Michael Fingleton, who led the Irish Nationwide Building Society for nearly four decades, recently died at 88. His death prompts reflection on a period that significantly shaped Ireland's economic history, particularly the boom and bust that left a lasting impact on the nation. For many, Fingleton and Irish Nationwide became synonymous with the excesses of the Celtic Tiger era.

He headed Irish Nationwide from 1971 to 2009, transforming a modest building society into a major player in Irish lending. At its peak, Irish Nationwide held €16 billion in assets, largely due to aggressive lending to property developers. This rapid expansion, however, proved costly, leading to a €5.4 billion taxpayer bailout when the society collapsed during the 2008 financial crisis.

Fingleton's career began far from high finance. Born in Tubbercurry, Co Sligo, he attended boarding school at St Nathy's College before a brief stint at the All Hallow seminary in Dublin. He left before taking vows, joining Allied Irish Finance in 1961. This allowed him to study commerce at night at University College Dublin, where he qualified as a certified accountant. He then worked with the Dairy Disposal Agency and the charity Concern in Nigeria.

Returning to Ireland in 1971, Fingleton, then 33, joined the Irish Industrial Building Society. It was a small operation with five employees, one branch, and IR£2.3 million in assets. His knack for numbers and a sharp legal understanding, he qualified as a barrister in 1973 but never practiced, quickly became apparent. He convinced the board to expand beyond Dublin, and in 1975, the institution was rebranded as Irish Nationwide Building Society (INBS).

Fingleton was, by all accounts, a master networker. He built strong relationships with politicians and journalists throughout the 1970s and 80s. Many in newsrooms secured their first mortgages through him, earning him the nickname "Fingers." He described the 1980s as a period of "slowly and conservatively" expanding the society, focusing on home loans and smaller commercial loans for shops, offices, farms, and minor developments.

The real shift in Irish Nationwide's strategy came after a 1992 legislative change. This allowed building societies to finance housing development and construction. INBS then began forming joint ventures with developers. One of the earliest and most significant was with Sean Mulryan's Ballymore, developing over 500 homes and a shopping center in Lucan, west Dublin.

Profit-share arrangements became increasingly central to INBS's business during the boom years, especially as the society followed clients into the UK market. By 2008, Irish Nationwide's commercial loan book had grown to €8.18 billion, nearly 80 percent of its total loans. This aggressive push into commercial property lending, often involving complex profit-sharing deals, ultimately led to the society's downfall.

A Central Bank inquiry, started in 2015 and finished a decade later, found significant failures within INBS. The inquiry determined that the society routinely failed to process loans according to its own policies, secure proper property backing for commercial loans, obtain adequate valuation reports on assets it was lending against, or establish robust credit-risk policies for its profit-share agreements with developers. This lack of due diligence and oversight contrasted sharply with the conservative image Fingleton had once projected.

The consequences were devastating. Irish Nationwide ended up with the most toxic loan book among the six banks guaranteed by the State in September 2008. The National Asset Management Agency (NAMA) applied the largest discount, a staggering 72 percent, to INBS's loans when it took over commercial property assets during the crisis. Between 2008 and 2010, INBS lost over €6 billion, primarily from impaired commercial loans.

The rescue of INBS ultimately cost Irish taxpayers €5.4 billion. Its remnants were absorbed into Irish Bank Resolution Corporation (IBRC) in 2011, which itself was liquidated two years later. The cost to the public and the broader economic fallout remains a sensitive topic in Ireland.

While the Central Bank quietly ended its inquiry into Fingleton in late 2019 due to his ill health following a stroke, IBRC liquidators continued to pursue him through the courts. They alleged negligent mismanagement of the lender before its collapse. Fingleton, acting through his wife Eileen and son Michael Jnr under powers of attorney, repeatedly tried to halt the civil case, originally filed in 2012. These challenges and appeals were unsuccessful.

The civil case, where Fingleton could not give evidence, concluded at the High Court in October 2025. Justice Michael Quinn reserved judgment at the time. The legal proceedings, spanning over a decade, highlighted the profound and lasting impact of the Fingleton Irish Nationwide era on the country's financial landscape.

Fingleton's story is complex, intertwined with Ireland's journey through economic prosperity and subsequent hardship. He built an institution from humble beginnings, but his legacy is ultimately defined by the catastrophic failure that followed. The period under his leadership at Irish Nationwide serves as a stark reminder of the risks associated with unchecked ambition and inadequate oversight in the financial sector. The lessons learned from that time continue to influence regulatory practices and financial stability efforts in Ireland today, as the Central Bank of Ireland works to prevent such events from recurring. His passing closes a chapter, but discussions about Fingleton, Irish Nationwide, and its role in the financial crisis will undoubtedly continue.