Somebody in Munich has just refused to pay your invoice without an IBAN, so you are searching for a business bank account with an IBAN. Here is the part that will save you a fortnight: if your company banks anywhere in the UK, that account already has one. It has had one since the day it opened.
A UK IBAN is not a separate product. It is your existing sort code and account number, rewritten in a format a foreign bank can read. Nobody sells it to you because nobody has to.
Which means the search is really three different questions wearing the same coat, and only one of them is answered by opening a new account.
You almost certainly already have one
An IBAN is not a new bank account number. It uses your existing bank account details plus additional characters. That is NatWest describing its own business accounts, and every other UK provider says the same thing in slightly different words.
The construction is fixed by a national standard. A UK IBAN is the country code GB, two check digits, a four-character bank code taken from the first four characters of the bank's BIC, the six-digit sort code and the eight-digit account number. Twenty-two characters, and eighteen of them are details you already have printed on a statement.
Read that structure again and notice what is missing. There is no field for your company name, no field for the type of firm holding the money, no field for what protects it. The IBAN is a routing instruction. It is not a certificate of anything.
Where to find the one you have
It is not usually on the front screen of your banking app, which is why so many directors conclude they do not have one.
Your own IBAN appears on your paper statement or your online statement, prefixed GB and 22 characters long. Barclays goes one better and generates it for you: the IBAN does not replace your sort code and account number, it is an additional number, and you can find it on your statement or produce it with the tool on the international payments page. HSBC business customers get the IBAN and BIC on the statement, with the sort code and account number visibly embedded in the string.
Five minutes in online banking, or one call, and the immediate crisis is over.
The three questions hiding behind the search
Now the useful part. Almost everyone typing this phrase is in one of three situations, and they need completely different things.
"I cannot find my IBAN"
You are done. Go and get it from the statement, send it to the client, invoice paid. Nothing below applies to you.
"My client wants to pay me in euro"
This is the real one, and a GB IBAN attached to a sterling account does not solve it. Skip to the next section.
"My company cannot open a UK bank account at all"
Usually a non-resident director, a young company, or a sector the high street quietly declines. That is an eligibility and onboarding problem, not an IBAN problem, and the last two sections are for you.
A GB IBAN is not a euro account
Here is the distinction the provider pages blur. An IBAN identifies an account. It does not create a currency balance inside it.
Send a euro payment to a GB IBAN attached to a sterling business current account and the money does arrive. It arrives converted, at the receiving bank's rate, on the receiving bank's terms, on the day it lands. You had no say in any of it. If your complaint was that cross-border payments cost too much, you have just paid the tax you were trying to avoid, and you have paid it silently.
The rule you cannot ignore runs the other way too. All cross-border euro priority payments within the EU or the EEA must quote the beneficiary BIC and IBAN, and a euro payment sent without them can be returned or rejected and a fee charged. So the German client is not being difficult. Their bank will bounce the instruction.
Domestically nothing changes: for UK payments in sterling you continue to use your sort code and account number, and the IBAN and BIC belong on invoices to clients outside the UK.
What actually fixes euro pricing is a euro balance with its own euro receiving details, so the payment lands as euro, sits as euro, and converts when you choose at a rate you agreed in advance. That is the shape of a multi currency business account, and it is worth checking whether the euro details you are offered are dedicated to your company or a virtual IBAN over a pooled account before you put them on an invoice. If the identifiers themselves are still a blur, which number a payment actually needs is the shorter read.
Bank or payment institution: what the IBAN does not tell you
Two accounts can show you a near-identical GB IBAN and give you completely different things if the firm behind them fails.
In the UK, a firm providing payment services without being a bank has to be authorised or registered by the FCA as an authorised payment institution, an electronic money institution or a small payment institution, and money held with those firms is not covered by the Financial Services Compensation Scheme. One licence, one sentence, and the whole protection question turns on it. The mechanics of that licence are worth understanding properly: here is what an authorised payment institution actually is.
On the bank side, the protection is compensation with a ceiling. FSCS covers eligible deposits up to 120,000 GBP per eligible person per bank, building society or credit union, a limit that rose on 1 December 2025, paid automatically within seven working days of a failure. Two details matter for a company. A limited company or LLP is a separate legal entity, so it can claim its 120,000 GBP alongside a director's personal claim at the same bank. A sole trader cannot: personal and business balances share one limit. And accounts across brands on a shared banking licence are treated as one firm, which quietly undoes the strategy of splitting cash across two high street names.
On the payment institution side, the protection is a ring-fence with no ceiling. Under regulation 23 of the Payment Services Regulations 2017, relevant funds must be kept apart from the firm's own money and placed in a separate designated account with an authorised credit institution. Your money is not the firm's money and never becomes it. What you do not get is a scheme that pays out on a seven-day clock; in a failure you wait for an administration, and the costs of that administration come out before you are repaid.
Neither model is the safe one in the abstract. A 40,000 GBP working balance is fully covered by FSCS and barely touched by the difference. A 900,000 GBP treasury balance is nowhere near covered by it, and the honest comparison is segregation against a limit you have already blown through seven times over.
Where does EX FI sit? On the payment institution side, and we will write the sentence rather than let a badge imply otherwise. EXFI is a trading name of EX Financial Solutions Ltd, which is not itself authorised or regulated by the FCA; the regulated payment services are provided by Gemba Finance Limited, FCA FRN 804853, for UK customers. EXFI accounts are payment accounts, not bank accounts. They are not FSCS covered. Funds are safeguarded in segregated accounts under the Payment Services Regulations 2017.
Any provider should be able to give you that paragraph about itself in one email. If it cannot, you have learned something.
The part nobody prices: how long it takes to open
Compare the two routes on fees and they look close. Compare them on calendar time and they are not in the same category.
The government's own guidance to companies investing in the UK is unusually blunt about it. Opening a full UK business bank account can take four weeks to three months, allowing for meetings to be arranged and the application approved. During that window the bank runs security and identity checks, company credit checks and global database checks for convictions, sanctions and politically exposed persons.
The same page carries three details that decide whether a foreign-owned company gets an account at all. Applications with foreign shareholders or directors should go to the bank's central inward investment team, usually in London, and not through a local branch, online form or call centre. The bank will need to meet at least one representative of your company in person in the UK to sign the mandate. And you will generally need proof of UK company registration, proof of a UK business address, identity documents for every partner, director, trustee or owner, identification of all shareholders holding over 10 percent, and a UK business plan explaining why you need the account.
That is the real price of the FSCS column in every comparison table. It is not the monthly fee.
The payment institution route trades that ceremony for speed. For reference, EX FI accepts UK and EU incorporated business entities, reviews standard applications within 24 to 48 hours with full online KYC, and holds balances in 16 or more currencies with a dedicated IBAN where applicable, reaching SWIFT, SEPA, FPS, BACS and CHAPS, with internal transfers free, SEPA and UK FPS at 0.99 GBP, international SWIFT at 26.40 GBP, FX at 0.70 percent on majors and 0.90 percent on minors, and no monthly fee, opening fee or minimum balance for UK-incorporated entities. Business customers only; there are no consumer accounts.
Two days against three months is a real difference, and it is bought with the protection model described above, not for free. Pretending otherwise would be the easy version of this article.
Choosing, in one page
Stop asking which account has an IBAN. They all do. Ask these instead.
- •Do I need cash deposits, an overdraft or lending? If yes, you need a bank, and the three-month clock starts now.
- •Is my actual pain euro conversion and reconciliation? Then you need a euro balance with euro receiving details, not a second sterling account.
- •How much will sit on the account at month end? Under the FSCS limit, protection is a solved problem at a bank. Well over it, the limit is doing less work than the comparison table implies.
- •Which legal entity provides the account, what is its firm reference number, and is it a bank, a payment institution or an e-money institution?
- •If it is not a bank, where are safeguarded funds held, and with which credit institution?
- •Which rail does each currency I need actually use, and what is the daily cut-off?
Most companies that trade across a border end up running both: a bank account for cash, credit and the relationship, and a payment account for the currencies and the speed. That is not indecision. It is the two products doing the two jobs they are each actually good at.
FAQ
Can I generate my own UK IBAN from my sort code and account number? The arithmetic is public and calculators exist, but do not rely on one. The UK standard reserves IBAN generation to the institution responsible for the account, and RBS tells payers never to create or guess an IBAN and to request it from the party they are paying. A wrong bank code produces a structurally valid IBAN pointing at the wrong bank.
Do I need to put my IBAN on UK invoices? Usually not. For sterling payments between UK accounts, the sort code and account number are what your payer needs. The exception is a foreign currency payment coming from another UK bank account, where the IBAN and BIC do apply.
Is my company covered by FSCS up to 120,000 GBP? Only if the money is a deposit with a UK-authorised bank, building society or credit union. A limited company or LLP is a separate legal entity and can claim separately from a director's personal account at the same bank. A sole trader cannot, because personal and business balances share the single limit.
Can a non-resident director open a UK business bank account with an IBAN? With a bank, yes, but slowly. Approach the bank's central inward investment team rather than a branch, and expect to send a company representative to the UK in person to sign the mandate. Payment institutions onboard remotely instead, with the protection difference set out above.