Hi Mira – It depends on the state and their requirements. The first time you have to take classes and an exam to get your brokers license. For renewal, your state may require additional classes, CE courses, or fees.
Here is an article about the way to become a broker and the cost is covered under the first section. I hope it helps. https://fitsmallbusiness.com/how-to-start-a-real-estate-brokerage/