ISO 20022 Resource Center

Standardizing Payments

Leveraging ISO 20022 as a Global Messaging Standard

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NACHA is leading efforts to encourage and promote ISO 20022 integration in the U.S. ISO 20022 is a tool that can standardize messages across all payments types, including ACH payments, enabling greater automation and straight-through processing (STP), and reducing payments exceptions and risk. As such, it is important that financial institutions and other Network users understand the benefits of the ISO 20022 standard and its implications for the payments industry.

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NACHA Programs Supporting ISO 20022

  • NACHA's ISO 20022-to-ACH Mapping Guide & Tool: enables financial institutions to support businesses that leverage ISO 20022 by providing standardized guidance to facilitate translation of ISO 20022 pain.001 (credit) and pain.008 (debit) messages into ACH transactions, and by providing standardized guidance for translating ACH reject/return messages to corresponding ISO 20022 payment status and treasury reporting messages (pain.002 and camt.053).​
    • NACHA's ISO 20022 Validator Tool: a complement to NACHA's ISO 20022 Mapping Guide & Tool, the Validator tests conformity of ISO 20022 payment instructions for U.S. ACH file formats
  • NACHA's XML-ACH Remittance (XML-ACH): allows businesses to safely and securely transmit ISO 20022-approved payment remittance information for B2B transactions in a standardized XML format via the ACH Network. 
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Reports & White Papers

  • Introduction to ISO 20022 for U.S. Financial Institutions: A white paper developed by NACHA that sheds light on practices and opportunities of ISO 20022 in the U.S. and globally, and dispels myths surrounding what use of the ISO 20022 standard can and cannot support.
  • ISO 20022 Assessment Report:  A report sponsored by NACHA, The Federal Reserve Bank of New York, The Clearing House Payments Company LLC, and the Accredited Standards Committee X9 Inc., and prepared by KPMG, that assesses the business case for adopting ISO 20022 in the U.S.
  • ISO 20022 Implementation Best Practices: A report outlining ISO 20022 implementation best practices learned from communities that have completed adoption or are in the process of migrating to ISO 20022. 
  • Understanding the ISO 20022 Stand-Alone Remittance Messages: The IFX Forum document provides some in-depth background about the ISO 20022 Stand-alone Remittance messages; why they were developed, how they were developed, the use cases they address and the case for adoption of the messages by industry and financial service providers. 
  • The Drive to Electronic Remittance Exchange in Business-to-Business Payment Automation​: A white paper from CGI presenting comparisons in B2B remittance exchange processes in the U.S. and Europe, spotlighting certain economies, and highlighting recent developments with respect to extended remittance information and its future implications for stakeholders in the financial value chain. 
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Educational Resources

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