Mortgage brokers typically earn a commission that is based on the size of the loan they facilitate, with the percentage generally ranging from 0.35% to 0.45% of the total loan amount. This means that for a loan of $200,000, a broker could earn between $700 and $900. The exact commission can vary depending on several factors, including the lender's policies, the complexity of the loan, and the broker's negotiation skills. Additionally, some brokers may charge a flat fee or receive compensation from the lender, which can also influence their earnings. It's important for borrowers to understand how these commissions work, as they can impact the overall cost of obtaining a mortgage. Transparency in these fees is crucial, and borrowers should feel comfortable asking their brokers for a detailed breakdown of how their commission is calculated.