A New Settlement Era for the UK and EU
Yesterday, the UK Accelerated Settlement Taskforce (AST) published its final recommendations on implementing T+1 settlement in the UK securities markets. It proposes 11 October 2027 as the go-live date a timeline that is now aligned with guidance from the European Securities and Markets Authority (ESMA), which has also recommended 11 October 2027 as the optimal date for T+1 adoption in the EU.
This shared milestone marks a coordinated push across two of the world’s major financial markets to modernise and streamline post-trade infrastructure.
Why T+1 Demands More Than Just Faster Systems
The shift to T+1 compresses the time between trade execution and final settlement from two days to one. This tighter window leaves far less room for error, delay, or manual intervention.
According to ESMA, “all actors of the financial system will need to work on harmonisation, standardisation, and modernisation to improve settlement efficiency.” This aligns with the UK AST’s view that achieving T+1 will require automation and cross-industry cooperation.
In short: T+1 isn’t just about compliance. It’s about transformation.
Key Operational Focus Areas from the AST Report
The AST’s recommendations identify three critical areas for automation:
- Standard Settlement Instructions (SSIs) YES
- Corporate Actions
- Stock Lending Recalls
The report also underscores the urgency of modernising the CREST network, the UK’s core settlement infrastructure.
For financial institutions in the UK and EU, these priorities should serve as a roadmap. To remain competitive and compliant, firms must reduce reliance on manual processes, eliminate data silos, and improve end-to-end visibility.
How Aqua Global Can Help
At Aqua Global, we understand what’s at stake. With deep experience in financial messaging, reconciliation, and post-trade workflows, our Aquila platform is already helping institutions prepare for the future of settlement.
Here’s how Aquila addresses the most pressing T+1 challenges:
1. Automating Standard Settlement Instructions (SSIs)
Aquila integrates directly with internal and external data sources, validating and applying SSIs automatically. This ensures consistency, reduces risk, and frees up operational resources.
2. Intelligent Messaging and Automation
Aquila handles high-volume messaging across formats including full ISO 20022 support. It’s workflow framework and API’s allows for the automatic consumption, processing and production of all securities settlement messages.
3. Trade Matching and Real-Time Reconciliation
Aquila can match securities messages, including FIN and ISO 20022 formats, with the ability to auto release the trade settlement messages and update core system information on a successful match. Aquila also reconciles securities positions and trade data in real time.
4. Configurable Workflows for Corporate Actions and Lending Recalls
Our modular architecture can support workflow automation for corporate actions and stock lending recalls—two areas highlighted by the AST as requiring urgent automation under T+1.
5. Compatibility with Market Infrastructure Upgrades
Aquila is built to adapt.. Aquila has recently enabled institutions to seamlessly adopt ISO 20022 Swift messages structures for Funds, changes to the Target2 Securites (T2S) and will align with the modernisation of CREST.
Planning for 2027 Starts Now
While 2027 may seem distant, the operational transformation required for T+1 is significant. Institutions that begin now—by identifying process gaps, eliminating manual dependencies, and investing in automation—will not only be prepared for compliance, but also better positioned for long-term efficiency and growth.
Closing Thoughts
T+1 represents a major turning point for post-trade operations in both the UK and the EU. It challenges institutions to act decisively, collaborate widely, and invest intelligently.
At Aqua Global, we’re ready to support that journey. Our mission is to help clients move with confidence through complex transitions like this one—with flexible technology, expert support, and a deep understanding of global financial operations.
Contact us to learn more about how Aquila can support your T+1 strategy.
