Corporate tax haven in the context of "Incorporation (business)"

Base erosion and profit shifting (BEPS) refers to corporate tax avoidance strategies used by multinationals to "shift" profits from higher-tax jurisdictions to lower-tax jurisdictions or no-tax locations where there is little or no economic activity, thus "eroding" the "tax-base" of the higher-tax jurisdictions using deductible payments such as interest or royalties. For the government, the tax base is a company's income or profit. Tax is levied as a percentage on this income or profit. When that income or profit is transferred to a tax haven, the tax base is eroded and the company does not pay taxes to the country that is generating the income. As a result, tax revenues are reduced and the country is disadvantaged. The Organisation for Economic Co-operation and Development (OECD) define BEPS strategies as "exploiting gaps and mismatches in tax rules". While some of the tactics are illegal, the majority are not. Because businesses that operate across borders can utilize BEPS to obtain a competitive edge over domestic businesses, it affects the righteousness and integrity of tax systems. Furthermore, it lessens deliberate compliance, when taxpayers notice multinationals legally avoiding corporate income taxes. Because developing nations rely more heavily on corporate income tax, they are disproportionately affected by BEPS.

Corporate tax havens offer BEPS tools to "shift" profits to the haven, and additional BEPS tools to avoid paying taxes within the haven (e.g. Ireland's "CAIA tool"). BEPS activities cost nations 100–240 billion dollars in lost revenue each year, which is 4–10 percent of worldwide corporate income tax collection. It is alleged that BEPS tools are associated mostly with American technology and life science multinationals. A few studies showed that use of the BEPS tools by American multinationals maximized long-term American Treasury revenue and shareholder return, at the expense of other countries.

Ireland has been labelled as a corporate tax haven in multiple financial reports, an allegation which the state has rejected in response. Ireland is on all academic tax haven lists, including the § Leaders in tax haven research, and tax NGOs. Ireland does not meet the 1998 OECD definition of a tax haven, but no OECD member, including Switzerland, ever met this definition; only Trinidad & Tobago met it in 2017. Similarly, no EU–28 country is amongst the 64 listed in the 2017 EU tax haven blacklist and greylist. In September 2016, Brazil became the first G20 country to "blacklist" Ireland as a tax haven.

Ireland's base erosion and profit shifting (BEPS) tools give some foreign corporates § Effective tax rates of 0% to 2.5% on global profits re-routed to Ireland via their tax treaty network. Ireland's aggregate § Effective tax rates for foreign corporates is 2.2–4.5%. Ireland's BEPS tools are the world's largest BEPS flows, exceed the entire Caribbean system, and artificially inflate the US–EU trade deficit. Ireland's tax-free QIAIF & L–QIAIF regimes, and Section 110 SPVs, enable foreign investors to avoid Irish taxes on Irish assets, and can be combined with Irish BEPS tools to create confidential routes out of the Irish corporate tax system. As these structures are OECD–whitelisted, Ireland's laws and regulations allow the use of data protection and data privacy provisions, and opt-outs from filing of public accounts, to obscure their effects. There is arguable evidence that Ireland acts as a § Captured state, fostering tax strategies.

Conduit OFC and sink OFC is an empirical quantitative method of classifying corporate tax havens, offshore financial centres (OFCs) and tax havens.

Traditional methods for identifying tax havens analyse tax and legal structures for base erosion and profit shifting (BEPS) tools. However, this approach follows a purely quantitative approach, ignoring any taxation or legal concepts, to instead follow a big data analysis of the ownership chains of 98 million global companies. The technique gives both a method of classification and a method of understanding the relative scale – but not absolute scale – of havens/OFCs.