But a statement released by Mourinho's representatives Gestifute Media said he had not been informed personally of the accusations.
Ronaldo was livid over being singled out for disproportionate treatment after the Spanish prosecutors accused him of defrauding the authorities of €14.7m (£12.8m).
Manchester United and Paris St Germain have been alerted to Ronaldo's potential availability following the revelations of his disenchantment with his predicament in Spain, but his former club have played down talk of a return to Old Trafford.
Ronaldo has been summonsed to appear in court in Madrid on July 31 as part of the investigation.
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Overall, officials found that in the most severe scenario, companies would have suffered about US$383 billion in losses on loans. Almost nine years on, banking industry profits have been steadily rising and banks have been lending more freely.
It will now be up to a judge to decide whether to take the matter to court.
Perez confirmed that he meant to speak to Ronaldo in a bid to defuse his anger over his fraud charges, but it seems there is a viable option open to him if he is determined to make a move this summer.
Madrid prosecutors said that after signing for the Spanish giants from Benfica in 2010, Di Maria had used companies in Panama and Ireland to hide earnings from the marketing of image rights.
Real Madrid president Florentino Perez says he hasn't spoken to superstar Cristiano Ronaldo as transfers rumors continue to pick up steam amid tax issues, but he is apparently confident that the player isn't going anywhere. The two were given 21-month jail sentences but neither is expected to serve prison time since it was a first offense and the sentence was under two years.
The Portuguese worldwide, whose header salvaged 1-0 win over Russian Federation in Wednesday's Confederations Cup, has been targeted by Manchester United, Paris Saint-Germain and AS Monaco after a Spanish authorities accused Ronaldo of tax-fraud evasions, per Marca. This is similar to deals struck with the Spanish taxman by fellow Argentinians Javier Mascherano and Lionel Messi a year ago.