The Brazilian is set to join in a €28 million deal from Santos and will be unveiled to both the media and supporters at Camp Nou on Monday, June 3.
Following a photo session at midday at the Catalan club, Neymar will undergo medical tests at a nearby hospital before finally putting pen-to-paper on his five-year contract shortly before 17:00CET.
The 21-year-old will then take part in a second photo shoot in front of the club crest along with president Sandro Rosell, vice-president Josep M. Bartomeu and director of sport Andoni Zubizarreta.
Finally, doors will open to a presentation ceremony at Camp Nou for both fans and the media, prior to the player's first press conference as a Blaugrana player at 19:00CET. Around 50,000 supporters are expected to arrive for the event.
Neymar's transfer to Barcelona was agreed last week after the player opted against a move to Real Madrid or staying a further year in his homeland. He is currently in his native Brazil preparing for Sunday's friendly match against England at the Maracana.