Ronaldo, the four-time Ballon d'Or victor, reportedly wanted a transfer away from Real and out of the country after being accused by Spanish prosecutors last week of defrauding tax authorities of €14.8 million (about £12.9m/$16.5m).
Asked about potential clubs Ronaldo could join, Perez said: "I'm not contemplating Ronaldo leaving".
Perez's radio interview came hours after the 70-year-old businessman was reelected to a fifth four-year term as Madrid's president. "He will tell us what has happened".
"It's no coincidence that he's in a very important tournament, the Confederations Cup".
A young German side missing an array of big stars were still too good for the Australians as the world champions trumped the Socceroos 3-2 on Monday.
"I still haven't spoken to Cristiano Ronaldo".
The future of all-time top scorer Cristiano Ronaldo and fellow forwards Alvaro Morata and James Rodriguez has, however, been thrown into doubt, although Perez said Real has not started conducting their business yet.
"We do not see any reason not to continue with the players we have, including James", he added. "The whole thing is very unusual because Cristiano Ronaldo is a great guy, both as a player and a person. This is all very unusual, I will have to speak with him to see what's going on".
"I will talk with him when the Confederations Cup has finished". What I will say is that everyone must fulfil their tax obligations.
"What they have told me is that he has the same financial arrangements as he had in England, where he had no problems".
Why does Ronaldo want to leave?
Last year, Barcelona forward Lionel Messi and his father, Jorge Horacio Messi, were found guilty on three counts of defrauding tax authorities of €4.1m (£3.6m) from income made from image rights.
He has also helped his team to win two La Liga titles after joining it on transfer from Manchester United for a ten record 80 million pounds in 2009.
"The clause for Cristiano is £1bn".
"No one at the club wants Morata to leave, and I have not heard him saying he wants to go", he said.