Payment Gateways make it possible for your customers to use credit cards to different payment gateways. Therefore, it is a piece of software that works as a go-between for your web site and Merchant Processors. Through it, you are allowed to process many types of payments. Your business or organization needs a payment gateway if you accept (or want to accept) credit card payments online or on mobile. That is why you may think of it as the secure technology between your business and your customer.