Tax competition is the rivalry between governments that set tax rates and rules partly to attract or keep mobile economic activity: company headquarters, factories, booked profits, financial capital and high-earning individuals. It happens between countries, between states or provinces in a federation, and between cities. Typical tools include low headline rates on corporate profits, special regimes for intellectual property or shipping, tax holidays for new investment, and favourable treatment of foreign residents.
The idea is closely tied to capital mobility, multinational corporations and globalization. It overlaps with, but is not the same as, the use of a tax haven: tax competition covers ordinary rate-setting by any government, while the haven label is usually applied to places that offer very low rates together with secrecy or little real economic activity.
Tax competition in plain terms
Think of two shopping malls on opposite sides of a town, each trying to win the same anchor stores. One offers lower rent, the other answers with free parking and a year rent-free. The stores benefit, and shoppers may too, but both landlords end up collecting less, and they may have less money to repair the roof.
Governments behave in a similar way. A country that lowers its business tax can lure firms and jobs from its neighbours, who may respond by cutting their own taxes. Whether this rivalry keeps governments efficient or starves them of money for schools and roads is the heart of the debate.
History and theory
Economist Charles Tiebout argued in 1956 that competition among local governments could be healthy: residents "vote with their feet" by moving to places whose mix of taxes and services suits them, which pushes governments to deliver public goods efficiently. Later writers, including Wallace Oates in 1972, warned of the opposite risk, a "race to the bottom" in which governments under-tax mobile capital and shift the burden onto less mobile labor, consumers and land. Which effect dominates depends on how mobile the tax base is, a question linked to tax incidence.
From the 1980s, falling barriers to foreign direct investment and the growth of intangible assets made profits easier to move. According to OECD Corporate Tax Statistics 2025, the average combined statutory corporate tax rate across jurisdictions fell from 28.0% in 2000 to 21.7% in 2019 and has been roughly stable since. Ireland's 12.5% trading rate, introduced for all trading companies in 2003, became the best-known example. The United Kingdom cut its main rate from 28% in 2010 to 19% in 2017 before raising it to 25% in April 2023, and the United States cut its federal rate from 35% to 21% from 2018.
Forms of tax competition
- Headline rate cuts. Lower statutory rates on corporate profits or personal income tax aimed at real investment and workers.
- Preferential regimes. Patent boxes, special zones, shipping tonnage taxes and holding-company rules that tax certain income at very low rates.
- Profit shifting. Rules that let multinationals book profits in low-tax places through transfer pricing, intra-group loans and intellectual-property licensing.
- Residence and wealth incentives. Non-domiciled or flat-tax regimes for wealthy newcomers, and the absence of a wealth tax or inheritance tax.
- Subnational incentives. US states and cities offering tax credits and abatements to win a plant or headquarters, a form of targeted subsidy.
International responses
The OECD's 1998 report on harmful tax competition and the European Union's 1997 Code of Conduct for business taxation targeted regimes that offered low rates without real activity. The OECD/G20 Base Erosion and Profit Shifting (BEPS) project, launched in 2013, tightened rules on profit shifting, and international information-sharing such as the Common Reporting Standard reduced secrecy.
The biggest step is Pillar Two of the OECD/G20 Inclusive Framework, agreed in 2021, which sets a 15% global minimum effective tax rate for multinational groups with annual revenue of at least €750 million. Many countries, including EU member states, the UK and Japan, have brought it into law, often through domestic top-up taxes. Ireland applies a 15% rate to in-scope large groups while keeping 12.5% for others. On 5 January 2026 the Inclusive Framework published a "side-by-side" package that, for fiscal years from 1 January 2026, exempts US-parented groups from two of the main Pillar Two charging rules in recognition of the US minimum tax system, while domestic minimum taxes still apply.
Arguments and evidence
Supporters of tax competition, often drawing on public choice theory and free-market economics, argue that it restrains government growth, rewards efficient public services and lets smaller or poorer economies attract capital they would otherwise lack. Ireland and several Eastern European states are cited as places where low rates coincided with strong investment inflows.
Critics, including many development economists, the IMF and tax-justice campaigners, argue that competition erodes revenue needed for public spending, shifts taxes from capital to workers and consumers, and particularly hurts developing countries that rely heavily on corporate tax. Some economists also note that statutory rates have stabilized and corporate tax revenue has risen as a share of GDP in many countries, so the race to the bottom has been partial rather than complete. Measured effects of tax cuts on real investment vary across studies.