TMZ reported Thursday that John LaBonty, who headed up Boldface that launched the line, alleges Kim, Khloe and Kourtney along with momager Kris Jenner failed to pay him an agreed five percent share of profits from their Beauty products.
The reality TV family had a deal with Boldface to market the Beauty products and although the company was acquired by another company in 2014, Labonty says he's still entitled to millions of dollars in profits.
DailyMail.com has contacted reps for the Kardashians and Jenner for comment.
It's the latest suit to be filed stemming from the launch of the Kardashian Beauty line back in 2012.
It debuted as Khroma Beauty with Boldface marketing the products.
But almost straightaway it was hit with lawsuits from the owner of a high-end Beverly Hills makeup studio named Chroma and a Florida woman who'd trademarked the name Kroma for her own makeup line in 2004.
During the ensuing legal drama, sales of the Kardashian products slumped and in