With Chelsea knocked out of the Champions League in midweek, there were suggestions Mourinho would spend big in the summer, with the club being linked to a move for Juventus midfielder Paul Pogba.
But Mourinho insists only minor changes are needed to his squad when the window opens in July, and he is delighted with the emergence of a younger element at Stamford Bridge.
He made one big splash in January, bringing in Juan Cuadrado from Fiorentina for more than ??23m, but that kind of expenditure might not be repeated.
Mourinho said: “Our transfer policy doesn’t need a lot of funds, because we don’t need a lot of things. We like our squad, we like our players and with a couple of exceptions we have a young squad.
“And once more, I think our transfer policy will be nice and quiet and will also be a consequence of the players we sell and the funds we make from the players we sell.
“I think we are getting great credibility from the players we sell, because we sell good players.
“So let’s see what happens. But at this moment if you ask me am I happy with the players I have here, I am happy with the squad I have.
“If you ask me you say zero movement in and out, I say I don’t believe because we always want to improve and there are always a couple of changes to be made. But nothing really important. I am not worried about funds because they are fine.”
Mourinho played down any interest in Pogba, who is going to struggle to play again this season because of a hamstring injury, as he likes the look of young midfielder Rueben Loftus-Cheek.
He added: “I don’t think about Pogba or other players. The only thing I can tell you is we look at our midfield players. And between Nemanja Matic, Cesc Fabregas, Ramires, Rueben, Mikel is injured – we have a good group and I believe a lot in Rueben.
“Next season the squad will be made in a way that Reuben will not be a number, he will compete for a position.”