WASHINGTON -- The California Supreme Court is set to decide the constitutionality of the state's worldwide unitary business tax, and several U.S. senators want the federal government to intervene on behalf of the plaintiff, a domestic multinational firm.

The case, Colgate-Palmolive Co. v. Franchise Tax Board, is being watched closely by multinational businesses, which for decades have fought largely losing battles against state unitary taxes.

Subscribe Now

Access to authoritative analysis and perspective and our data-driven report series.

14-Day Free Trial

No credit card required. Complete access to articles, breaking news and industry data.