Automated Clearing House (ACH) networks serve as the primary retail infrastructure for processing high-volume, low-value electronic payments, such as direct deposit payrolls, vendor distributions, and consumer recurring bills. [1, 2, 3]

Unlike wholesale RTGS networks that clear transactions individually in real time, ACH platforms use Batch Processing Frameworks: [1]

Originating Bank groups instructions -> Uploads batch file to ACH Hub -> System computes net positions at scheduled intervals -> Settles net balances across central bank reserves

This batching model reduces data processing overhead and lowers transaction fees, but introduces settlement delays because transactions clear during specific processing windows rather than instantly, requiring careful management of timing risks.