Conformation of a ninth and final season comes after unofficial reports of a renewal emerged in December.
Writers Carter Bays and Craig Thomas have always said that they’d need a year’s notice to properly tie up their loose ends.
“We’re writing this season like it’s the end,” Thomas said at the start of the current season. “We’ll have to have a Plan A and a Plan B going, and we’re approaching the moment where those plans diverge.”
CBS Entertainment president Nina Tassler said, “Through eight years, How I Met Your Mother has mastered the art of leading-edge comedy, emotional water-cooler moments and pop culture catchphrases.
“We are excited for Carter, Craig, Pam Fryman and this amazing cast to tell the final chapter and reveal television’s most mysterious mother to some of TV’s most passionate fans.”
The current series is averaging 10 million viewers in the US and airs Mondays on Seven.
Source: Hollywood Reporter