1. Manchester City - £427m spend
It is no surprise that Manchester City have the highest net spend since the summer of 2006.
Since the Citizens were taken over in 2008 by Sheikh Mansour their spending has gone stratospheric, with the likes of Sergio Aguero, Carlos Tevez and David Silva arriving at the Etihad Staium for over £100 million.
Their spending has of course paid off; City claimed their first league title in 44 years last time round, while they claimed the FA Cup the season before last.