Leeds and Burnley are threatening legal action against Everton and the Premier League over the handling of the club's finances.
Both clubs wrote to the league last week regarding Everton's most recent accounts which showed losses of £120.9m for the 2020-21 season.
They have posted losses of £372m over the past three years.
League profitability and sustainability rules allow for losses of £105m over a three-year period.
Everton say that Covid-19 losses over the past two seasons amount to £170m, which can be deducted from their total.
But that figure has caused surprise among some Premier League teams because it dwarfs clubs of a similar size.
Earlier this week, Newcastle posted Covid-19 losses of £40m over the past two seasons, while Aston Villa said theirs amounted to £56m.
Everton, who have been involved in a relegation battle with Leeds and Burnley, secured their Premier League status on Thursday with a 3-2 win over Crystal Palace.
But they are confident they are compliant with Premier League rules and have been "working formally" with the league.
Burnley and Leeds want an independent commission to assess Everton's finances urgently.
It is understood they are viewing the matter as one of sporting integrity given that the Toffees spent more money in the last transfer window by signing Dele Alli, Vitaliy Mykolenko and Nathan Patterson in deals worth an initial £35m, rising to as much as £70m.
Burnley, Leeds and the Premier League declined to comment when contacted by BBC Sport.
The PL will be glad to see the back of us.