What the future path holds for challenger banks in 2026

Challenger banks: A changing segment

Over the past few years, the challenger, specialist and digital banking segment has undergone a notable reshaping, and nowhere more so than within the challenger banks cohort. Originally established to disrupt the mainstream lending market, many challenger banks have since recalibrated. Some have been acquired by larger incumbents, whilst others have pivoted their business models towards more defined niches, such as commercial lending and specialist mortgages.
 

The macroeconomic backdrop for UK financial services remains dynamic. As economic growth moderates,¹ pressure will continue building on net interest margins, loan growth and asset quality. For a segment that benefitted from rapid balance sheet growth to drive performance in its early years, this creates a more demanding operating environment. The combination of heightened competition and economic headwinds means that challenger banks face a very different landscape from the one that fuelled growth at the start of their journeys.
 

Consequently, we are seeing increasing momentum in inorganic activity, with this segment of banks pursuing growth through acquisition, whether buying entire institutions, targeted loan books or specific capabilities. For many, this offers a faster route to scale, diversification and improved returns than organic growth alone, particularly in a more competitive and lower-growth environment. As a result, consolidation and capability-led transactions are becoming defining features of the segment’s evolution.

Three key actions to generate growth for challenger banks

Findings from our EY challenger and specialist banks database suggest that simply pursuing volume is unlikely to deliver the future growth institutions are seeking. Instead, a sharper focus on cost efficiency, capital optimisation and diversification can create a more resilient foundation. During 2026, the industry has an opportunity to transition from margin protection to rethinking long‑term strategy. We suggest three key actions for challenger bank leaders:

1. Cost efficiency

Challenger banks can unlock efficiencies by reshaping their cost base. Investment in emerging technology, particularly Artificial Intelligence (AI), could rationalise processes, enhance customer interactions, reduce errors and fraud and improve regulatory compliance.

Organisational redesign and simplification can help to remove duplication and create a more seamless and personalised customer experience. Through selective offshoring and specialist third‑party outsourcing, banks can lower costs, scale up or down with ease and access specialised talent and technologies.
 

2. Capital optimisation

From 2027, all banks operating in the segment will have to calculate their capital requirements under either the Basle 3.1 or Small Domestic Deposit Takers (SDDT) regimes. Management teams will have to carefully navigate the transition into these new regimes and continue to assess the impact they might have on their bank’s strategy.

Moving forward, to further optimise capital, banks can explore achieving Advanced Internal Rating-Based (AIRB) accreditation, or potentially an updated Foundation Internal Ratings-Based approach (FIRB) approach which is in the early stages of a consultation process.

During 2025, we saw an improvement in the valuation multiples being achieved in a number of transactions, as well as the re-opening of public markets to specialist banks. Continued, consistent delivery should further support a reduction in the cost of capital for the segment as a whole.
 

3. Diversification

Whilst increasingly competitive, there remains a huge addressable market for challenger banks, spread across numerous customer and product segments. Disciplined expansion into new areas and becoming a ‘multi-specialist’ can deliver further growth beyond existing areas.

A further option is selective acquisitions to enhance their portfolios, supported by an improving mergers and acquisitions (M&A) outlook, with more predictable valuations, a stabilising macro environment and a longer-term investor base.