On May 12, 2025, House Republicans unveiled a comprehensive 389-page package of tax provisions, setting the stage for a significant tax bill to be debated in the coming weeks. Dubbed the “One Big Beautiful Bill,” this proposal aims to extend and modify many key provisions of the Tax Cuts and
Tax Reform
IRS and Treasury Announce Withdrawal of Related Party Basis Shifting Regulations
On April 17, 2025, the U.S. Internal Revenue Service (the “IRS”) issued Notice 2025-23 (the “Notice”), announcing its intention to withdraw the recently released final regulations final regulationsthat classify certain partnership related party basis shifting transactions and substantially similar transactions as “transactions of interest”. The Notice provides taxpayers and their…
Senators Crapo and Wyden Release Draft Bipartisan Taxpayer Rights Legislation
I. Introduction
On January 30, 2025, Mike Crapo (R-ID), the Chairman of the Senate Finance Committee, and Senator Ron Wyden (D-OR), the Ranking Member of the Senate Finance Committee released a discussion draft of the “Taxpayer Assistance and Service Act” (the “bill”), a bipartisan taxpayer rights bill intended…
Tax Proposals Potentially Being Considered by the U.S. House Budget Committee in Reconciliation
On January 17, 2025, multiple news outlets and other sources reported the existence of a memorandum circulated by the U.S. House of Representatives Budget Committee to the House Republican Caucus (the “Memorandum”) containing an extensive list of budget proposals that may be considered in connection with the new Congress’s widely expected budget reconciliation legislation. The Memorandum, which is publicly available via link from a number of news outlets,[1] contains approximately fifty pages of proposals covering a wide range of policy areas and enumerating scores of potential specific legislative proposals (along with estimated budget effects in most cases), some of which are seemingly mutually exclusive. Included in the memo are a number of tax-related proposals, including tariff proposals, which are briefly set forth below.
Trump Administration Disavows the OECD Global Tax Deal
On January 20, 2025, the White House issued a memorandum (the “Memorandum”)[1], announcing that the “Organization for Economic Co-operation and Development (OECD) Global Tax Deal” (the “Global Tax Deal”) has “no force or effect in the United States” and disavowing “any commitments” previously made by the United States…
Increase in Tax Audits of Use of Private Aircraft, a/k/a “Corporate Jets”
The IRS has announced a new audit campaign targeted at the use of private aircraft, a/k/a “corporate jets”. This has been an intensifying area of focus by the IRS over the last few years as a result of recently-increased tax benefits for private aircraft. Clients who use airplanes for business…
Treasury and IRS Announce New Attack on Partnership Basis-Shifting Structures and Establishment of “Passthrough Working Group” to Develop Further Partnership Guidance.
On June 17, 2024, the IRS announced the formation of a dedicated group in the Office of Chief Counsel specifically focused on developing guidance on partnerships, which is expected to work with a new “passthrough working group” being established in the Large Business and International Division of the IRS. At the same time, Treasury and the IRS launched an attack on a specific partnership strategy involving so-called “basis bump” or “basis shifting” transactions involving related parties through a combination of guidance challenging the substance of such arrangements and declaring such arrangements to be “transactions of interest” that are subject to the strict disclosure requirements of the “reportable transaction” rules.1

Proposed Regulations Issued on the Excise Tax on Repurchases of Corporate Stock
Introduction
On April 9, 2024, the Department of the Treasury (“Treasury”) and the Internal Revenue Service (the “IRS”) issued two sets of proposed Treasury Regulations related to section 4501, REG-115710-22, which provides guidance on the application of section 4501, and REG-118499-23 (together with REG-115710-22, the…
Final Regulations on Domestically Controlled REITs
- Introduction
On April 24, 2024, the U.S. Department of the Treasury (“Treasury”) and the Internal Revenue Service (the “IRS”) issued final regulations[1] on the definition of “domestically controlled” real estate investment trusts (“REITs”) (the “Final Regulations”). The Final Regulations retain…
Summary of the Biden Administration’s Fiscal Year 2025 Green Book Tax Proposals
On March 11, 2024, the Biden Administration released the Fiscal Year 2025 Budget, and the “General Explanations of the Administration’s Fiscal Year 2025 Revenue Proposals,” which is commonly referred to as the “Green Book.” The Green Book summarizes the Administration’s tax proposals contained in the Budget. The Green Book is not…