The Brazilian forward Neymar is expected to complete the richest transfer in soccer history this week after informing his club, Barcelona, that he wishes to join Paris Saint-Germain. The transfer fee alone will cost the French team $263 million, more than doubling the previous record.

As well as meeting the buyout clause in the player’s contract at Barcelona — €222 million, a figure once thought to be out of the question even for the world’s richest clubs — P.S.G. is prepared to pay Neymar around €30 million a year, after taxes (about $35 million), in salary over the next five years. Neymar’s father, who also acts as his agent, is expected to earn a commission in the region of €40 million.

Some estimates have put the total cost of the deal to P.S.G.’s Qatari owners at more than half a billion dollars, including various image rights allowances and, according to at least one report, a possible ambassadorial role for Neymar during the 2022 World Cup in Qatar.

Neymar, 25, informed Barcelona of his wish to leave after returning to Spain from a brief promotional visit to China on Tuesday. He reported to Barcelona’s training center on the outskirts of the city on Wednesday morning, but, with the blessing of the club’s coach, Ernesto Valverde, did not join in training.