It all depends on what the document says. An unchanged Illinois statutory power of attorney for property says that the agent is entitled to "reasonable compensation" for his services. What is "reasonable" depends on many factors, including actual time spent, nature of the work, skill of the agent, what the agent if foregoing, etc. What I would usually recommend is to keep diligent track of all time spent and then apply a reasonable hourly rate to that. Remember that any compensation is taxable income to the agent.