Seed trust
Negotiate your agent's commission before work starts and honour it after the transaction has been completed.
Commission rates are not fixed; there is no minimum nor maximum percentage, nor “standard market rate”. Also, CEA does not fix nor provide any guidelines on commission amounts.
You are free to negotiate the amount and components of the fees and expenses, as well as terms with the agent before he starts work. Check if GST is included too. Only GST-registered property agencies are allowed to charge and collect GST.
After the transaction has been completed, you should pay the commission to the property agency, not the agent.