Fees through a Forex broker will be based on the amount of the transaction and the type of transaction that you are completing. Moving from fund to fund or from Forex account to another Forex account you will incur the largest types of fees, but be sure to read the fine print on the Forex broker site where you intend to do business to be sure. Forex brokers make their money on the fees they bill when helping clients move money, and put money into investments.