If you are looking for a comprehensive overview of as a whole, 1. What is ACH?

: The individual or business that starts the transaction (e.g., an employer setting up payroll).

: The bank that receives the transaction and posts it to the recipient's account.

: Money is "pulled" from the payer's account by the receiver (e.g., automatic monthly utility bill payments). 4. Key Security & Compliance Any paper on ACH should address the regulatory environment:

: The central clearing facility (typically the Federal Reserve or The Clearing House ) that sorts and distributes transaction batches.

: The bank that receives the request from the Originator and transmits it to the ACH Operator.

To understand how a paper might cover this topic, you must focus on the primary entities involved:

: The person or business whose account is being credited or debited. 3. Types of ACH Transactions Transactions are generally categorized into two types: