Nationwide Building Society has announced an expanded partnership with Amazon Web Services that will enable the world's largest building society to accelerate innovation and deliver more personalised experiences to its 17 million customers whilst maintaining "industry-leading" security standards.

The agreement centres on AWS cloud-based services, including Amazon Connect, which powers Nationwide's contact centre and branch operations. The technology underpins the building society's recently launched Call Checker service, designed to combat impersonation scams that accounted for 17 per cent of all fraud reported by Nationwide during 2024 and 2025.

Call Checker verifies call authenticity to provide customers with confidence they are speaking to genuine Nationwide colleagues. The service represents one application of the partnership between the mutual and AWS across contact centre and branch operations.

Nationwide has established a common technology foundation on AWS that will adapt to accommodate future requirements across the group, the company said, adding that the platform allows the building society to consolidate and modernise workloads whilst scaling services on demand.

"As we continue our digital transformation, we need cloud technology that can support our ambition to deliver better customer experiences, while keeping safety and security at the forefront," Suresh Viswanathan, group chief operating officer at Nationwide, said. "With AWS, we can better support our frontline colleagues to help improve member experience and deliver better outcomes for over 17 million customers."

The expanded partnership includes colleague training programmes, with Nationwide employees gaining access to AWS learning resources covering cloud and artificial intelligence capabilities. The investment in skills development will support the building society's ability to adopt new technologies for customer and colleague benefit.

Alison Kay, vice president and managing director of AWS UKI, said that by consolidating workloads on AWS, Nationwide can "accelerate innovation, enhance operational resilience, and deliver the digital experiences their members expect—all while maintaining the security and compliance standards that are paramount in financial services."

The agreement positions Nationwide to deploy new capabilities whilst maintaining compliance with financial services regulations. The company noted that the development supports its mutual's strategic priorities of building customer relationships, delivering service across digital and physical channels, and driving operational efficiency.

Separately, Nationwide last week announced it will extend high loan-to-income lending to home movers and remortgage customers, allowing them to borrow up to six times their income. New customers will require minimum annual incomes of £75,000 for sole applicants or £100,000 for joint applications, though existing Nationwide customers moving home in 2026 will face no minimum income requirements.

The building society recorded a 57 per cent increase in first-time buyer mortgages at or above five times income in 2025 compared with 2024. Henry Jordan, group director of mortgages at Nationwide, said the regulatory changes made in 2024 "have been a game changer for first-time buyers" and noted the mutual had seen a five-fold increase in first-time buyers borrowing between 5.5 and six times income over the past year.

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