How B2B cross-border payments work for EEA businesses
B2B cross-border payments move over a few main rails, mainly SEPA, SEPA Instant and SWIFT, and most of the cost and delay comes from what happens between the banks. Here is how each rail works and how to choose a setup for a fintech or PSP.
Key takeaways
- A B2B cross-border payment is a business-to-business transfer where the payer and payee sit in different countries, and often different currencies and payment systems.
- Inside the euro area, SEPA and SEPA Instant move euros quickly and cheaply. Beyond it, SWIFT carries payments across correspondent banks in almost any currency.
- Cost and delay come mostly from the hops in between: intermediary banks, currency conversion and cut-off times, not the transfer itself.
- The rail you use should follow the currency and the destination, not habit.
- Narvi issues dedicated euro IBANs reachable over SEPA and SEPA Instant, and supports SWIFT payments in and out through pooled accounts for flows beyond the euro area.
Introduction
For a fintech, PSP or any business paying suppliers and partners abroad, B2B cross-border payments are a daily operational cost, not an edge case. The money has to cross a border, usually change hands between several banks, and sometimes change currency, and each of those steps adds time, fees or both. Knowing which rail carries your payment, and where the friction sits, is what separates a clean payment stack from one that leaks money on every transfer. This guide maps how the main rails work and how to choose a setup that fits.What counts as a cross-border payment
A cross-border payment is any transfer where the payer’s account and the payee’s account are held in different countries, in other words one of the international transactions businesses make every day. B2B cross-border payments are the business-to-business version: a company paying a supplier, including international suppliers, a platform settling with a partner, a PSP moving funds for a merchant.Two things make them harder than domestic payments. The first is reach: the two banks need a shared way to talk to each other, whether that is a common scheme like SEPA or the correspondent network behind SWIFT. The second is currency. A euro-to-euro payment inside Europe stays in one currency. A euro-to-dollar payment has to be converted somewhere, by someone, at a rate and a spread. Most of what businesses experience as “international payment pain” traces back to one of those two points, and these financial transactions support global trade as companies expand internationally.The rails: SEPA, SEPA Instant, SWIFT, and when each applies
Three rails carry most B2B flows for an EEA business.- SEPA Credit Transfer moves euros between accounts across the SEPA area, which the European Payments Council now lists at 41 countries and territories, including non-EU members such as the UK, Switzerland and Norway. It is low cost, standardised on ISO 20022, and settles by the next business day. It is the default for routine euro payments across Europe.
- SEPA Instant Credit Transfer does the same job in real time. Funds arrive in 10 seconds or less, around the clock, including weekends. By early 2025, over 70 countries had adopted real-time payment systems, and SEPA Instant sits within that broader shift toward real time payment networks. For a euro payment to a counterparty whose provider supports it, there is little reason to use anything slower.
- SWIFT is the rail for everything the euro schemes do not cover: payments beyond the SEPA area, and payments in currencies other than the euro. SWIFT is not an account or a network that holds money. It is a messaging system that instructs banks to move funds, and the money travels through a chain of banks that hold accounts with each other. That chain is where SWIFT’s reach comes from, and also where its cost and delay come from. Newer cross border payment solutions on modern payment platforms increasingly use local payment rails and payment networks to make cross border payments faster than traditional correspondent routing.
Where the cost and delay actually come from
A cross-border payment rarely goes straight from one bank to another. When the two banks have no direct relationship, the payment passes through one or more intermediary, or correspondent, banks that do. Each intermediary can take a fee out of the payment as it passes, which is why the amount that lands is sometimes smaller than the amount sent.Cross-border payments can be up to 10 times more expensive than domestic payments because they may involve multiple banks.Currency conversion is the second cost. When a payment changes currency, a bank applies exchange rates with a margin built in, and traditional banks may charge 1.5–3% above the interbank rate through FX markups, increasing transaction costs. If there is no direct market between the two currencies, the payment may convert twice, through an intermediary currency, and pay a spread each time.A quick example shows how these stack up. A euro payment from a European supplier to a partner in a country with no direct euro market might convert euro to dollars at the first bank, cross through a correspondent, then convert dollars to the local currency at the far end. Two conversions, two spreads, one or two intermediary fees, and a two-to-three-day wait, on a payment that looked simple when it left. If conversion timing is not controlled, volatility can also cause overpayments or underpayments. None of that shows on the sender’s screen at the point of payment, which is why hidden fees, hidden costs, processing fees, and transaction fees make forecasting harder.Timing is the third cost. Payments submitted after a bank’s daily cut-off wait for the next processing window, and cross-border payments only move on business days, so a Friday-afternoon transfer can sit until Monday or later. Compliance screening for sanctions and anti-money-laundering can add checks along the way, and regulatory compliance requirements vary significantly across jurisdictions and by country. A SWIFT path used for a traditional bank transfer or wire transfer can face slow processing times and payment delays, especially when more intermediaries are involved.Tracking has improved. SWIFT’s global payments innovation (gpi), introduced in 2018, supports real time payment tracking, and stronger visibility gives businesses more transparent pricing across the wider payment process. The cost and the hops, though, are structural to the correspondent model.Holding vs converting: what a multi-currency setup changes
If your business receives and pays in more than one currency, a strategy built around multi currency payments is often far more efficient than converting on every transaction. Each conversion pays a spread, and converting money you are only going to pay out again in the same currency is pure leakage.A multi-currency setup lets you hold a balance in the currency you received and spend it later in that same currency, converting only when you actually need to and at a moment you choose. Businesses must still adhere to local financial laws when holding and using balances across borders. For a business with real two-way flows in euros, dollars and pounds, that can help manage funds and support cash flow by reducing unnecessary conversions. The trade-off is that holding multiple currencies usually means more accounts, more reconciliation and a provider that supports each currency you care about. It is a setup decision worth making deliberately, based on your actual currency mix rather than on every currency a provider advertises. Distributed ledger technology is also emerging as a way to reduce conversion and settlement friction, and blockchain payments could save businesses $10 billion by 2030. That matters for international payments, especially as global stablecoin transaction volume reached $27 trillion annually as of 2025.What to look for in a cross-border setup for a fintech or PSP
The right setup for managing international payments depends on where your money goes and in what currency. A few questions bring the choice into focus:- Which countries and currencies do you actually send to and receive from, by volume? Match the provider’s reach to that list, not to a headline number, especially if you need to send or receive international payments across different markets.
- Which rails does the provider support directly: SEPA, SEPA Instant, SWIFT, and local payment methods? Check whether it also supports multiple payment methods that fit how your business pays and gets paid.
- Is your account a dedicated IBAN in your own name, so payments carry your company and reconcile cleanly?
- How transparent is the FX: one clear rate and margin, or a rate you only see after the fact? Your bank or payment provider should show currency exchange costs clearly before you confirm the transfer.
- Can it be automated through an API, or is every payment manual, making timely payments harder to maintain at scale?
- What are the real settlement times and cut-offs, not the best-case ones?
- Is the provider licensed and its client funds safeguarded, and by which regulator? Regulatory compliance can vary significantly by country, so the details matter.
How Narvi supports EEA cross-border flows
Narvi runs euro-first. Every Narvi business account comes with a dedicated euro IBAN in your company’s own name, reachable over SEPA and SEPA Instant, so euro payments across the SEPA area settle quickly and arrive under your name. For a business whose cross-border flows are mostly euro, that covers the bulk of the volume on the fastest, lowest-friction rails, and Narvi supports cross border transactions for businesses that need efficient euro-area flows.For payments beyond the euro area, Narvi supports SWIFT in and out through pooled accounts as part of broader cross border payment platforms for global reach. It can receive euro, sterling and US dollars from anywhere in the world, and send to 100+ countries in 60+ currencies. This is currently arranged with Narvi’s support team rather than run as a self-serve product, so it suits businesses that want a person accountable for their global payments and better visibility when managing international supply chains rather than a black box. Multi-currency accounts are on Narvi’s roadmap rather than live today, so the honest position is euro IBANs now, broader currency support in progress to help businesses manage funds across multiple currencies more easily.Narvi is a Finnish-licensed e-money institution, not a bank, with client funds safeguarded inside the EU. For a fintech or PSP, that combination, a dedicated euro IBAN on SEPA rails plus supported SWIFT reach, covers most EEA cross-border needs without a pooled account standing between you and your counterparties. This setup also avoids some dependence on separate banking systems and can help businesses make timely payments.
Talk to our team about your payment flows
Frequently Asked Questions
B2B cross-border payments are business-to-business transfers where the paying company and the receiving company hold accounts in different countries, and often in different currencies. They may use different payment methods depending on the corridor and currency. They move over payment rails such as SEPA and SEPA Instant within the euro area, and SWIFT beyond it.
SEPA moves euros between accounts across the SEPA area on a single standardised scheme, quickly and at low cost. In practice, funds move from one business bank account to another held with different banks or providers. SWIFT is a global messaging network that instructs banks to move funds in almost any currency, worldwide, through correspondent banks, which makes it broader in reach but slower and more expensive.
A SEPA Credit Transfer settles by the next business day, and SEPA Instant arrives in 10 seconds or less. A SWIFT payment commonly takes two to five days, depending on how many intermediary banks are involved and the cut-off times along the way.
Most of the cost comes from the steps between the two banks: intermediary banks that deduct fees, currency conversion with a built-in margin, and sometimes a second conversion through an intermediary currency. In plain language, that often means high transaction fees. Credit card payments can handle currency conversion automatically, but they are usually not the default for larger B2B transfers. The transfer itself is rarely the expensive part.
Yes, if it holds a euro account that is reachable over SEPA. A euro IBAN issued by an EEA-licensed institution gives a business a euro account on SEPA rails, even when its own country is outside the euro area.
Originally published July 10, 2026DisclaimerThis publication is provided for general information purposes and does not constitute legal, tax, or other professional advice from Narvi Payments Oy Ab or its affiliates, and it is not intended as a substitute for obtaining advice from a financial advisor or any other professional.
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