ESMA consults on revised guidelines to support smoother allocations and confirmations under T+1

What Changed

• - ESMA proposes revised Guidelines on standardised procedures and messaging protocols for allocations and confirmations under CSDR Settlement Discipline, specifically to support the transition to a T+1 settlement cycle.
• The guidelines will mandate the use of electronic, standardised communication channels for post‑trade allocations and confirmations, moving away from mixed paper / manual practice to fully electronic flows.
• Firms will be required to use international messaging standards (e.g. ISO‑based protocols) for post‑trade communication, to ensure interoperability and faster straight‑through processing across EU markets.
• The guidelines remove references to non‑electronic and non‑machine‑readable methods, including oral allocations and confirmations, except where there is a temporary technical disruption that prevents electronic communication.
• The revisions are explicitly aligned with ESMA’s Final Report on Amendments to the CSDR RTS on Settlement Discipline, which introduce same‑day timing for allocations and machine‑readable formats for confirmations and instructions.
• ESMA expects the revised guidelines to apply from 7 December 2026, synchronised with the expected application date of the new RTS requirements on allocations and confirmations.

Suggested Considerations

• Map all current allocation and confirmation workflows and identify any use of non‑electronic, non‑standardised or non‑machine‑readable communication (including email attachments, faxes, PDFs, and oral instructions).
• Develop and execute a remediation plan to replace manual or oral allocation and confirmation processes with fully electronic, machine‑readable workflows using recognised international messaging standards.
• Review and update front‑to‑back trade processing systems (OMS, EMS, middle‑office, back‑office, matching engines) to ensure they can generate, receive and process standardised electronic allocation and confirmation messages within same‑day T+1‑compatible timelines.
• Engage with CSDs, custodians, brokers, counterparties and third‑party vendors to confirm their roadmap and readiness for the mandated electronic standards and to align implementation timelines to the 7 December 2026 application date.
• Update contractual documentation with clients and counterparties (including terms of business and service level agreements) to incorporate obligations for electronic, standardised, machine‑readable allocations and confirmations and to remove reliance on manual methods except as contingency.
• Design and document robust contingency and fall‑back procedures for temporary technical disruptions that prevent electronic communication, ensuring these are truly exceptional, time‑limited and appropriately logged and monitored.

Key Dates

Who is Affected