But the Reds boss, speaking after his side beat Sampdoria 2-1 in Dublin in a pre-season friendly, is concerned how the staggering figure will affect future transfers.
Mourinho shelled out 105.2 million euros (USD 111 million) last summer to re-sign their former midfielder Paul Pogba from Juventus, but the French outfit are poised to double that record to tempt the Brazilian from Barcelona.
"When we signed Paul Pogba, I said he was not expensive," Mourinho said.
"Neymar is one of the best players in the world, so commercially that is very strong but the problem is not Neymar -- the problem is the consequences."
More From This Section
Mourinho was speaking after a late Juan Mata goal gave his United team victory in their final pre-season game, after a Dennis Praet strike had cancelled out Henrikh Mkhitaryan's first half goal.
Mourinho revealed the club are likely to appeal the two- game European ban handed to Phil Jones after verbally abusing anti-doping officials after the Europa League final win in May.
"Put yourself in his position. He wins a European cup and wants to celebrate with his team," Mourinho said.
"He wants to get the cup, the medal and be in the pictures but one doctor wants to close him in a small room because of the doping control. It's very hard to control a player in this situation and UEFA should consider this. It's not a normal match -- it's a cup, a medal, a celebration. It's everything.