Setback for Mark Zuckerberg, US IRS sues Facebook for $9 billion in unpaid taxes
Facebook told the court that it valued only $6.5 billion in 2010 but the IRS begged to differ, saying the social media giant "knowingly undervalued itself while selling off its intellectual property to a new company based in Ireland to avoid paying US corporation tax".

US Internal Revenue Service (IRS) has sued Mark Zuckerberg led Facebook for $9 billion in unpaid taxes, Photo: Reuters