"The taxes Mr. Zuckerberg and other Facebook shareholders pay on exercised stock options will translate into a big tax benefit for the company. The I.R.S. allows companies to take a mirror deduction for the employees’ option compensation. Facebook anticipates that the deduction will eliminate the tax bill on its $1 billion in 2011 profits, according to its regulatory filings. The company also expects the break to generate as much as $500 million in additional deductions, which can be used for refunds for 2009 and 2010 and for reductions in future years. Facebook declined to comment further on Mr. Zuckerberg’s tax plans."
“Due to the stock option loophole, Facebook may not pay any corporate income taxes on its profits for a generation,” said Senator Carl Levin, a Michigan Democrat who has proposed changing the policy. “When profitable corporations can use the stock option tax deduction to pay zero corporate income taxes for years on end, average taxpayers are forced to pick up the tax burden,” he said. “It isn’t right, and we can’t afford it.”