"I have enjoyed seven seasons co-hosting DWTS but understand the need for change considering the position of the show at this juncture," she added in a follow-up statement.
Burke-Charvet, a Mirror Ball Trophy winner herself, has been by host Tom Bergeron's side as cohost since season 10.
Just last week it was revealed that the show has done away with its 28 piece band, including leader Harold Wheeler. And last season, it went from two nights a week down to one.
The new leaner, cheaper-to-produce DWTS will return for its 18th season on March 17. The celebrity participants will be announced March 7.