The Loftus Road outfit – now in the Premier League – will be slapped with a fine that could go up to £50 million for breaching financial regulations.
QPR owner Tony Fernandes has promised to "fight" any fine from the Football League despite the club racking up huge losses of over £65m during the 2012-13 season.
Last season's figures are yet to be released but given the club played in the Championship, they are not expected to be kind on QPR.
Redknapp showed his faith in QPR's owners at a news conference on Friday, though, and said the current rules made life difficult for sides relegated into the Championship.
"I'm sure the owners know what they are doing," Redknapp said.
"If a team invests and gets relegated then what do you do?
"You can't just offload all of your players, it is very difficult to do that when they are on Premier League wages and are in the Championship.
"It's a chicken and egg situation. Do you just come up and not spend and go down again, or do you spend a bit of money try to stay up and then be in trouble for Financial Fair Play?"
Redknapp's men face Manchester United on Sunday, a team who have spent more than £150million in the recently completed transfer window.
"To make it fair, we should be able to spend as much as Manchester United," he added.
"What is fair play? One team can spend £200m, another team can spend £8m?
"Fair play would be everyone having the maximum of £30m to spend on their team and then have to bring in some players from the youth team.
"Seven teams are on another planet to the rest. You don't have to be a genius to pick the top seven teams - it will be almost certainly be the same seven as last year."
