As of October 2023, KSIs net worth is $27 million. KSI is a British YouTuber who has made a name for himself with video game commentary, rap songs, and boxing acumen. He started his YouTube career in 2009, and his channel reached 1 million subscribers in 2012. KSIs net worth comes from various ventures and opportunities that have come his way, including YouTube ad revenue, music royalties, boxing PPV/ticket sales, and his involvement in various businesses. He co-founded Prime Hydration, XIX Vodka, and the restaurant chain Sides, further adding to his wealth. KSI has also released two albums and collaborated with various artists. Additionally, he owns multiple real estate properties, including houses in Watford and London.