I agree with the others: read your agreement, but still ask your agent to handle the sale. The bulk of the commission will probably be paid by the seller. Most importantly, your agent will obtain seller disclosures (required by law), and guide you for the necessary home inspections, title work, etc. It is worth every penny to have a professional help you, and it is a small amount compared to most home mortgages. Also, look at it this way: how would you like to work hard on a job and then have the boss say he isn't paying you. It is the same for Realtors. Buyers and sellers often do not realize how much time and money that agents must spend up front before (and if) they see any commission.