Shannon Briggs has net worth is estimated to be more than $10 million. In 1997, he won his first significant prize money of $400,000 in a fight for the Lineal heavyweight championship against George Foreman. He won the match by unanimous decision, but despite his defeat, his opponent received $5 million. He defended his title against Lennox Lewis shortly after winning it. Lewis received $4 million for the fight, while Briggs received $1 million.
Briggs must have made millions from his sponsorship deals, advertisements, and other sources of income. He fought in over sixty professional matches and has not disclosed his earnings in the majority of them. Shannon agreed to terms with Bare Knuckle FC in 2020.