A commission is a service fee charged by a broker or financial professional for the facilitation of a financial asset’s purchase or sale.

　　In the regulated securities and commodities markets, buyers and sellers require the services of a registered entity to transact sales of assets such as stocks, options, and futures contracts. Brokers who assist in the sale of a home also charge commissions. Commission payments may generally be encountered in any commercial domain in which a transaction is facilitated by a third-party agent.

　　Karl Montevirgen