Banks’ ISO 20022 E&I readiness varies ahead of 2027

Banks have until 2027 to move exceptions and investigations (E&I) messaging to the ISO 20022 standard. Preparations across the industry vary: some institutions have launched multi-year transformation programs, while others are executing isolated system upgrades focused on near-term needs.

The ISO 20022 change requires banks to send E&I messages with richer, standardized data. Firms need to update message formats, back-office systems, exception workflows and operational processes so that structured fields travel across correspondent chains. Industry participants say structured messages should make it easier to locate issues and reduce manual review and resolution times.

Several banks have begun programs that align payments operations, technology and data governance to support a coordinated migration. Other banks are upgrading individual systems or middleware components without a single enterprise roadmap. Independent upgrades can create mismatches where counterparties support different field sets or interpret message elements in inconsistent ways.

Those mismatches can increase reconciliation work, raise error rates and require more manual intervention when messages pass through multiple correspondent links. Larger banks and institutions with broad correspondent networks face higher coordination costs if partners progress on different timetables.

Readiness shows regional and firm-level variation. Banks that already use ISO 20022 for other payment types tend to be further along in planning and testing. Other banks have not finalized enterprise roadmaps and are still scoping technical and operational changes.

Industry practitioners describe specific measures of practical readiness: agreed field usage across partner networks, validated translation logic between legacy formats and ISO 20022, automated routing of common exception types, and measurable reductions in manual casework. Firms will also need strengthened data governance, end-to-end testing across correspondent links, coordinated cutover plans with partners, operations training and vendor software updates.

A webinar hosted with RedCompass Labs will bring payments and operations leaders to discuss the state of readiness. Panelists include Pratiksha Pathak, SVP and head of payments at RedCompass Labs; Bobi Shields-Farrelly, SVP and head of payments operations at PNC; and Sean Hickey, cash management product manager at Mizuho Bank. Scott Hamilton will moderate the session.

With the 2027 deadline fixed, industry participants are tracking concrete milestones such as consistent message definitions, translation validation, automated exception handling and governance that enforces data quality.