LIV Golf posted an announcement to its website under a statement that Talor Gooch is the new captain of the Smash team that Koepka had led.
Scott O'Neil, the new CEO of LIV, said Koepka and LIV "amicably and mutually agreed" that Koepka will no longer compete in the league.
"Brooks is prioritizing the needs of his family and staying closer to home," O'Neil said. "We appreciate the significant impact he has had on the game and wish him continued success, both on and off the course."
LIV does not disclose contracts, though it was believed Koepka had another year left from when he joined in June 2022.
The PGA Tour policy banning players who have joined the rival league requires them to sit out for one year from their last participation. LIV ended its season on August 24.
Koepka began his career on the European tour and would have access to play there. He played four European tour events this year.
Blake Smith, Koepka's manager at Hambric Sports, said there would be no comment beyond a statement released through LIV Golf that Koepka is grateful for his time at LIV.
"Family has always guided Brooks's decisions, and he feels this is the right moment to spend more time at home," the statement said. "Brooks will continue to be a huge supporter of LIV Golf and wishes the league and its players continued success. Brooks remains passionate about the game of golf and will keep fans updated on what's ahead."
The PGA Tour, while not offering any substance, took the rare step of acknowledging the move involving a player who is no longer a member.
"Brooks Koepka is a highly accomplished professional, and we wish him and his family continued success," the tour said in a statement. "The PGA Tour continues to offer the best professional golfers the most competitive, challenging and lucrative environment in which to pursue greatness."
The AP understands Koepka had alerted the PGA Tour of his plans before the LIV announcement.
The first step for Koepka to return would be to re-apply for membership.
Koepka, who spent 47 weeks at No.1 in the world in 2018 and 2019, was one of the biggest signings by LIV when it launched in 2022. He had been coping with injuries and later suggested he might not have joined had his health been better.
He was the first LIV player to win a major in 2023 when he won the PGA Championship at Oak Hill for his fifth major.
Koepka won five times on LIV Golf, but he had only two top 10s — his best was a runner-up — in 2025 and finished 31st in the standings of the 54-man circuit. He missed the cut in five of the eight tournaments he played outside LIV this year, including three majors.
A blunt speaker, Koepka had expressed frustration earlier in the year that LIV wasn't as far along as he hoped it would be.
His departure leaves Bryson DeChambeau and Jon Rahm, both two-time major champions, as the biggest draws in the league that also includes Australia's 2022 British Open champion Cameron Smith and England's Ryder Cup player Tyrrell Hatton.
The 11-tournament 2026 LIV Golf season opens in Riyadh from February 4-7 before heading back to Australia for its Adelaide tournament from February 12-15.
