The 29-year-old has reportedly already agreed personal terms and is now expected to travel to Liverpool to undergo a medical.
Allan, who has been capped nine times by Brazil, will reunite with Carlo Ancelotti at Everton, having previously worked under the Italian for two seasons while he was in charge of Napoli.
Ancelotti has helped Everton to beat off competition to sign Allan from Atletico Madrid and Borussia Dortmund.
Ancelotti has made strengthening Everton’s midfield a priority this summer.
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