Flagstone, the London-based cash deposit platform with over £20 billion in assets under administration, has made US dollar and euro business savings accounts available to its UK SME client base. The launch, announced on 13 August 2026, extends a product range that previously focused on sterling, giving businesses a single platform through which to manage GBP, USD and EUR cash holdings simultaneously.
Bank partners providing the new accounts include National Bank of Egypt and IsBank. As of 12 August 2026, available terms run from one month to seven years, with a top rate of 3.83% AER. All accounts are held with UK-licensed, FSCS-authorised institutions, meaning the same depositor protection ceiling applies to foreign currency balances as to sterling savings already on the platform.
The problem Flagstone is solving
The underlying commercial pain point is well documented in UK SME finance. Businesses that transact internationally tend to accumulate working cash in multiple currencies, which they typically hold across separate banking relationships. Each relationship carries its own onboarding, reporting and treasury overhead. The operational burden often means foreign currency cash sits idle in low or zero-interest current accounts rather than being actively managed for yield.
Flagstone’s proposition is consolidation: one login, one reporting view, one spread-and-stagger mechanism for optimising deposits across multiple institutions, applied now to three currencies rather than one. Katie Horne, bank partnerships manager at Flagstone, said the company had been “acutely aware” that single-currency coverage was only part of the story for business clients, adding that the average Flagstone business user already manages six savings accounts on the platform at any given time.
The company’s own market analysis, drawn from publicly available data and a survey of 500 senior SME decision-makers, estimates that roughly one in five UK SMEs, equivalent to approximately 1.05 million businesses, holds some portion of cash in foreign currencies. Of that cohort, 72% hold US dollars and 65% hold euros.
Market context and competitive positioning
The broader cash management technology market has seen sustained interest from both specialist platforms and incumbent treasury providers, particularly since the rate-rising cycle of 2022 to 2024 made yield on deposits materially relevant again. In a higher-for-longer rate environment, the difference between an active and a passive approach to deposit placement became measurable in basis points, and platforms that aggregated access to multiple banks found a receptive audience among treasurers and finance directors.
Flagstone claims the title of UK’s largest savings platform by number of banks and accounts on panel, a metric it defines specifically to distinguish itself from larger assets-under-management rivals. The multi-currency extension reinforces that differentiation: aggregation breadth, rather than balance-sheet depth, is the stated competitive advantage. Whether that advantage is durable depends on how quickly incumbent banks and competing platforms respond with comparable consolidation tooling, and on whether the FSCS protection wrapper, which Flagstone emphasises, remains a meaningful differentiator as business clients grow more sophisticated about deposit-guarantee limits.
From a regulatory standpoint, Flagstone operates under FCA authorisation as a payment services provider rather than as a bank, which shapes both its capital obligations and the nature of the protection it can offer clients. The FSCS eligibility on its partner banks’ accounts is a function of those banks’ own authorisation, not Flagstone’s. That distinction matters for SME finance directors conducting due diligence, and the company’s documentation will need to make the chain of protection clear as it brings less financially sophisticated SME clients onto the platform.
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