Tax Policy

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On January 16, 2026, in Sirius Solutions, L.L.L.P. v. Commissioner,[1] No. 24-60240 (5th Cir. Jan. 16, 2026), the U.S. Court of Appeals for the Fifth Circuit reversed the Tax Court and held that, for self-employment tax purposes, a “limited partner” means “a partner in a limited partnership that…

I.          Introduction

On December 15, 2025, the U.S. Department of the Treasury (“Treasury”) and the Internal Revenue Service (the “IRS”) published final regulations (the “Final Regulations”) and proposed regulations (the “Proposed Regulations”) under section 892.[1] The Final Regulations finalize, with modifications…

I.          Introduction

Should courts respect a transaction for tax purposes, when it otherwise complies with the technical requirements of the Internal Revenue Code and regulations? When should a court take the next step and consider the economic substance of a transaction and its motivations?

In two highly-awaited court decisions…

I. Introduction

On October 20, 2025, the U.S. Department of the Treasury (“Treasury”) and the Internal Revenue Service (the “IRS”) issued proposed regulations (the “Proposed Regulations”) that would helpfully revoke the current “look-through rule” for domestic C corporation shareholders to determine whether a “real…

On September 10, 2025, California’s Franchise Tax Board (“FTB”) adopted final regulations (“Final Regulations”) amending the rules regarding market-based sourcing for sales other than sales of tangible personal property.  This brings to an end the FTB’s long-running process toward formally adopting the amendments first approved in…

I. Introduction

On July 4, 2025, President Trump signed the One Big Beautiful Bill Act (the “Act”) into law.[1] The Act is similar to the Senate Finance Committee’s draft legislative text (the “SFC Bill”) (released on June 16, 2025), with several modifications and omissions. The Act’s key differences from…

On May 22, 2025, the House of Representatives passed the One Big Beautiful Bill Act (H.R. 1, hereafter the “Revised House Bill”).  The Revised House Draft Bill contains certain changes to the original bill that was released on May 12, 2025 by the House Ways and Means Committee (the “Original House Draft…

June 2025 – The UK Government has published its response to the consultation on its proposal to change the tax treatment of carried interest, confirming the expected final shape of the new regime which will take effect from April 2026.

The reforms, first announced in October 2024, mark a significant…

Senator Thom Tillis introduced a bill (called the “Tackling Predatory Litigation Funding Act”) that would impose additional significant taxes on litigation funding investments. Rep. Kevin Hern (R-OH) introduced a similar bill in the House of Representatives. The bill would apply to taxable years beginning after December 31, 2025, which could include…

On May 20, 2025, California’s Franchise Tax Board (“FTB”) released changes to the proposed regulations (“Draft Regulations”) that would amend the rules regarding market-based sourcing for sales other than sales of tangible personal property.  This is the latest step by the FTB in the long-running process toward formally adopting the amendments first approved in 2016, which we described in a September 2024 blog post when FTB released an updated draft of the amendments.