According to multiple sources, KSIs net worth as of October 2023 is estimated to be around $27 million. He has amassed his fortune through various ventures, including YouTube, music, boxing, and business enterprises such as Prime Hydration, XIX Vodka, and the restaurant chain Sides. KSIs YouTube channel has over 30 million subscribers and billions of views, and he reportedly earns around $250,000 from every video. He also endorses brands like Adidas, Misfit Boxing, and other big names, and has made more than $20 million from Sidemen. Additionally, KSI owns multiple real estate properties, including houses in Watford and London, and has a collection of luxury cars.