Sellers and Buyers
ACH (Automated Clearing House) is the main network used for E-Payments between seller and buyer. ACH is a network used for electronically moving money between bank accounts. It's run by an organization called Nacha (previously NACHA - National Automated Clearing House Association), and may also be referred to as the ACH network.
Due to the many regulatory requirements levied on businesses, the modern payment processor is usually partnered with merchants through a concept known as software-as-a-service (SaaS). SaaS payment processors offer a single, regulatory-compliant electronic portal that enables a merchant to process single and recurring ACH and cash transactions, process remittances and Web payments. This results in cost reductions and improved transaction processing quality.