Credit Card Processing allows your business to grow by offering the customer flexibility regarding payment options. There are several issues to consider and steps to take when setting up a credit card processing system for your retail or internet business. First you will need to to set up a merchant account via a merchant account service. Such services act as intermediaries between you and the credit card companies. Then if you are a retail business you will need to purchase a processing terminal through which the credit or debit cards will be physically swiped. Such terminals can cost anywhere from $100-$1000 and can be purchased through merchant account services or independently. Finally, you will need to be sure that your POS (Point of Sale) system is properly installed to allow interaction with the credit card terminal. User manuals or your merchant account service can usually help with this.