Yum！Brands(YUM.N)在美国税务法院起诉国税局，涉及40亿美元的税单。

Core Viewpoint - Yum! Brands (YUM.N) has filed a lawsuit against the IRS in the U.S. Tax Court concerning a tax bill amounting to $4 billion [1] Group 1 - The lawsuit involves a significant tax liability that Yum! Brands is contesting, which could have substantial financial implications for the company [1] - The case highlights ongoing disputes between large corporations and tax authorities, reflecting broader issues in corporate taxation [1]