"The denunciation implies that everything derives from the participation of a tax haven structure, similar to that of other players", Gestifute said.
Real Madrid has issued a statement saying that it believes that Cristiano Ronaldo is "innocent" after a Spanish state prosecutor accused him of defrauding the country's tax office of €14.8m (US$16.5m).
"Cristiano Ronaldo has always shown since his arrival at Real Madrid CF, in July 2009, a clear will to fulfil all his tax obligations".
The Portuguese revenue authority is investigating alleged tax fraud by clubs and football players, including Portuguese football star Cristiano Ronaldo, local newspaper Publico reported on Wednesday. Prosecutors say Ronaldo used a shell company located in the Virgin Islands "in order to hide his total income from Spain's Tax Office".
"Throughout all of the above mentioned years, CR never had a tax problem, contrary to what the Spanish Prosecutors insinuate".
Ronaldo had previously said he was not anxious about tax investigations as he had nothing to hide.
He "intentionally" failed to declare almost €32m (US$ 36m) in income especially from sale of his image rights, according to prosecutors.
The 32-year-old Ronaldo - the world's highest paid athlete according to Forbes magazine - follows in the footsteps of Barcelona forward and Argentina star Lionel Messi, who was found guilty of the same offence last year, although the sums involved were allegedly smaller.
In addition, prosecutors accused the Real Madrid striker of falsely declaring how much money he made from 2011-14.
However, a statement from Ronaldo's management company Gestifute insisted the company, Tollin, which was established during Ronaldo's time with Manchester United, has acted in accordance with British and Spanish tax laws.