What Is SEPA and How It Works: A Practical Guide for UK Businesses

What SEPA actually is

SEPA is the Single Euro Payments Area. The European Central Bank describes it as the arrangement that lets customers make cashless euro payments anywhere in the European Union, and to a number of non-EU countries, in a fast, safe and efficient way, just as they would within their own country. The point of SEPA is harmonisation: it removes the technical, legal and market barriers that used to make a euro payment to another country slower and more complex than a domestic one.

SEPA is not a bank and it is not a single piece of software. It is a set of agreed technical standards and business rules, formalised in what are called the SEPA payment schemes. Those schemes are developed and administered by the European Payments Council (EPC), an international not-for-profit association made up of payment service providers and their associations. The wider project was launched by the European banking and payments industry with the support of national governments, the European Commission and the Eurosystem.

Because every participating bank follows the same rulebooks, harmonised standards across all SEPA countries have eliminated the differences between domestic and cross-border euro payments. In practice that means a euro transfer from London to Lisbon can follow the same rules, formats and expectations as a euro transfer between two accounts in the same country.

Which countries SEPA covers

The SEPA region is larger than the euro area and larger than the European Union. According to the European Central Bank, the SEPA region consists of 41 European countries as of 22 May 2025, including countries that are not part of the euro area or the EU, as well as several territories with historical ties to those countries.

That scope covers the 27 EU member states plus a group of non-EU participants, among them the United Kingdom, Iceland, Norway, Liechtenstein, Switzerland, Monaco, San Marino, Andorra and Vatican City. The European Payments Council maintains the definitive list of countries and territories in the SEPA schemes' geographical scope, and it has been expanding in recent years as further countries have been admitted.

A useful point to hold on to is that SEPA is defined by the currency and the rules, not by EU membership. What makes a payment a SEPA payment is that it is in euro, sent between accounts held at participating providers inside that geographical scope, and processed under one of the SEPA schemes.

The four SEPA schemes

The European Payments Council runs four euro payment schemes. Two are credit transfers, where the payer pushes money to the payee, and two are direct debits, where the payee pulls money from the payer with prior consent. Each scheme is a rulebook plus implementation guidelines, and all four are based on the ISO 20022 messaging standard, which gives the payments a common structured format.

The SEPA Credit Transfer (SCT) scheme is the workhorse. According to the EPC, the vast majority of euro credit transfers in SEPA, more than 29 billion every year, are based on the SCT scheme, and it can be used for one-off or recurring payments across the 41 SEPA scheme countries. As a result of the SEPA Regulation, Regulation (EU) No 260/2012, the SCT scheme is mandatory for all providers offering euro credit transfer services in the European Economic Area.

The SEPA Instant Credit Transfer (SCT Inst) scheme, launched in November 2017, moves money in near real time. The SEPA Direct Debit Core (SDD Core) and SEPA Direct Debit Business-to-Business (SDD B2B) schemes handle collections. SDD Core is aimed primarily at consumers and is mandatory for providers offering euro direct debit to consumers, while SDD B2B is used exclusively between businesses and is optional for providers to offer. The table below summarises the four.

How SEPA Instant works and why 10 seconds matters

The SEPA Instant Credit Transfer scheme is the part of SEPA that feels the most modern. Under the scheme, money is transferred to another account in less than 10 seconds, 24 hours a day, 365 days a year, according to the European Payments Council. There is no closing time and no waiting for the next business day, which is a real change from traditional cross-border payments.

Behind that headline is a tight processing window. Once the payer's provider receives the instruction and marks the time of receipt, the payer's provider, the payee's provider and the clearing and settlement mechanism have a total of nine seconds to process the transaction and make the funds available in the payee's account. The scheme launched in November 2017 and has grown steadily as more providers have joined.

SCT Inst is optional for providers to offer at scheme level, so not every account can send or receive instant euro payments yet, and providers can set their own maximum transaction limits. For a business, the practical questions are simple: does your provider support SCT Inst, does your counterparty's provider support it, and does the amount fall within any limit your provider applies.

The role of the IBAN in every SEPA payment

SEPA payments are built around the IBAN, the International Bank Account Number. The European Central Bank is clear that customers can only reap the benefits of SEPA if they use the IBAN and the BIC, which are well-established international standards that all participants in the payments cycle must adopt. The IBAN identifies the exact account, and the standardised format is what lets banks across 41 countries route euro payments automatically.

For a UK business, this is the everyday reality of using SEPA. To send a euro payment you need the recipient's IBAN, and to receive one you give out your own euro IBAN. Because the IBAN encodes the country and the account in a single string, a correctly formatted IBAN is what allows a euro payment to cross a border under SEPA rules rather than being treated as a bespoke international transfer.

Getting the IBAN right matters. An incorrect or mistyped IBAN is the most common reason a SEPA payment is delayed or returned, so it is worth confirming the full IBAN with the payee before sending, particularly for first-time or high-value payments.

How to make a SEPA payment

Making a SEPA credit transfer is very similar to making a domestic transfer, with the IBAN doing the heavy lifting. The steps below describe a standard SEPA Credit Transfer initiated from a euro account. If you need the money to arrive immediately and both providers support it, you would select SEPA Instant instead of a standard transfer.

The mechanics are the same whether the payee is in your own country or another SEPA country, which is the whole point of SEPA. The scheme rules, formats and processing are harmonised, so you do not need a different process for a cross-border euro payment.

Does the UK still use SEPA after Brexit?

Yes. The United Kingdom remains part of the SEPA geographical scope after Brexit, and UK banks and businesses can still make and receive euro payments through the SEPA schemes. The difference is the UK's status: it now participates as a non-EEA country rather than as an EU or EEA member.

This was secured through the European Payments Council's participation criteria, which allow for non-EEA participation subject to strict conditions, including a strong economic and legal relationship with the EU alongside market, operational and regulatory requirements. The EPC board decided on 7 March 2019 to approve UK Finance's application for the continued participation of UK payment service providers in the SEPA schemes, so that UK providers could keep making and receiving euro payments with other SEPA countries.

For UK businesses, the practical takeaway is that SEPA remains available for euro payments to and from Europe. Your provider still needs to participate in the relevant scheme, and it is worth checking any fees your provider applies to SEPA transactions between the UK and the EU, as some of these changed after Brexit. If you want to build efficient euro payment flows into your operations, our team can help you map the options through Nasara Connect Pay.

Conclusion

SEPA is the framework that makes a euro payment across Europe behave like a domestic one. It covers 41 countries, runs on four schemes for credit transfers and direct debits, and depends on the IBAN to route payments automatically under a single set of harmonised rules. For a business moving euro, that consistency is the whole value: one process, one format and predictable rules whether the money goes down the road or across the continent.

The UK's continued participation as a non-EEA member means UK firms keep access to SEPA credit transfers, instant payments and direct debits for their euro business, provided their payment partner supports the relevant schemes. If you want to review how your euro payments are handled, or design a cleaner setup, talk to our team about how SEPA fits into your payment operations.

Frequently asked questions