Download the ISO 20022-to-ACH Mapping Guide & Tool

Nacha's ISO 20022-to-ACH Mapping Guide & Tool can be used by financial institutions to easily and consistently translate ISO 20022 messages into ACH transactions.

The ISO 20022-to-ACH Mapping Guide & Tool is comprised of eight documents. For each ISO 20022 message, there is a word document that provides background, explanation and examples, and this corresponds to a spreadsheet that provides the detailed data mapping between the ISO 20022 messages and the corresponding ACH transactions. You can download individual documents, or you can download a zip file with all eight documents.

Complete and submit the form to download Nacha's ISO 20022-to-ACH Mapping Guide.