The club has been accused of breaching Premier League rules more than 100 times between 2009 and 2018, a time period directly following the 2008 takeover led by Sheikh Mansour of the Abu Dhabi United Group.
Specifically, they allegedly failed to provide accurate financial information to the Premier League, misleading regulators about its revenue including its sponsorship income and operating costs. There were alleged discrepancies found in how much Manchester City paid manager Roberto Mancini from 2009-13 and various players from 2010-16 - salary figures they are required to report to the league. There are also charges that Manchester City ran afoul of Premier League rules on profitability and sustainability from 2015-18.
The scope of the investigation goes beyond domestic action; the Premier League determined that Manchester City may have broken UEFA Financial Fair Play (FFP) rules from 2013-18. Previously, however, a UEFA ban from European competitions was overturned by the Court of Arbitration for Sport. A €10 million fine was still assessed.
“In accordance with Premier League Rule W.82.1, the Premier League confirms that it has today referred a number of alleged breaches of the Premier League Rules by Manchester City Football Club (Club) to a Commission under Premier League Rule W.3.4.,” the Premier League said in a statement.
Manchester City, who have won six Premier League titles under current ownership, denied all charges brought by the Premier League after the four-year investigation.
"Manchester City is surprised by the issuing of these alleged breaches of the Premier League Rules, particularly given the extensive engagement and vast amount of detailed materials that the EPL has been provided with," the club wrote in response to the allegations.
"The club welcomes the review of this matter by an independent commission, to impartially consider the comprehensive body of irrefutable evidence that exists in support of its position.
"As such we look forward to this matter being put to rest once and for all."