[6] It represents more than 9,000 financial institutions divided into ten regional payments associations[7] and direct membership.

Nacha is not directly involved in the ACH transactions, but develops rules and standards and provides education, accreditation, and advisory services.

[9] Originally part of the American Bankers Association, Nacha separated in 1985 and hired Bill Moroney as its first Chief Executive Officer.

[15] Nacha wrote and administers the Quest Operating Rules for Electronic Benefits Transfer (EBT) which have been in place since 1996.

[18] Under the administrative simplification provisions of the Affordable Care Act, Nacha was designated by the United States Department of Health & Human Services as the standards development organization (SDO) for healthcare Electronic Funds Transfer (EFT).

The Healthcare Electronic Funds Transfer (EFT) standard supports electronic claim payments and remittance information between health plans and health care providers, accelerating cash flow and simplifying reconciliation for providers.

Under the ACA's administrative simplification framework, health plans are required to pay claims using the standard EFT transaction, whenever requested by healthcare, medical or dental practices.

In 2018, more than 306.7 million ACH EFT payments, valued at $1.59 trillion, were made from health plans to healthcare providers.

[21] On 12 August 2020, Nacha reported that Visa has entered a growing list of collaborators piloting Phixius.

Phixius is a Nacha-built and managed business that uses technologies, structured APIs and rules to allow interoperability in a secure network of linked credentialed service providers (CSPs) for the protected exchange of payment related details.

Nacha Direct Member[24] Nacha Direct Members are Financial Institutions and Payments Associations, and are active participants in educating and advocating for the ACH Network with regulators, legislators, and other stakeholder organizations whose policies affect the payments system.

The Summit serves to provide attendees with the knowledge necessary in ACH compliance and regulations in the payments industry to protect clients and organizations.