The US shift to T+1 settlement in May 2024 revealed significant operational challenges which Europeans firms must learn from as they prepare to meet their own October 2027 deadline.
While US firms successfully implemented T+1 from a compliance perspective, many struggled operationally. Operations teams relied heavily on manual workarounds and extended exception management processes into overnight shifts. Fragmented reconciliation infrastructures could not support the compressed timelines.
The lesson for Europe is clear: firms must address core data and reconciliation infrastructure instead of treating T+1 as a standalone compliance project.
Europe’s market complexity
The European market presents additional challenges compared to the US implementation.
Europe operates with multiple central securities depositories, time zones, currencies and regulatory frameworks. Unlike the dollar-denominated US market, European settlements involve multiple currencies without a single reference point. Language differences and local settlement conventions add further complexity.
Cross-border trades and multi-entity operational models create more reconciliation points, more potential breaks and tighter cut-offs across interconnected systems. Europe’s settlement infrastructure is more interdependent, meaning operational issues in one market can cascade into others.
However, European firms benefit from trading a generally less dispersed range of asset classes than their US counterparts. The complexity is primarily geographic and structural rather than product driven.
Why manual processes won’t survive T+1
Financial institutions preparing for T+1 encounter several recurring operational issues.
Data ingestion delays and inconsistencies remain the most significant obstacle. Information arrives late, in incomplete or inconsistent formats. Different systems use a variety of conventions – what one platform identifies as a trade ID may be labelled differently elsewhere. This misalignment creates reconciliation breaks before the matching process even begins.
Manual exception management cannot scale under T+1 pressure. Firms that rely on overnight batch processing will likely lack the time needed to identify and resolve breaks within the compressed settlement window. Many organisations also lack visibility into recurring break patterns until issues have already caused settlement failures.
UK regulators have consistently emphasised the need for automation in preparation for T+1. The Accelerated Settlement Taskforce referenced early research from the US post-implementation period, which identified insufficient automation as a primary cause of operational difficulties.
The FCA’s guidance is clear: firms should not plan to address T+1 requirements through increased headcount alone.
Preparing for October 2027
The good news is that European firms have time before the October 2027 deadline, but this window should be used effectively to address fundamental operational infrastructure.
End-to-end automation is essential. Manual intervention points create bottlenecks that become critical under T+1 timelines. Reconciliation processes need to operate continuously rather than in batch cycles, with real-time processing that identifies breaks early enough to allow for resolution. Old methods such as end-of-day processing compresses resolution windows and increases operational pressure exactly when firms have the least capacity to manage it.
Similarly, seamless system connectivity is not optional. Order management systems, portfolio management systems and external broker or custodian feeds need to communicate without manual intervention, with real-time trade confirmation and settlement status flowing automatically across the entire settlement chain.
Operational visibility is equally important. Firms need dashboards and analytics that track break types, exception ageing, resolution times and recurring issues. Without clear visibility into problem areas, systematic improvement is not possible.
Ultimately, firms should frame T+1 as operational transformation rather than a compliance exercise. The US experience demonstrates that meeting the regulatory deadline without addressing underlying infrastructure leads to ongoing operational strain.
The October 2027 deadline is fixed. Those that use T+1 as an opportunity to modernise infrastructure will be better positioned for long-term efficiency and resilience in an environment where settlement cycles will continue to compress.
