IRS Seeks $9 Billion in Taxes From Facebook Over Sale of IP to Subsidiary in Ireland

A trial began this week in a tax court in San Francisco

The IRS is calling, and it's not good news for Facebook pabradyphoto/iStock

The taxman is knocking on the door in Menlo Park, Calif., and he’s carrying a pretty big bucket. David Cohen is editor of Adweek's Social Pro Daily.