The NSW Origin prop knocked back a $2 million per season contract with a rival club to accept the Broncos deal and his manager Ahmad Merhi told AAP that the 23-year-old was over the moon to get his future sorted.
"Payne is delighted. This is his celebratory moment," Merhi said.
Merhi said the figures agreed with the Broncos were "private and confidential" but added that there were other suitors who had put forward lucrative offers.
Merhi has always said getting the deal done was not about money and he confirmed that Haas had been in high demand.
"Payne has knocked back a $2 million per season deal to stay at Brisbane," he said.
"The offer was emailed to me. I showed it to Payne and he knocked it back.
"Brisbane have just been great to deal with.
"CEO Dave Donaghy has ensured the process has been smooth and what transpired the last couple of weeks has got it over the line.
"I was always hopeful of Payne staying at Brisbane. It was always going to be the best thing for him. It is what we all wanted."
Haas was on contract for 2024. His new deal includes an upgrade for next year and a two-year extension.
The Broncos have catered for Haas's request to upskill him in areas that will help him develop outside of rugby league.
Haas has stated his desire to win premierships and he believes that he can do that at the Broncos, who are currently second on the ladder.