Hailey Windham

As the March 2026 Nacha deadline approaches, financial institutions must shift from passive observation to proactive, risk-based detection. This article explores five essential pillars for compliance, including the move toward real-time visibility, the importance of a defensible operational framework, and why single data signals are no longer sufficient in an era of authorized fraud.

Nacha’s updated ACH Fraud Monitoring Rule introduces new expectations for ODFIs and RDFIs, but it’s not the five-alarm compliance fire some headlines suggest. This post explains why the rule’s intentionally broad language causes anxiety, what “risk-based processes” actually mean in practice, and how community banks and credit unions can build defensible, repeatable ACH monitoring without overspending or overengineering.