Barcelona president Josep Maria Bartomeu intends to open new contract talks with Neymar next year.
Sport says Bartomeu's predecessor, Sandro Rosell, promised Neymar that, upon signing with Barca, after two and a half years they would meet again to discuss an improvement in terms.
Neymar is currently on €8.8 million a year with Barca and will seek around €14 million a year, plus a further €4 million in bonuses.
Barca will also want to increase his buyout clause, amid interest from Manchester United, from its current €190 million.
Neymar will use United's willingness to pay him €20 million-a-year as a bargaining chip - along with next year's Ballon d'Or, where he is expected to make the final three nominees.