T+1 Settlement Is Coming: How UK and EU Financial Institutions Can Prepare Now

Key challenges

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. 

The UK Accelerated Settlement Taskforce (AST) and the European Securities and Markets Authority (ESMA) has recommended 11th October 2027 for the optimal date for T+1 adoption.

The AST’s recommendations identify three critical areas for automation: 

  • Standard Settlement Instructions (SSIs) YES 
  • Corporate Actions  
  • Stock Lending Recalls

For financial institutions in the UK and EU, these priorities should serve as a roadmap.

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: 

01

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. 

02

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. 

03

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.  

04

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. 

05

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. 

Aqua Global

Reduction of risk through faster exception handling  
Aquila is designed for seamless compatibility with evolving market infrastructure standards.

It has recently enabled institutions to adopt ISO 20022 Swift message structures for funds, adapt to changes in Target2-Securities (T2S), and will support alignment with the upcoming modernisation of CREST, ensuring your operations remain compliant, connected, and future-ready. 

Client Testimonials

We are customer-driven and are proud of the outstanding levels of support that we provide. Our solutions are intuitive and empower people to perform their work more efficiently. Read real client comments below.

Get in touch

Explore our comprehensive suite of solutions designed to streamline your financial operations.

Frequently Asked Questions related to the T+1 settlement

What is T+1 settlement?

T+1 settlement means a securities trade settles one business day after the trade date rather than two. Compressing the cycle reduces counterparty risk but leaves far less room for error, delay or manual intervention.

T+1 reduces market risk exposure, improves liquidity management and brings settlement into line with modern automated trading. It also raises the bar on straight through processing, since there is little time to fix problems.

The UK Accelerated Settlement Taskforce and the European Securities and Markets Authority have recommended 11 October 2027 as the target date for T+1 adoption. That timeline makes automation of settlement workflows a priority well before the date.

The main challenges are compressed reconciliation timelines, heavier pressure on exception handling, cross border coordination and a reliance on high straight through processing rates. Manual workflows become far more exposed under the shorter deadline.

What are the biggest risks of T+1?

The biggest risks are more settlement fails, higher exception volumes, liquidity pressure and less time to correct data errors. The areas highlighted for urgent automation are standard settlement instructions, corporate actions and stock lending recalls.

Banks can prepare by automating reconciliation and standard settlement instructions, speeding up trade matching, adding real time monitoring and making sure messaging supports the shorter cycle. Aquila already helps institutions automate these areas ahead of the deadline.

No, T+1 does not necessarily require replacing the core, but it does require stronger automation, better integration and faster reconciliation. Aquila delivers these as a layer alongside the existing systems.

Cross border trades face extra complexity from time zone differences, funding coordination and multiple market infrastructures. Automation and early data validation are critical to preventing settlement delays across jurisdictions.