The Global Tax Race: Jurisdictions Compete for Capital

Across the past four decades, governments around the world have engaged in a relentless competition to attract mobile capital. Known as the race to the bottom in corporate taxation, this contest has profound implications for fiscal sustainability and inequality. Today, the OECD/G20’s 15% global minimum tax (Pillar Two) seeks to establish a new playing field, but the dynamics of tax competition are evolving rather than disappearing.

From High Taxes to a Global Race

In the post–World War II era, statutory corporate income tax (CIT) rates were often high, reflecting the need to rebuild economies and fund expanding welfare states. However, from the 1980s onward, increasing capital mobility and globalization triggered a downward spiral in headline rates. Jurisdictions slashed rates and introduced fancy incentives—patent boxes, special economic zones, and generous deductions—to lure foreign direct investment (FDI), headquarters, and intellectual property.

By the early 2000s, many commentators warned of an unbridled downward movement in rates, with nominal CIT thresholds descending from 40% toward the 20% range and below. While some empirical studies found that rates did not converge on zero, the pressure on governments to match rivals’ cuts was unmistakable.

Two Competing Narratives About Tax Competition

Debates on tax competition split into two broad camps. On one side, international organizations and progressive scholars lament fiscal erosion and widening inequality. They argue that aggressive tax competition undermines states’ ability to fund schools, hospitals, and infrastructure, shifting the burden onto less mobile factors such as labor and consumption.

Conversely, market-oriented think tanks hail competition as a force for discipline and efficiency. They claim that without the threat of capital flight, governments would overtax businesses, stifling innovation and growth. In their view, the competitive discipline on rates has forced policymakers to streamline regulations and cut wasteful spending.

The Turning Point: A Global Minimum Tax

In October 2021, 136 jurisdictions under the OECD/G20 Inclusive Framework reached a landmark agreement: Pillar Two would impose a global minimum effective tax rate of 15% on profits of large multinationals. This “top-up” mechanism ensures that when profits are taxed below the floor in any jurisdiction, the parent company’s home country can collect the difference.

This reform marks the first truly coordinated effort to put a floor under the global tax race. It addresses both rate competition and profit shifting techniques—transfer pricing, IP migrations, and hybrid mismatch arrangements—that erode tax bases in higher-tax countries.

The New Phase: Competition Within a 15% Floor

The introduction of a global minimum does not signal the end of tax competition—rather, it shifts the battleground. Jurisdictions can no longer undercut each other on headline rates below 15%, but they can still vie for capital through:

• substance-based incentives tied to payroll, tangible assets, and R&D
• enhanced infrastructure, streamlined permitting, and digital connectivity
• targeted credits for clean energy, innovation, and workforce training

Emerging instruments like the substance-based tax incentive safe harbour (SBTI-SH) preserve room for incentives that reward real economic activity rather than mere profit shifting. This evolution refocuses competition on tangible contributions—jobs, factories, and R&D centers—rather than mere tax rate arbitrage.

Historical Evolution of the Global Tax Race

Scholars have traced a consistent downward trend in statutory CIT rates since the 1980s. While skepticism remains about whether rates will ever converge to zero, cross-country interdependence in tax policy is clear. Consider these forms of competition:

• Rate competition: Slashing headline CIT rates to lure profits.
• Base competition: Broadening deductions and exemptions.
• Preferential regimes: Tax holidays, patent boxes, and free-trade zones.

Regulatory competition often accompanies these tax incentives. Jurisdictions offering light-touch oversight and corporate secrecy provisions can become magnets for holding companies and financial services, deepening the race.

Drivers: Globalization and Profit Shifting

The globalization of finance and production empowered multinationals to relocate both real activities and paper profits at will. Strategic transfer pricing, IP licensing, and intra-group debt flows enabled profit shifting into low-tax hubs. As a result, high-tax countries saw corporate tax bases erode, raising concerns about fairness and the sustainability of public finances.

Practical Steps for Stakeholders

Policymakers, business leaders, and civil society can take concrete actions to navigate this new era:

• Policymakers should strengthen transparency through country-by-country reporting and beneficial ownership registers.
• Businesses can align tax strategies with long-term value creation, emphasizing quality investments over short-term gains.
• Civil society must advocate for equitable tax systems and monitor the implementation of Pillar Two rules.

By focusing on substance, transparency, and cooperation, stakeholders can ensure that tax competition fosters genuine economic development rather than a narrow pursuit of lower rates.

Looking Ahead: Towards Balanced Competition

The global minimum tax is a milestone, but its success hinges on robust implementation and ongoing collaboration. Jurisdictions must resist the temptation to reinvent low-tax regimes that undermine the spirit of the reform. Instead, they should invest in education, infrastructure, and sustainability—elements that cannot be relocated in a single corporate filing.

As we enter this new phase of the global tax race, the challenge is to harness competition for the common good. By anchoring incentives to real economic activity and ensuring a fair distribution of tax revenues, we can create a more equitable and resilient global economy.