ACH Network (Nacha)

The ACH Network — governed by Nacha, the National Automated Clearing House Association, since 1974 — is the backbone of electronic funds movement in the United States, processing direct deposits, bill payments, business-to-business payments, and consumer transfers that collectively move tens of trillions of dollars annually. ACH operates through a network of financial institutions connected through clearing houses, principally the Federal Reserve's FedACH system and the Electronic Payments Network operated by The Clearing House. The system processes transactions in batches — historically in just a few settlement windows per business day, though Same Day ACH, introduced in 2016, added faster intraday settlement options.

ACH transactions flow from originators — companies initiating payroll, bill payments, or transfers — through their originating bank (ODFI) to the clearing house, which sorts and delivers each transaction to the receiving bank (RDFI). The receiving bank credits the recipient's account after settlement. This multi-party architecture means that a failure at any layer — the originating bank's ACH processing system, the clearing house's network, or the receiving bank's posting system — can delay or prevent transactions from completing on their expected timeline. Nacha sets the operating rules and schedules for the network, including the cutoff times for same-day ACH and standard next-day ACH submission.

ACH Network problems, when they occur, have broad consequences given how much of American financial infrastructure depends on the system. Payroll direct deposits that were submitted by employers on the correct schedule fail to arrive on payday, leaving employees without expected funds. Mortgage and loan payments that were authorised as ACH debits fail to post, potentially triggering late payment flags. Business-to-business vendor payments that rely on ACH clearing miss contractual due dates. The Federal Reserve's FedACH system and The Clearing House's EPN are highly resilient by design, but maintenance windows, processing delays during peak periods, and rare infrastructure incidents do occur and generate immediate, widespread downstream impact.

Outage.gg tracks ACH Network processing status using real-time community reports from businesses, financial institutions, and consumers affected by payment delays or failures. If a direct deposit has not arrived on its expected date, an ACH payment has failed, or a transfer is stuck in pending, the live status page shows whether there is a broader ACH processing issue.