From Legacy to Leading Edge: A Landmark Payments Migration for a UK Retail Bank

A leading UK high‑street bank made a strategic decision to modernise its payments capability by moving its core payments hub to a newly created, group‑owned third‑party provider. This was a first‑of‑its‑kind migration for a UK high‑street bank. The ambition was clear: build greater resilience, simplify operations and accelerate towards cloud‑ready payments – all while continuing to meet high regulatory expectations and protecting critical customer services.

The scale and stakes were significant. Success would require coordinated delivery across business and technology teams, alignment with the provider, and disciplined governance that offered confidence to regulators and senior stakeholders.

The bank set a bold direction for payments modernisation

The bank knew that moving critical payments services to a third‑party provider introduced delivery, operational and regulatory risks. Without clear decision‑making, consolidated metrics or transparent oversight, the risks of delays, service disruption and challenge from supervisors were material.

To maintain momentum and protect resilience, the bank sought expert guidance to structure the programme, align workstreams and establish a robust approach that would stand up to regulatory scrutiny.

The bank delivered progress that demonstrated both capability and control:

• 7 delivery gates successfully navigated across Faster Payments.
• Programme migrated c.30m monthly payments through new technologies
• End‑to‑end technology roadmap, metrics and controls established
• PRA‑compliant exit‑planning uplift designed and approved

With clearer delivery discipline, stronger controls and a cloud‑ready payments capability, the bank is now better positioned to execute future migrations with confidence – continuing to provide resilient, high‑quality services to its customers.

Building alignment, controls and confidence

The bank established a controlled, repeatable delivery approach to manage a complex payments transformation and third‑party migration, while maintaining regulatory confidence and protecting critical services. This included:

• A gated delivery model with clear entry criteria and critical success measures, providing a consistent way to evidence readiness, track progress and support confident decision‑making across Faster Payments.
• A single, real‑time view of risks, issues and dependencies, consolidating delivery and operational insight into one source of truth and enabling leaders to respond more quickly to emerging risks
• Aligned delivery plans across internal teams and the new provider, reducing integration risk and smoothing execution, including clarified requirements for outbound Faster Payments and gateway adoption and coordinated change across dependent platforms
• A strengthened regulatory posture and operational assurance, with PRA‑compliant exit‑planning arrangements, rigorous testing and live proving embedded to evidence that migrations could be delivered safely without customer impact

Transforming payments to meet future customer and regulatory expectations?

Talk to us about how we can help strengthen payment operations, drive transformation and deliver regulatory confidence. Contact our experts in financial services.