance of the arrangement was that the corporation paid dividends to its shareholders and the shareholders made excess contributions to the Roth IRAs.

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Sixth Circuit Defines ‘Corporation’ for Purposes of Overpayment Interest

by Roger J. Jones | Aug 22, 2016 | Appellate Courts, Settlements, Tax Refunds, Uncategorized

The US Court of Appeals for the Sixth Circuit recently held in U.S. v. Detroit Medical Center that a nonprofit entity incorporated under state law falls within the definition of a ‘corporation’ for purposes of determining the interest rate applicable to tax refunds. The case is worth reading for its plain meaning analysis as well as its reliance on prior case law dating back hundreds of years.

In Detroit Medical, a not-for-profit corporation overpaid its taxes, entitling it to a refund plus interest. Under the Internal Revenue Code (Code), ‘corporations’ receive lower interest rates on refund than other taxpayers. The taxpayer claimed that, as a not-for-profit corporation, it should not be treated as a ‘corporation’ and thus was eligible for the higher interest rate resulting in an extra $9.1 million in refunds. The Sixth Circuit found nothing in the relevant statute that excludes a not-for-profit corporation from the definition of “corporation.” In reaching its holding, the court relied on various statutory construction principles, including: (1) in the absence of any statutory definition to the contrary, courts presume that Congress adopts the customary meaning of the terms it uses; (2) the word “includes” is a term of inclusion, not exclusion; (3) dictionary definitions (both old and new) are appropriate tools to determine the meaning of a word used in the Code; and (4) when Congress uses particular language in one section of a statute but omits it in another part of the same Act, the general rule is that Congress acted intentionally and purposely in the disparate inclusion or exclusion.

As further support for its plain meaning analysis, the Sixth Circuit relied primarily on an 1819 opinion by Chief Justice Marshal in Dartmouth College that permitted charitable organizations to be treated as corporations. The court further noted that in 1612, Sir Edward Coke wrote in The Case of Sutton’s Hospital that a charitable hospital and school founded at the London Charterhouse was as valid a corporation as any other because it possessed all the characteristics that are of the essence of a corporation. Finally, the court cited to commentaries by William Blackstone from 1753 that charitable corporations are one of three basic kinds of corporations.

The Sixth Circuit’s approach of applying a strict plain meaning analysis is consistent with its approach in prior tax cases, including its interpretation of Code section 956 in The Limited and Code section 1256 in Wright Additionally, the opinion highlights the importance in tax litigation of not limiting one’s argument to just the most recent cases and searching for useful authority outside the tax context. In a recent opinion involving the interpretation of Code section 6662, the Tax Court in Rand employed a similar approach by applying the rule of lenity and relying on an 1820 Supreme Court opinion dealing with homicide at sea.

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