Most schools do not publish a minimum acceptable GMAT score or detailed statistics about the scores achieved by applicants. However, schools do generally publish the average and median score of their latest intake, which can be used as a guide.
At nearly all of the top business schools that are commonly listed in popular magazines and ranking services, the GMAT scores will average in the upper 600s or low 700s. The Wharton School of the University of Pennsylvania, commonly regarded as one of the top business schools in the US, reports an average GMAT score of 713; Harvard Business School, another top tier U.S. business school, reports a 2006 average of 707. Northwestern University's Kellogg School of Management reports an average GMAT of 700, with approximately 75 percent of enrolled students scoring between 650 and 740. INSEAD, one of Europe's leading business schools with a highly multinational student body, reports a 2005 GMAT average of 705.
It may be possible to overcome a low test score with impressive real world accomplishments, good undergraduate performance, outstanding references, or particularly strong application essays.