Monitoring return rates for automated clearing house (ACH) transactions is an important element of a bank’s risk mitigation program for its business and third-party clients. Recently, NACHA issued a request for comment (RFC) that addresses proposed changes to return rate thresholds included in the NACHA Operating Rules.

The NACHA Operating Rules currently identify a return rate threshold for unauthorized debit entries of 1 percent. The threshold is intended to reduce unauthorized entries transmitted over the ACH network. The NACHA Operating Rules hold an originating depository financial institution (ODFI) that has an originator or third-party sender with an unauthorized return rate over 1 percent subject to ODFI reporting and possible fines if the rate of returns is not reduced in a timely fashion.

According to the RFC, the unauthorized debit return rate declined due to several risk management efforts—including the 1 percent threshold, established in 2008—from 0.06 percent in 2005 to 0.03 percent in 2012. These reduced numbers demonstrate that the monitoring of return rates by banks and other network participants helps to identify issues and leads to fewer problematic transactions.

This RFC proposes three changes to how the NACHA Operating Rules currently address return rate thresholds.

  • A reduction in the return rate threshold for unauthorized debit entries from 1 percent to 0.5 percent.
  • Establishment of a return rate threshold for data quality debit entries (such as invalid account number) of 3 percent.
  • Implementation of an overall debit return rate threshold of 15 percent.

NACHA had issued an RFC in spring 2011 that proposed changes similar to the first two listed items, but ACH participants did not provide sufficient support then and the changes were not implemented. It seems that the time may now be right. The RFC indicates that the environment for this proposal appears to have changed, with ACH participants expressing interest in looking at new thresholds. And the proposal for an overall debit return threshold stresses the need for banks to focus on their overall return rates in addition to specific return reasons.

Regardless of which thresholds are included in the NACHA Operating Rules, banks should monitor for any increase in returns. They should also understand the underlying cause and remedies that their business or processor customers are implementing. A bank focus on return issues is one element of a robust risk management program that helps to ensure the bank’s origination of high-quality payment transactions.

With this proposal on return rate thresholds, is your institution rethinking its internal policies for return rate monitoring?

Photo of Deborah ShawBy Deborah Shaw, a retail payments risk expert in the Retail Payments Risk Forum at the Atlanta Fed