Microsoft Disclosure Provides Rare Glimpse of Tax Haven Tactics
A Microsoft disclosure to the Danish government reveals that the company routed $37 billion in profits through a subsidiary in Ireland, where the effective tax rate was less than 1% in 2020. The document offers a rare public look at how the tech giant used Irish tax laws to avoid paying higher taxes in other countries where it operates.
Background
- Microsoft filed its EU country-by-country tax report for 2025, revealing that it booked €10.7 billion in profit in Ireland — a country where its corporate tax rate was effectively ~3.3% — while paying far higher rates elsewhere.
- The report is required under new EU public disclosure rules (DAC6/CBCR directives) that force large multinationals to publish revenue, profit, and taxes paid per EU member state. This makes tax haven strategies visible for the first time.
- Microsoft routes intellectual property royalties through Irish subsidiaries (a structure known as the "Double Irish" until loopholes were closed) to shift profits out of high-tax countries like Germany and France into low-tax jurisdictions.
- The disclosure also covers Bermuda, where Microsoft reported €2.3 billion in profit but paid zero corporate tax — a common practice of parking profits in no-tax jurisdictions even if no substantive operations occur there.
- Why it matters: These reports give regulators and the public hard data on how Big Tech legally avoids billions in taxes, fueling ongoing EU and OECD efforts to impose a global minimum corporate tax rate (15% under Pillar Two).