NEW YORK, USA: If you thought Mark Zuckerberg, 27, as Facebook founder had it easy getting yearly bonus, hold on. He too has to earn it as his 45 per cent target bonus is based on his performance.

This was revealed by Facebook in a filing with the Securities and Exchange Commission on Wednesday, ahead of its IPO.

Not just that. Facebook pays Zuckerberg a base salary of $500,000 per year and its top executives are eligible for twice-a-year bonuses of up to 45 per cent of their base salaries. Also, Facebook pays $1.2 million a month as rent for its Menlo Park campus.

Other disclosures included chief operating officer Sheryl Sandberg receiving a base salary of $300,000 with a target bonus of 45 per cent. David Ebersman will continue to serve as chief financial officer and would get a base salary of $300,000. Mike Schroepfer, Facebook's vice president of engineering, will receive a base salary of $275,000, according to Washington Post.