Bank of Ireland (UK) plc

Bank of Ireland (UK) plc is one of the three banks currently authorised to issue banknotes in Northern Ireland. Its notes combine a long-established Bank of Ireland visual identity with Northern Irish landmarks and, in the modern series, a transition from paper to polymer while remaining fully backed under the United Kingdom’s commercial-banknote framework.

Quick Facts

Institutional Identity

Bank of Ireland (UK) plc is a current authorised banknote issuer in Northern Ireland. The Bank of England lists it alongside Northern Bank Limited, trading as Danske Bank, and National Westminster Bank plc, trading as Ulster Bank in Northern Ireland, as one of the three banks presently permitted to issue Northern Ireland banknotes.

The issuing role is distinct from the Bank of England’s own note-issuing function. Under the modern statutory framework, the Bank of England regulates Scottish and Northern Ireland commercial banknote issuance and requires authorised banks to maintain backing assets at least equal to the value of their notes in circulation. Bank of Ireland (UK) plc remains responsible for the design and issuance of its own note family within that framework.

The bank’s own current-note material confirms that Bank of Ireland (UK) plc issues £5, £10, £20, £50 and £100 banknotes. The notes therefore form one of the broadest active denomination ranges in Northern Ireland and remain a central part of the territory’s distinctive multi-bank sterling system.

Historical Evolution

The modern Bank of Ireland Northern Ireland note identity is especially visible in the Queen’s University Belfast and Bushmills series. Earlier Queen’s University Belfast notes combined the seated figure of Hibernia, six county shields and a reverse vignette of Queen’s University Belfast, creating a formal design language rooted in the bank’s institutional symbolism and Northern Irish geography.

A new Bushmills series entered circulation in 2008, with the Old Bushmills Distillery replacing Queen’s University Belfast as the principal reverse subject on several denominations. Bank of Ireland stated that the design was introduced to coincide with the 400th anniversary of the 1608 licence associated with distilling in the Bushmills area.

The next major change was the move to polymer. Bank of Ireland (UK) plc introduced polymer £5 and £10 notes in February 2019 and followed with a polymer £20 in 2020. The bank described polymer as cleaner, more durable and more secure, while deliberately retaining the familiar Bushmills imagery so that the material and security transition did not erase the established visual identity of the series.

By 2023 the wider Northern Ireland issuing-bank system had largely completed the withdrawal of its remaining paper denominations, marking the practical end of the paper era for current circulation. Bank of Ireland’s note history therefore provides a clear sequence from traditional paper security printing through an established landmark-based design programme to modern polymer production.

Design Philosophy

Bank of Ireland’s Northern Ireland notes balance continuity with regional identity. On the front, recurring elements such as seated Lady Hibernia, the Bank of Ireland name, county shields and carefully controlled serial layouts provide a stable institutional language across denominations and generations.

The reverse designs give the notes a specifically Northern Irish character. Queen’s University Belfast defined the earlier QUB series, while the Bushmills family centres on the Old Bushmills Distillery. These subjects allow the bank to retain recognisable institutional branding while rooting the note family in architecture, education and industrial heritage associated with Northern Ireland.

The move to polymer added a more contemporary security vocabulary without abandoning that established imagery. Current polymer notes use clear windows, microtext, UV features, raised printing, tactile identification devices and denomination-specific optical elements. On the polymer £20, for example, a holographic foil strip is integrated into a large clear window, while the familiar Bushmills vignette remains on the reverse.

For collectors

For collectors, Bank of Ireland (UK) plc should be treated as a distinct Northern Ireland issuer rather than collapsed into the Bank of England or into the wider Bank of Ireland corporate identity without qualification. The legal issuer named in the current Northern Ireland framework is Bank of Ireland (UK) plc.

Series attribution is important. Queen’s University Belfast issues, the 2008 and 2013 Bushmills paper families and the later polymer notes may share recurring institutional motifs, but they differ in substrate, security features, dates and signatures. Those distinctions are useful for building a chronological or variety-based collection.

The paper-to-polymer transition is particularly collector-relevant because familiar visual themes continued while the physical note changed substantially. Comparing paper and polymer examples of the same denomination reveals changes in windows, holographic or colour-shifting elements, tactile features, serial presentation and overall handling characteristics without requiring a completely new design language.

Bank of Ireland notes also belong within the wider Northern Ireland commercial-banknote system. A complete regional collection is therefore best organised by both issuing bank and series, keeping Bank of Ireland (UK) plc separate from Northern Bank/Danske Bank, National Westminster Bank trading as Ulster Bank and historical issuers that no longer have current note-issuing rights.