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T+1 Implementation Guide for European Markets

Article  •  February 19, 2026
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KEY HIGHLIGHTS

  • This guide outlines the critical steps and considerations for financial institutions implementing T+1 settlement across European markets including the EU UK and Switzerland
  • The October 2027 T+1 transition is a significant industry shift impacting operational efficiency client readiness and liquidity management requiring immediate strategic adaptation
  • Firms must proactively plan and invest now to meet the October 2027 T+1 deadlines optimize processing systems and adapt to evolving market infrastructure
     

As the October 2027 transition date for T+1 settlement approaches, it's crucial to be well-prepared.

This guide summarizes key insights and provides a practical view of the questions you need to be asking at various levels—from foundational considerations and regional specificities to trade-cycle implications. It incorporates real-time benchmarking from Citi, the EU T+1 Industry Committee, the UK Accelerated Settlement Task Force, and the Value Exchange, offering valuable insights to help you build robust project plans for 2026 and 2027.

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