T+1 One-Year Countdown Arrives as EU and UK Market Participants Warned to Move Beyond Planning
T+1 One-Year Countdown Arrives as EU and UK Market Participants Warned to Move Beyond Planning #
The one-year countdown to mandatory T+1 settlement began this week, with the 11 October 2027 deadline now twelve months away for markets in Europe, the United Kingdom, and Switzerland. Senior figures are warning that readiness across the industry is uneven and that firms still at the planning stage risk being caught short.
The simultaneous move to next-day settlement across the three jurisdictions is intended to reduce cross-border fragmentation, but it raises operational demands for institutions trading across more than one market. Andrew Douglas, chair of the UK Accelerated Settlement Taskforce, called the one-year mark a “wake-up call” for firms still planning rather than acting. He wrote that the next twelve months must be spent implementing, testing, and operating confidently within the new timetable.
Douglas singled out manual processes as the central risk. Firms must identify every manual step in their settlement chain, determine whether it fits within a compressed T+1 window, and automate those that do not. Failure to do so, he argued, will produce higher settlement failure rates, elevated exception-management costs, additional liquidity and funding pressures, FX complications, and reputational damage.
The European Securities and Markets Authority has issued parallel warnings. In a July statement, ESMA designated 2026 as a critical preparation year and set an intermediate deadline of 7 December 2026 by which firms must have overhauled allocation and confirmation processes, with same-day electronic processing required as a default. The full T+1 switch follows on 11 October 2027.
Practitioners across the industry described a similar picture. Cian Fernando, chief executive of Aqua Global, said readiness remains patchy and that many banks are still running legacy infrastructure incapable of settling trades quickly enough. He warned that institutions delaying the shift to automated handling will face rushed transformation programmes, rising costs, and increased regulatory scrutiny. James Maxfield, chief client officer at Duco, said that despite one year appearing ample, major challenges remain to be addressed and tested before the deadline. He pointed to exception management as an area needing substantially greater attention during the remaining window.
Richard Baker, chief executive of Tokenovate, said fragmented data and manual hand-offs, already problematic under the current T+2 cycle, will become far more acute when firms have significantly less time to resolve them. ESMA has also warned that insufficient preparedness could deter counterparties from trading with unprepared institutions, as they seek to avoid the operational risk and settlement discipline penalties that late settlement will carry under the new regime.
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