"This difference in remuneration was never disclosed by the previous Titans administration or Mr Prince and was only unearthed by the new management."
However, the NRL said there was no evidence of systematic rorting of the salary cap at the Titans.
The suspended fine and points will be applied if there are any further salary cap breaches by the Titans over the next two years.
In a separate investigation into the Brisbane Broncos, the NRL said they had found no evidence of a salary cap breach.
The four other clubs were hit with varying fines due to breaches in 2013.
Manly were hit with a A$6000 fine for an overspend breach, the Knights A$35,519 for the same offence, the Roosters were slugged for A$40,000, with A$20,000 suspended for two years, with the penalty due to "a lack of substantive notes of negotiation".
The Tigers were fined A$9326 for an overspend on the youth competition.
Despite the penalties, NRL general manager of integrity Nick Weeks was satisfied clubs are playing by the rules.
"I am satisfied that clubs are generally attempting to meet their salary cap duties," he said. "But all clubs are on notice that we have drawn a line in the sand.
"If clubs breach the salary cap in the future they will face heavy penalties, including the loss of competition points."
-AAP
