2026 US ACH rule changes set to reshape RTP, FedNow and fraud controls
A Finextra Research webinar is set to examine how the 2026 overhaul of US ACH rules could affect real-time payments, fraud prevention and the wider payments infrastructure. The session, titled “2026 US ACH rules: Impact on RTP, FedNow and fraud controls,” is scheduled for Thursday, 9 April 2026, and will bring together industry experts to discuss the implications of the rule changes.
The webinar comes at a time when the US payments system is moving toward more continuous operation and tighter oversight. According to the event briefing, the 2026 ACH shift represents a structural change for the network, moving away from a “commercially reasonable” approach to oversight toward mandatory, risk-based monitoring and 24x7x365 operational expectations.
ACH moves toward always-on expectations
The rule changes are expected to push ACH beyond its traditional batch-processing model and closer to the availability standards associated with real-time payment rails. Financial institutions may need to revisit legacy processing windows, capacity planning and exception-handling procedures as continuous operations become a baseline requirement rather than an exception.
The changes are also likely to influence how institutions approach oversight across multiple payment rails. As monitoring expectations become stricter, real-time systems such as FedNow and RTP are expected to come under greater alignment with the broader obligations applying to ACH. The result could be stronger coordination across ACH, FedNow, RTP and wire transfers, with banks and fintech firms adapting their operating models accordingly.
Data quality, automation and ISO 20022 take centre stage
The webinar briefing highlights the growing importance of ISO 20022, AI-driven monitoring and automation in modern transaction processing. With richer data and more advanced analytics, institutions may increasingly shift from reactive review to proactive risk scoring and automated verification.
Enhanced data quality and cross-rail fraud intelligence are expected to become more important as payment systems become more interconnected. The combination of continuous settlement and automation may also affect how firms manage exposure, authenticate participants and process payments across different rails.
Fraud threats continue to evolve
While the industry prepares for the 2026 rule changes, the threat landscape is also becoming more complex. The event notes that deepfake-enabled social engineering, vendor impersonation, synthetic identities and payroll diversion are among the fraud types expected to grow as attackers exploit automation and always-on payment availability.
Looking further ahead, the webinar will also address quantum-era security risks and the need for longer-term cryptographic resilience. The briefing suggests that modernisation efforts across payment systems will need to balance immediate compliance requirements with future-proofing against emerging security threats.
Reed Luhtanen, Executive Director and CEO of the U.S. Faster Payments Council, is listed as a speaker. Scott Hamilton, Global Payments & Liquidity Expert and Contributing Editor at Finextra, will moderate the discussion.
Industry Analysis
The 2026 ACH rule changes appear set to accelerate the convergence of batch and real-time payments operations in the US. For banks and fintechs, the shift raises the bar on monitoring, fraud detection and infrastructure resilience, while increasing pressure to align operational models across multiple rails. The emphasis on risk-based controls and always-on availability may also push firms to invest more heavily in automation, data quality and cross-channel fraud intelligence. In practical terms, the changes could mark another step toward a more unified, continuously monitored payments ecosystem.
