Fraud risks are a significant driver of transaction fees, especially for merchants who process payments online. Merchant processors will assess your fraud risk exposure on a number of factors, and there are security measures you can put in place to reduce your transaction fees.
The old basic billing and payment system not only took significant time to generate invoices, but due to traditional mailing methods, it also took a great deal of time before the invoice was in the hands of the client.
There are many factors that will determine what kind of fees you are charged by your processor. There are some factors that you can control, such as limiting charge-backs and fraud exposure, and others that you cannot, such as how you accept payments, your industry, and your physical business location.