Cross-border payments sit at the heart of modern business. Whether you are paying overseas suppliers, collecting from international customers, managing payroll in multiple countries, or settling travel bookings across currencies, moving money across borders is operationally critical.
Yet for many finance teams, cross-border payments remain complex, opaque and expensive.
In this guide, we explain:
A cross-border payment is any transfer of funds between two accounts held in different countries or different currencies.
That might involve:
Behind the scenes, cross-border payments rely on a combination of:
Understanding each layer helps finance teams reduce cost, risk and delay.
SWIFT (Society for Worldwide Interbank Financial Telecommunication) is a global financial messaging network used by banks and financial institutions to send payment instructions securely.
It does not move money itself. Instead, it sends standardised payment messages between banks.
When you initiate a cross-border bank transfer outside regional schemes like SEPA, it often travels via SWIFT.
A typical SWIFT payment may involve:
For example:
A UK bank sending USD to a US bank may route through correspondent banks that hold USD liquidity.
Each intermediary may deduct fees and introduce processing time.
For treasury teams making large international transfers, SWIFT remains essential. But it is not always the most efficient route.
SEPA (Single Euro Payments Area) is a regional payments initiative that enables euro-denominated transfers across participating European countries under standardised rules.
SEPA includes:
If you are sending EUR between two SEPA countries, you are not typically using SWIFT. You are using SEPA rails.
SEPA reduces friction for euro payments within Europe. It is cheaper, faster and more predictable than SWIFT for eligible transactions.
For UK businesses operating in Europe, SEPA remains critical even post-Brexit.
Cross-border payments often require currency conversion. That is where FX comes in.
FX is the process of converting one currency into another at an agreed exchange rate.
For example:
FX introduces:
FX costs can come from:
For high-volume cross-border businesses, unmanaged FX can erode margin significantly.
In sectors like travel or platforms, embedded FX within card or account flows can unlock additional revenue or reduce leakage.
“Local rails” refer to domestic payment systems within individual countries.
Examples include:
Instead of routing via SWIFT, payments can sometimes be delivered through local rails in the destination country.
Local rails often provide:
For example:
Paying USD into a US bank account via ACH can be cheaper than sending a USD SWIFT wire.
Paying EUR within Europe via SEPA is cheaper than using cross-border SWIFT messaging.
Modern payment platforms increasingly combine local rails with global orchestration to optimise delivery.
A cross-border payment may involve:
The route depends on:
When structuring cross-border payments, CFOs should assess:
The cheapest route on paper may not be the most efficient once operational cost and FX margin are included.
Historically, businesses relied on banks to route cross-border payments.
Today, modern payment infrastructure enables:
This reduces reliance on correspondent banking chains and improves predictability.
For high-growth SMEs and platform businesses, this shift can materially improve margin and working capital.
Understanding these building blocks allows finance teams to move from reactive international payments to proactive cross-border strategy.
Modulr provides access to international payment capabilities including SWIFT, SEPA Credit Transfer and SEPA Instant, Faster Payments and Open Banking, alongside embedded FX and multi-currency accounts. By combining direct scheme connectivity with intelligent orchestration, businesses can optimise how cross-border payments are routed, reduce operational friction and gain greater control over international money movement — all within a single payments automation platform built to scale.