How to Use a Real Estate Agent Commission Calculator to Estimate Your Costs Understanding Real Estate Agent Commission What is a realty agent commission? A real-estate agent commission is a fee that is paid to the agent in exchange for their assistance with a transaction. This commission is usually a percent of the final price of the property. In the realty business, it’s common for agents who help buyers and vendors navigate the complexities of buying or selling a house to receive a percentage commission. Real estate agent calculators help individuals estimate the commission they will need to pay for