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ACH Rule Changes

The ​Nacha Operating Rules are the foundation for every ACH payment. By defining the roles and responsibilities of financial institutions and establishing clear guidelines for each Network participant, the Rules ensure that millions of payments occur smoothly and easily each day. As ACH payment requirements evolve, we can help you learn about key changes to ACH payments so you can be prepared for what’s next.

These following are a brief summary of changes but are not a replacement for Rules, which are subject to change.

MARCH 20, 2026

RISK MANAGEMENT TOPICS – (Fraud Monitoring Phase 1) – These Rule amendments related to monitoring for fraud become effective on March 20, 2026 and are part of a larger Risk Management package intended to reduce the incidence of successful fraud attempts and improve the recovery of funds after frauds have occurred.

Nacha Update

 

MARCH 20, 2026

RISK MANAGEMENT TOPICS – Company Entry Descriptions – These two Rule amendments on Company Entry Descriptions become effective on March 20, 2026 and are part of a larger Risk Management package intended to reduce the incidence of successful fraud attempts and improve the recovery of funds after frauds have occurred.

Nacha Update

MINOR RULES TOPICS – These changes will amend the Nacha Operating Rules to address a variety of minor issues and became effective June 21, 2024.

Nacha Update

 

RISK MANAGEMENT TOPICS – These Rule amendments became effective on Oct 1, 2024 and are part of a larger Risk Management package intended to reduce the incidence of successful fraud attempts and improve the recovery of funds after frauds have occurred

Nacha Update

March 17, 2023

The Micro-Entry Rule defines and standardizes practice and formatting of Micro-Entries, which are used by some ACH Originators as a method of account validation.

  • Originators of Micro-Entries will be required to use commercially reasonable fraud detection, including the monitoring of Micro-Entry forward and return volumes

 

Nacha Update

March 18, 2022

INCREASING THE SAME DAY ACH DOLLAR LIMIT

Increasing the dollar limit has been a frequently asked for change by ACH end-users. Most recently, a summer 2020 survey of corporate ACH end-users resulted in recommendations for Same Day ACH:

  • Increase or remove dollar limits
  • Expand processing hours and days

The dollar limit increase in March 2020 had an immediate impact on the use of Same Day ACH

  • The average amount of a Same Day ACH payment increased by 46% from February to April 2020
  • Overall Same Day ACH dollar volume increased by 86% in 2020

 

Nacha Update

 

June 30, 2022

SUPPLEMENTING DATA SECURITY REQUIREMENTS (PHASE 2)

In response to requests from some covered parties in 2020 for additional time to come into compliance with the Rule requirements, Nacha extended each of the two effective dates by one year; Phase 1 of the Rule, which applies to ACH Originators and Third-Parties with more than 6 million ACH payments annually, became effective on June 30, 2021, and Phase 2 of the Rule, which applies to ACH Originators and Third-Parties with more than 2 million ACH payments annually, became effective on June 30, 2022.

This effective date was affirmed in ACH Operations Bulletin #7-2020. Nacha will not enforce this rule for an additional period of one year from the effective date with respect to covered entities that are working in good faith toward compliance, but that require additional time to implement solutions. This applies to both phases of this rule. Nacha strongly encourages all such covered entities to work towards compliance as soon as possible.

Nacha Update

 

SEPTEMBER 16, 2022

This Rule will define and standardize practices and formatting of Micro-Entries, which are used by some ACH Originators as a method of account validation.

Nacha Update

SEPTEMBER 30, 2022

The overarching purpose of these Rules is to further clarify the roles and responsibilities of Third-Party Senders (TPS) in the ACH Network by; Addressing the existing practice of Nested Third-Party Sender relationships, and; Making explicit and clarifying the requirement that a TPS conduct a Risk Assessment. The two Rules became effective September 30, 2022, with a 6-month grace period for certain aspects of each rule.

Nacha Update

 

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