Microsoft Paid More Tax in Ireland Than in Washington Last Year as EU Disclosure Rules Lift the Lid
New European Union country-by-country reporting requirements have revealed that Microsoft paid $5.6 billion (€4.9 billion) in corporation tax in Ireland for the financial year ending June 2025 — more than the company paid to the US federal government — while booking $47 billion in pretax profits at its Irish operations, a figure that accounted for approximately 38 per cent of the company's total global profits.
Background
Ireland's position as a hub for US multinational investment has been one of the defining features of the country's economic model for over four decades. The combination of a low corporation tax rate, a well-educated English-speaking workforce, EU single market access, and a favourable regulatory environment has attracted some of the world's largest technology and pharmaceutical companies to establish their European headquarters in Ireland.
Microsoft is among the most significant of these multinationals, employing 6,654 staff in Ireland and operating a substantial portion of its global intellectual property and licensing business through its Irish entities. The company's Irish operations have long been understood to be highly profitable, but the precise scale of those profits — and the tax paid on them — has until now been difficult to establish from publicly available information.
The EU's new country-by-country reporting directive, which requires multinationals with global revenues exceeding €750 million to disclose financial data including tax payments and pretax profits on a country-by-country basis, has changed that. Microsoft was among the first major US firms to comply with the new rules, due to its fiscal year ending in June, and the disclosures have provided an unprecedented level of transparency about the company's Irish operations.
Key Developments
The disclosures reveal that Microsoft's Irish operations generated $47 billion in pretax profits for the 12-month period ending in June 2025, on which the company paid $5.6 billion in corporation tax — an effective rate of approximately 12 per cent, close to Ireland's standard 12.5 per cent rate. The $5.6 billion tax payment represents nearly 20 per cent of Microsoft's total global tax payments, making Ireland one of the company's most significant tax jurisdictions worldwide.
The reported data indicates that the Irish operations generated more than $7 million in pretax profit per employee — approximately 13 times higher than the company's worldwide average — a figure that reflects the concentration of high-value intellectual property and licensing income in the Irish entities rather than the productivity of the Irish workforce per se.
By centralising a significant portion of its global profits in Ireland, Microsoft reported a "foreign tax effect" that saved the company $4.3 billion in taxes during the most recent fiscal year, because these profits were taxed at a lower rate than the 21 per cent US corporate tax rate. This saving reduced Microsoft's overall effective tax rate by 2.6 percentage points.
Why It Matters
The Microsoft disclosures are a landmark moment in the transparency of multinational tax arrangements in Ireland. For years, the scale of profits booked by US multinationals in Ireland has been a matter of informed speculation rather than documented fact, with the companies themselves providing only limited information about their Irish operations. The EU's country-by-country reporting directive changes that, and the Microsoft figures — which are likely to be replicated, in varying degrees, by other major multinationals when they publish their own disclosures — provide a clearer picture of the economic relationship between Ireland and the US tech sector. The figures also illustrate the extent to which Ireland's corporation tax revenues are dependent on a relatively small number of very large companies, a concentration that the Irish Fiscal Advisory Council has repeatedly identified as a source of fiscal risk.
Local Impact
Microsoft's Irish operations are centred on its campus in Sandyford, Dublin, where the company employs the majority of its 6,654 Irish staff. The company also has a significant presence in Cork, where it operates a data centre and employs several hundred people. The corporation tax paid by Microsoft and other multinationals is a critical component of Ireland's public finances, funding public services and infrastructure across the country. The Revenue Commissioners have confirmed that corporation tax receipts in the first half of 2026 are running ahead of forecast, driven in part by the strong profitability of the multinational sector. However, economists have cautioned that this revenue stream is inherently volatile and that Ireland should not become overly dependent on it for the funding of permanent public expenditure.
What's Next
Other major US multinationals with Irish operations — including Apple, Google, Meta, and Pfizer — are expected to publish their own country-by-country disclosures in the coming months, providing a more comprehensive picture of the scale of multinational profits and tax payments in Ireland. The Department of Finance is expected to publish an analysis of the aggregate disclosures in the autumn, as part of its ongoing assessment of Ireland's corporation tax base. The OECD's global minimum tax initiative, which Ireland has implemented, is expected to have a modest impact on the effective tax rate paid by multinationals in Ireland, though the full effects will not be clear until the new rules have been in operation for a full financial year.
