Amgen Plans To Challenge Latest $7.1B Tax Bill From IRS

By Hailey Konnath (April 27, 2022, 10:57 PM EDT) -- The Internal Revenue Service has notified Amgen that it owes $5.1 billion in back taxes plus $2 billion in penalties tied to its Puerto Rico subsidiary, the drugmaker disclosed Wednesday, adding that it plans to fight the bill in U.S. Tax Court....

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