The 21-year-old produced an eye-catching first season with the Cowboys in 2011, playing in 22 matches after making his debut for the club in round three against the Melbourne Storm.
He was originally signed until the end of the 2012 season but General Manager – Football Peter Parr said the young winger’s impressive progress made him a priority for a contract extension.
“We’re very pleased with how Kalifa has improved since coming to the club and think he will become an even better footballer with the more experience he gains in the NRL,” Parr said.
“We’re looking forward to seeing him continue that development as a North Queensland Cowboy.
“He’s just played Test football at just 21 years of age and to have him commit to the Cowboys is something we’re delighted about.”