Senate Bill Targets Corporate Inversions, Would Treat U.S.-Run Companies as American for Tax Purposes
Also known as: Stop Corporate Inversions Act of 2026
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4 articlesDurbin, Reed, Doggett Reintroduce Bill to Close Corporate Tax Inversion Loopholes
Senate Democrats reintroduced the Stop Corporate Inversions Act, a measure aimed at preventing U.S. companies from shifting their tax domicile abroad. The bill would treat merged firms as domestic if original owners retain more than 50% control of the new entity.
Legislative risk: S.3847 (Stop Corporate Inversions Act of 2026) was flagged as potentially relevant to multinationals including AMGN
S.3847 (Stop Corporate Inversions Act of 2026) was flagged as potentially relevant to multinationals including Amgen; the bill would tighten rules around inversion tax treatment — a longer-term policy item to monitor but not an immediate earnings driver.

Durbin, Others, Introduce Bill To Stop Tax Dodging Schemes
The Stop Corporate Inversions Act of 2026 would treat a combined foreign corporation as a domestic corporation if the shareholders of the former U.S. corporation own more than 50 percent of the new entity, or if the group is managed and controlled in the United States.