The ACH Network is an electronic payment system in the United States that facilitates the transfer of funds between bank accounts. It allows for various types of transactions, including direct deposits, bill payments, and money transfers. The network operates through a batch processing system, which means transactions are collected and processed at specific intervals throughout the day. Established in the 1970s, the ACH Network is governed by the National Automated Clearing House Association (NACHA). It plays a crucial role in the financial system by providing a secure and efficient way to move money, reducing the need for paper checks and manual processing.