If the seller had a real estate agent then the seller already signed a contract to pay a fixed commission to the buyer's agent when the house is listed. Dependi

If the seller had a real estate agent then the seller already signed a contract to pay a fixed commission to the buyer's agent when the house is listed. Depending on the contract the seller signed, if there's no buyer's agent, usually the seller's agent's gets both the buyers agent's commission and the seller's agent's commission. So you don't usually save money by not having a buyer's agent.