Yes. The credit union makes these decisions. In some instances, they are prescribed by state law. Federal law does not establish the services for which fees may be imposed. Additionally, federal law does not establish a maximum fee amount that credit unions can charge for an IRA transfer.
Credit unions are required to disclose fees when the deposit account is established. Therefore, you may want to review your account agreement with the credit union as well as the current fee schedules.
If you believe that your credit union imposes exorbitant IRA transfer fees, shop around—and purchase your financial services accordingly.