Banks split on ISO 20022 E&I readiness ahead of 2027 deadline

Banks and payments specialists are divided over readiness for ISO 20022 exceptions and investigations (E&I) changes, with a 2027 deadline on the calendar. Some institutions have launched multi-year transformation programmes; others are taking a phased approach made up of platform-level fixes.

Payments operations, technology and data governance teams must coordinate to migrate E&I workflows to the ISO 20022 structured message format. Institutions that have started strategic programmes are aligning teams and systems to support richer data fields and to reduce manual handling of exceptions.

Banks that favour a phased approach are treating ISO 20022 upgrades as discrete projects on individual platforms rather than as part of a single enterprise roadmap. Vendors and internal teams in these firms are sequencing changes based on platform risk and budget cycles.

Supporters expect the structured data in ISO 20022 to make it easier to identify issues across correspondent networks, reduce manual interventions and shorten resolution times once implementations are mature. Those expectations are tied to the consistency and completeness of data that flows between counterparties.

Market observers point to interoperability risks if banks or vendors adopt different interpretations of the standard. Independent upgrades can lead to duplicated effort, integration mismatches and higher operational costs when connections to correspondent banks are tested.

Some institutions are responding by creating enterprise-wide roadmaps that include formal data governance and end-to-end testing with correspondent and clearing partners. These roadmaps commonly cover message mapping, exception handling workflows and testing plans tied to counterparty readiness.

Perceptions of readiness vary by region and by institution size. Large global banks and some market infrastructures have invested in end-to-end planning, while smaller banks and those earlier in digital transformation are still defining requirements and sequencing upgrades.

A webinar organized with RedCompass Labs will examine whether banks are ready for the ISO 20022 E&I changes. The panel will include Pratiksha Pathak, head of payments at RedCompass Labs; Bobi Shields-Farrelly, senior vice president and head of payments operations at PNC; Sean Hickey, cash management product manager at Mizuho Bank; and Scott Hamilton, global payments and liquidity expert, who will moderate.

Background on the standard: ISO 20022 sets a common, structured format for payment messages and carries richer data elements than many legacy formats. Supporters say the standard can improve straight-through processing rates and make exception handling more automated. Critics warn that migration complexity and uneven uptake could cause short-term disruption in correspondent banking relationships.

As the 2027 deadline approaches, banks face decisions about investment timing, coordination with counterparties and vendor roadmaps. Industry participants recommend aligning people, processes and data governance to test end-to-end flows and to limit operational disruption during migration.