Stop Corporate Inversions Act of 2026

Bill Number: S. 3847
Origin Chamber: Senate
Congress: 119th Congress, Session 2
Policy Area: Taxation
Status: Introduced
Latest Action: 2026-02-11: Read twice and referred to the Committee on Finance. (text: CR S579-580)
Last Updated: 2026-03-02T16:11:43Z

AI-Generated Summary

Purpose of the Legislation

The "Stop Corporate Inversions Act of 2026" aims to prevent U.S. companies from relocating their legal headquarters abroad (known as corporate inversions) primarily to avoid U.S. taxes. It strengthens tax rules to treat more foreign-incorporated companies as U.S.-based for tax purposes if they result from such moves, thereby closing loopholes that allow tax avoidance.

Key Provisions

Treatment of Inverted Corporations as Domestic: A foreign corporation is treated as a U.S. domestic corporation for tax purposes if it meets certain ownership or control thresholds. This includes:
Corporations that would qualify as "surrogate foreign corporations" (a term for inversion results) but with a stricter 80% ownership threshold by former U.S. owners (up from 60%).
"Inverted domestic corporations," where a foreign entity acquires substantially all assets of a U.S. corporation or partnership after May 8, 2014, and either:
More than 50% of its stock (by vote or value) is held by former U.S. shareholders or partners.
The group's management and control occurs primarily in the U.S., and it has "significant domestic business activities" (defined below).
Exception for Substantial Foreign Business: Inverted corporations are exempt if the group conducts substantial business activities (e.g., employees, sales, or assets) in the foreign country of incorporation, based on pre-2017 Treasury regulations. The Secretary of the Treasury can adjust thresholds upward.
Management and Control Definition: Regulations will determine if control is primarily in the U.S., focusing on whether executive officers and senior managers (those making strategic, financial, and operational decisions) are based there. This applies retroactively after May 8, 2014.
Significant Domestic Business Activities: A group qualifies if at least 25% of its employees, compensation, assets, or income are U.S.-based, using adapted pre-2017 regulations. The Secretary can lower this threshold.
Conforming Changes: Updates to related tax code sections to align definitions and apply rules consistently, including stock ownership calculations and exceptions.

Significant Changes to Existing Law

Expands Section 7874 of the Internal Revenue Code by replacing subsection (b) and making the 80% surrogate threshold permanent, while limiting the prior 60% rule to pre-May 8, 2014, inversions.
Introduces a new "inverted domestic corporation" category with 50% ownership or U.S.-centric management/control tests, which did not exist before.
Allows Treasury flexibility to tighten or loosen thresholds via regulations, unlike the more rigid prior rules.
Makes changes retroactive to taxable years ending after May 8, 2014, potentially reclassifying past inversions.

Potential Impacts

Government Agencies: The IRS may see increased enforcement and revenue collection from reclassified corporations, estimated to boost U.S. tax income by curbing offshore profit shifting. Treasury will need to issue new regulations.
Citizens: Could lead to fairer taxation, reducing the burden on individual and small business taxpayers who cannot use similar strategies. However, it might indirectly raise costs for consumers if affected companies pass on higher taxes.
International Relations: May strain ties with countries hosting inverted firms (e.g., Ireland, Netherlands) by challenging their tax havens, potentially prompting retaliatory policies or disputes under trade agreements.

Main Stakeholders Affected

U.S. Corporations and Multinationals: Companies that inverted or plan to (e.g., in pharmaceuticals or tech) face higher U.S. taxes on global income, limiting tax avoidance.
Foreign Corporations: Those acquiring U.S. entities risk reclassification as domestic, subjecting them to U.S. worldwide taxation.
Shareholders and Partners: Former U.S. owners could see changes in stock value and tax liabilities based on ownership percentages.
U.S. Government: Gains tax revenue but may face administrative challenges in audits.
Employees and Partnerships: U.S.-based workers in affected groups benefit from retained domestic operations; partnerships face similar asset acquisition rules.

Notable Legal, Constitutional, or Political Implications

Legal: Retroactivity could lead to litigation over past inversions, challenging IRS authority under administrative law. Relies on Treasury regulations for implementation, which might invite court scrutiny if thresholds are adjusted.
Constitutional: No major issues anticipated, as it amends tax code under Congress's broad taxing power (Article I, Section 8), but could raise due process concerns if applied unfairly to completed deals.
Political: Bipartisan support (introduced by Democrats) targets corporate tax dodging, aligning with anti-avoidance efforts like the 2017 Tax Cuts and Jobs Act. May influence future tax reform debates but could deter foreign investment in U.S. assets.

This summary was generated by AI and may contain inaccuracies. Refer to the official source document for the authoritative text.

Sponsor

Sen. Durbin, Richard J. [D-IL]

Cosponsors (9)

Sen. Reed, Jack [D-RI], Sen. Van Hollen, Chris [D-MD], Sen. Warren, Elizabeth [D-MA], Sen. Whitehouse, Sheldon [D-RI], Sen. Blumenthal, Richard [D-CT], Sen. Duckworth, Tammy [D-IL], Sen. Hirono, Mazie K. [D-HI], Sen. Sanders, Bernard [I-VT], Sen. Baldwin, Tammy [D-WI]

Recent Actions

2026-02-11: Read twice and referred to the Committee on Finance. (text: CR S579-580)
2026-02-11: Introduced in Senate

Bill Versions

Stop Corporate Inversions Act of 2026 — issued 2026-02-11 — PDF (7 pages)