Bank of Ireland sort codes

About Bank of Ireland (UK) sort codes

The Bank of Ireland sort codes listed on this page belong to Bank of Ireland (UK) plc, the ring-fenced UK arm headquartered at 1 Donegall Square South, Belfast, BT1 5LR, County Antrim. A sort code is the six-digit number — written as three pairs, such as 90-21-00 — that identifies the bank and the specific branch or operating centre holding an account. Paired with an 8-digit account number, it routes domestic UK payments to the right destination through Faster Payments, BACS and CHAPS. Almost every Bank of Ireland branch sort code falls into the 30, 83 and 90 ranges, and the overwhelming majority resolve to towns and cities across Northern Ireland.

Where Bank of Ireland sort codes are based

Unlike high-street brands spread across Great Britain, Bank of Ireland (UK) concentrates its branch network in Northern Ireland, which is why the addresses behind these sort codes cluster around a familiar set of towns. Many trace back to the head office at Donegall Square South and the High Street branch in central Belfast, while others sit in regional market towns. Sort codes on this page are registered to branches and centres including:

• Belfast — Donegall Square South (head office), 4–8 High Street, Andersonstown Road, Sydenham Business Park
• Derry / Londonderry — Strand Road, Shipquay Street and Culmore Road
• Newry, Armagh, Banbridge & Craigavon — Trevor Hill, Upper English Street, Bridge Street and Market Street, Lurgan
• Ballymena, Coleraine, Limavady & Magherafelt — Church Street, The Diamond and Market Street
• Omagh, Cookstown, Dungannon, Enniskillen & Lisnaskea — Campsie Road, James Street and Townhall Street
• Bangor, Newtownabbey, Glengormley, Lisburn & Downpatrick — Main Street and Antrim Road

A handful of administrative and operations codes sit outside Northern Ireland — for example processing centres in Bristol (Global Markets, Temple Quay), Bellshill in Lanarkshire, and a payments hub in Welwyn Garden City, Hertfordshire. Several postal-only entries point to PO Box 2124, Belfast, BT1 9RS, the bank's central payments address rather than a public counter.

How to read a Bank of Ireland sort code

The first two digits signal the issuing group and clearing arrangement. Codes beginning with 9 were historically registered through the Banking and Payments Federation Ireland (formerly IPSO) and were used across the Northern Ireland clearing system, which ran under the Belfast Clearing Rules until the Image Clearing System managed by Pay.UK was completed in 2019. The 30 range reflects Bank of Ireland's wider clearing membership, while operational ranges such as 83-91 are tied to back-office processing. To confirm the exact branch, city and postcode behind any code, click through to its individual page from the table above.

Branch hours & getting there

Most Northern Ireland branches open Monday to Friday, roughly 10:00am to 4:00pm, with reduced or no Saturday service depending on location and bank holidays. Belfast city-centre branches around Donegall Square and High Street are a short walk from the Europa Bus Centre and Lanyon Place railway station, and are served by multiple Translink Metro routes. Regional branches in towns like Newry, Omagh and Enniskillen are typically located on the main shopping streets with nearby town-centre parking. Always confirm current opening times before travelling, as branch hours can change.

Contact & international details

• Registered office: Bank of Ireland (UK) plc, 1 Donegall Square South, Belfast, BT1 5LR
• Telephone: +44 (0)28 9043 3000
• BIC / SWIFT code: BOFIGB2B (head office)
• Website: bankofirelanduk.com

For international transfers into a Bank of Ireland (UK) account, you'll usually need the BIC/SWIFT code and the account's IBAN rather than the sort code alone, though the sort code remains embedded within the IBAN structure.

Frequently asked questions

Which bank uses sort codes starting with 90?

Sort codes in the 90 range shown here are registered to Bank of Ireland and were administered through the Irish payments framework for Northern Ireland branches. The 90 prefix is closely associated with Bank of Ireland's Belfast and wider Northern Ireland network.

What is the Bank of Ireland head office sort code area?

The head office at 1 Donegall Square South, Belfast sits behind several 90-range codes, including those mapped to that address. Use the table above to find the precise six digits for the branch or centre you need.

Do I need the sort code and account number to pay a Bank of Ireland account?

Yes. For UK Faster Payments, BACS or CHAPS you need both the six-digit sort code and the 8-digit account number. The sort code alone identifies the branch but not the individual account.

Is Bank of Ireland (UK) the same as Bank of Ireland in the Republic?

Bank of Ireland (UK) plc is the separately regulated UK entity covering Northern Ireland and UK services, while Bank of Ireland operates in the Republic of Ireland. The sort codes on this page relate to UK clearing.

How do I check a Bank of Ireland sort code?

Search the table on this page or select any sort code to open its dedicated page with the full branch name, address, city and postcode. For a critical payment, confirm the details with your recipient or the bank.