Fine Gael blueprint puts year-one cost of Irish unity at €3.2bn to €25bn

What the blueprint proposes

Fine Gael published its "Blueprint for a Unified Ireland" at its ard fheis in Cork on Saturday, 7 November. The cost modelling was prepared by economist Stephen Kinsella, who advises Tánaiste Simon Harris, and it sets out four designs for a unified island: "Unitary", "Federal", "Managed Integration" and "Higher Cost", each measured against the status quo. The modelling puts the year-one cost to the exchequer between about €3.2bn and €25bn, while the Financial Times rounds the low end to €3bn.

Year one, lowest estimate3.2

Year one, highest estimate25

Year 25, highest-cost scenario41.2

Year one, lowest estimate

3.2 €bn

Year one, highest estimate

25 €bn

Year 25, highest-cost scenario

41.2 €bn

Data from the article text

The range depends on the design chosen, on whether the British government keeps accrued pensions and debt interest, and on how pay, pensions and public service provisions are harmonised. The most adverse high-cost scenario puts the bill at €41.2bn for year 25 after unity. Kinsella stresses that there is "no single fixed cost of unity", and that a settlement with London is critical to the estimates.

The party also proposes a junior minister for North-South relations within a dedicated unit in the Department of An Taoiseach, plus a sovereign wealth fund to meet transition costs. It would also create an independent, government-supported, inter-party forum underpinned by law, led by an independent chair, running for five years with an option of a two-year extension.

Growth and the cost of transition

Kinsella's analysis treats economic growth as the decisive factor. Northern Ireland's annual growth has averaged about 1.3% since the early 2000s. Under managed integration, where public sector pay and social security are gradually aligned, infrastructure spending rises and some public services run in parallel while institutions merge, the region would need annual growth of about 3% to 4.7% to fund transition borrowing over 25 years. At 2% a year, he argues, no design repays that borrowing within 25 years.

“A plan for reunification has to start as a plan for faster growth in Northern Ireland,”

He points to wastewater, the electricity grid and transport, along with skills, the productivity of local firms and research and development. Northern Ireland's devolved government has ambitions in these areas but has lacked the funding or political will to make significant progress. Kinsella also considers German reunification, noting that convergence restarted after 2011, ran fastest from 2012 to 2019, was halted by Covid and has since slowed, especially outside Berlin.

Political reaction

Emer Currie TD, who put the document together, dismissed the idea that costs could stymie public support. She argued that people are willing to fund unity.

“I think people are prepared to pay the cost for a unified island.”

Simon Harris, who is also deputy prime minister and finance minister, told the Cork conference on Saturday evening that the document was the beginning of a conversation rather than its end. Days earlier, Taoiseach Micheál Martin had announced a Future Studies Initiative to examine three scenarios: a reunited Ireland governed from Dublin, a federal state with Northern Irish institutions remaining in Belfast, and the status quo. The initiative will not pick a preferred outcome.

Foreign Affairs Minister Helen McEntee said Fine Gael has no plans to run candidates in Northern Ireland, but wants real conversations on what a unified Ireland might look like. Sinn Féin leader Mary Lou McDonald welcomed the blueprint and urged Harris to engage opposition parties, parties in the North, civil society and the diaspora.

“Ireland's future is far too important to be confined by party political differences.”

Fine Gael's wider test

The Irish Times editorial frames the blueprint as part of a wider identity problem. Fine Gael's support has halved since 2011, and Harris's personal popularity is in decline. The party is seeking renewal under the words "stability and reform". Harris's televised speech called for penalties for people who treat the dole as a way of life. A poll published at the weekend put the Democratic Unionist Party at 14%, a five-year low, over its handling of a planned Orange Order march, and the party is the largest pro-UK group in Northern Ireland.