For mid-market firms operating across the UK, EU and UAE, the cost of moving money between currencies has become a board-level issue. Traditional correspondent banking routes often bundle conversion spreads, intermediary fees and receiving charges into a single opaque line item. In response, a growing number of finance teams are assembling what might be called a multi-currency account stack: a combination of local IBANs, virtual accounts and digital wallets that together reduce the number of times money is converted and the cost of each conversion.
This explainer outlines the components of that stack, how they are being deployed across the three corridors, and the commercial and operational trade-offs involved.
What is a multi-currency account stack?
A multi-currency account stack is not a single product. It is a deliberate arrangement of accounts and payment rails that allows a firm to receive, hold and pay in multiple currencies without forcing every transaction through a single home-currency conversion.
The typical components are:
- Local IBANs: A bank account with a local sort code and account number (or IBAN) in the country where the firm operates or receives payments. This allows the firm to receive domestic payments via local clearing systems, avoiding cross-border fees and intermediary charges.
- Virtual accounts: Sub-accounts linked to a master account, each with its own reference or IBAN. These are used to segregate funds for specific clients, projects or entities without opening separate legal bank accounts. They are particularly useful for firms that need to collect payments from many counterparties in the same currency.
- Local wallets: Digital or e-money accounts that hold a specific currency balance, often provided by fintechs or payment platforms. Wallets can be used to pay local suppliers or receive payments from local customers, again avoiding conversion where possible.
The stack is designed to keep money in the currency in which it is earned or spent for as long as possible, and to convert only when necessary – and then at the most competitive rate available.
Why the UK-EU-UAE corridor is a test case
The UK, EU and UAE represent a demanding set of corridors for mid-market firms. The UK and EU share a time zone and a dense trade relationship, but the UK is outside the Single Euro Payments Area (SEPA) for euro clearing. That means a UK firm receiving euros from a German client may face a cross-border fee if it uses a standard UK bank account. A local IBAN in the EU, however, allows the payment to clear through SEPA as a domestic transfer, often at zero or minimal cost.
The UAE adds a different layer. The dirham is pegged to the US dollar, so conversion between AED and USD is stable, but conversion between AED and GBP or EUR involves a spread. Moreover, the UAE has its own local clearing system (UAEFTS) and a growing number of digital wallets, but many international banks still route UAE payments through correspondent banks in New York or London, adding time and cost.
For a firm that buys from UK suppliers, sells to EU customers and has a UAE subsidiary, the naive approach is to convert all incoming EUR to GBP, then convert GBP to AED for local expenses. Each conversion incurs a spread, and each cross-border transfer may incur a fee. A multi-currency stack can reduce the number of conversions to one – or even zero if the firm can match income and expenditure in the same currency.
How firms are structuring the stack
In practice, mid-market firms are using three common structures, depending on their cash flow patterns.
1. The hub-and-spoke model
A UK parent company holds a master GBP account with a bank that offers multi-currency accounts. The bank provides local IBANs in the EU (often via a partner bank or a licensed e-money institution) and a local AED account in the UAE. The firm instructs its EU customers to pay into the EU IBAN, and its UAE suppliers to be paid from the AED account. The master account holds the balances in each currency, and the firm only converts when it needs to repatriate profits or pay a supplier in a third currency.
This model is popular because it centralises treasury management while giving the firm local payment capabilities. The cost saving comes from avoiding conversion on every transaction: instead of converting EUR to GBP and then GBP to AED, the firm only converts the net surplus or deficit.
2. The virtual account overlay
Some firms use virtual accounts to manage collections without opening multiple legal entities. For example, a UK firm with a large number of EU clients might open a single EUR account with a fintech provider and then create virtual sub-accounts for each client. Each sub-account has a unique IBAN, so the firm can reconcile payments automatically. The firm can also use virtual accounts to segregate VAT or other tax liabilities, which is useful in the UAE where VAT registration is mandatory for many businesses.
The commercial benefit is operational efficiency: less manual reconciliation, faster payment matching and lower banking fees compared to opening multiple physical accounts. The risk is that virtual accounts are not legal accounts – they are ledger entries – so the firm must ensure the provider is properly regulated and that client funds are safeguarded.
3. The wallet-first approach
For firms with high volumes of small payments, digital wallets are becoming a viable alternative to traditional bank accounts. A wallet provider holds a balance in a specific currency and allows the firm to make payments via local rails, often at lower cost than a bank transfer. For example, a UAE-based firm paying freelance workers in the UK might use a GBP wallet to pay via Faster Payments, avoiding the need for a full UK bank account.
The trade-off is that wallets are not banks. They may not offer overdrafts, and they may not be covered by deposit insurance. Firms must assess the credit risk of the wallet provider and the regulatory regime in which it operates.
Commercial impact: where the savings come from
Reducing conversion costs is the primary driver, but the savings are not always obvious. The main levers are:
- Fewer conversions: Each conversion carries a spread, typically 0.5% to 2% for mid-market firms, depending on the currency pair and the provider. By matching income and expenditure in the same currency, a firm can cut the number of conversions from two to one, or even to zero.
- Lower transfer fees: Local clearing (SEPA, Faster Payments, UAEFTS) is often free or costs a few pence, whereas cross-border transfers can cost £10-£30 per transaction plus intermediary charges.
- Better exchange rates: Multi-currency accounts often give access to interbank or near-interbank rates, especially when the firm converts larger amounts. A 1% improvement on a £1m annual conversion is £10,000 – a meaningful saving for a mid-market firm.
- Reduced FX volatility risk: Holding balances in the currency of expenditure reduces the risk of adverse rate movements between the time a sale is made and the time a supplier is paid.
However, the savings are not automatic. Firms must compare the fees charged by the multi-currency provider against the savings. Some providers charge a monthly account fee, a per-transaction fee, or a wider spread on conversions. The stack only makes sense if the total cost is lower than the traditional route.
Risks and unknowns
There are several risks that finance teams should weigh before adopting a multi-currency stack.
- Regulatory risk: The provider may be regulated in one jurisdiction but not in another. A UK firm using an EU e-money institution must ensure that the provider is authorised by the relevant national regulator and that client funds are safeguarded in line with the E-Money Directive. In the UAE, the regulatory landscape is evolving, with the Central Bank of the UAE issuing new payment token regulations, but the rules for digital wallets are still maturing.
- Counterparty risk: If the provider fails, the firm may lose access to its funds. Unlike bank deposits, e-money balances are not covered by deposit insurance schemes in most jurisdictions. Firms should check the provider's safeguarding arrangements and consider holding only operational balances, not large reserves.
- Operational complexity: Managing multiple accounts and currencies requires robust treasury processes. Firms need to monitor balances, forecast cash flows and ensure that payments are routed through the correct account. This can be a burden for small finance teams.
- Hidden fees: Some providers advertise low conversion spreads but charge a margin on the exchange rate or a fee for receiving payments. Firms should read the fee schedule carefully and test the total cost with a sample transaction.
FY Outlook
The trend towards multi-currency account stacks is likely to accelerate as more fintechs and banks offer integrated solutions. The UK's departure from the EU has made local IBANs more valuable for UK firms trading with Europe, and the UAE's push to become a financial hub is attracting more providers offering AED accounts.
We expect to see more consolidation in the market, with banks partnering with fintechs to offer multi-currency accounts as a standard business product. We also expect regulators to tighten oversight of e-money institutions and digital wallets, particularly in the UAE, as the volume of cross-border payments grows.
For mid-market firms, the key is to treat the account stack as a strategic decision, not a tactical one. That means modelling the total cost of ownership, including fees, spreads and operational overhead, and reviewing the structure regularly as the business grows or as corridors change.
Conclusion
A multi-currency account stack can deliver meaningful cost savings for mid-market firms operating across the UK, EU and UAE. By combining local IBANs, virtual accounts and wallets, firms can reduce the number of conversions, lower transfer fees and gain better exchange rates. But the stack is not a silver bullet. It requires careful provider selection, robust treasury processes and an awareness of regulatory and counterparty risks.
Firms that approach it with discipline – and with a clear view of their cash flow patterns – are likely to find that the savings outweigh the complexity. Those that adopt it without due diligence may find that the hidden costs erode the benefits.
As the market matures, we expect the multi-currency account stack to become a standard part of the mid-market treasurer's toolkit, not a niche innovation.
Why It Matters
For mid-market firms with cross-border operations, FX conversion and transfer fees can erode margins by 1-3% annually. A multi-currency account stack directly addresses this by reducing the number of conversions and using local clearing rails. Understanding how to structure these accounts is now a competitive necessity, not a treasury nicety.
