The 37-year-old will be aiming to end his six-year Galaxy stay in style when they defend their title against the Houston Dynamo on December 1 before seeking to extend his playing career elsewhere.
He told the Major League Soccer website: "I've had an incredibly special time playing for the LA Galaxy, however, I wanted to experience one last challenge before the end of my playing career.
"I don't see this as the end of my relationship with the league as my ambition is to be part of the ownership structure in the future."
Beckham had been linked to a move to Australia's A League, however his management team had dismissed the reports.
More to follow...