From FX execution to FX exposure

For most SMEs — and for a long time — FX risk meant one thing: the cost of converting money.

Historically, small businesses and retail clients were paying extraordinarily high FX conversion margins compared to large corporates or institutional clients. In some cases, the difference was not a few basis points, but multiples — sometimes tens, even close to a hundred times more for the same underlying currency pair. That gap was only loosely justified by scale or wholesale access. In practice, it reflected two structural realities: clients could not easily switch banks, and there were very few credible alternatives.

That world has largely changed.

Over the past decade, a new generation of fintechs has radically improved FX execution for SMEs and individuals. By accessing wholesale pricing and rebuilding the payment stack, firms such as Wise and Revolut (among others) forced a long‑overdue compression in FX conversion margins. Execution became faster, more transparent, and materially cheaper. Traditional banks, meanwhile, found it difficult to match these reductions without dismantling a highly profitable revenue line built into their existing client base.

This shift has been unequivocally positive. FX conversion costs were the most visible and painful problem for SMEs — and solving them was the right place to start.

But it also created a subtle distortion.

As execution costs fell, attention remained anchored on the moment of conversion, even though for most SMEs that is not where the dominant FX risk sits.

When conversion margins were 2–3%, a 4–5% FX move over a few weeks was often viewed as secondary; today, with execution costs closer to 0.1–0.3%, the exposure created by currency movements has become economically dominant.

FX risk does not begin at conversion. It begins much earlier — when value is agreed.

The moment an invoice is issued, received, or even negotiated in a foreign currency, an economic exposure is created. From that point until settlement, the currency amount is fixed, but its value in the SME's home currency is not. Everything in between is exposure.

That exposure is long‑lived by SME standards. Close to 40% of SMEs report invoice payment terms of 60 days or more. During that period, the FX exposure sits entirely on the SME's balance sheet and cash flows, with no buffer, protection, or risk transfer in place — often without being recognised as such.

Historically, that position has been far from benign.

Over the past two decades, three‑month GBP moves of 5–10% have been routine during periods of stress — not exceptional. During the 2008 financial crisis, GBP/USD fell more than 21% in under three months. Following the Brexit referendum, GBP/EUR dropped approximately 11% in the two weeks after the vote. In March 2020, as COVID‑19 disrupted global markets, GBP/USD fell close to 10%. Even outside crisis regimes, policy shocks — such as tariff announcements — have generated multi‑percent FX moves over typical SME settlement horizons.

For a large corporate treasury, these moves are absorbed, netted, or hedged systematically. For an SME operating on single‑digit margins, they are outcome‑defining.

The critical point for PSPs is this: by the time a payment is executed, the FX risk has already played out.

Faster rails, better pricing, and real‑time settlement improve execution efficiency, but they do not address the exposure created between economic agreement and cash movement. FX conversion crystallises the outcome — it does not manage the risk.

This explains a persistent paradox in SME payments:

• FX execution has become cheaper and more transparent
• Payment infrastructure has improved dramatically
• And yet, most SME clients remain exposed to broadly the same FX risk as before — with estimates suggesting that only around 2–4% actively hedge their FX exposure.

Not because SMEs misunderstand FX, but because the industry has optimised the last step of the journey, while leaving the risk that accumulates before it largely untouched.

From a PSP perspective, this is less a blind spot than the next frontier — now that execution has largely been optimised. FX is still treated primarily as a transaction event, when in reality it is a time‑based exposure embedded in commercial activity. Until that exposure is addressed at source — where invoices are issued, contracts agreed, and payments initiated — SMEs will continue to carry FX risk invisibly on their balance sheets, regardless of how efficient execution becomes.

Solutions to address this exposure do exist — but they have historically sat outside the payment flow, bringing complexity, credit constraints, or operational friction that limit adoption.