1 Minute Read. Is there a primary determiner of income for real estate agents? You bet there is. Some agents in our office earn over $200k each year while others barely scratch by. Why is that? Inside of every agent is a mental gauge of worth. You will not earn more than your personal gauge tells you and you will not earn less either. When agents feel they are making above what their internal worth says, they start to slow down and become complacent. Likewise, they speed up,