Candice Horbacz
Policymakers frequently operate under the assumption that a fundamental choice exists between generating substantial tax revenue and cultivating a tax system that fosters economic competitiveness. This perceived dilemma often frames tax policy debates, suggesting that prioritizing one inevitably compromises the other. However, a comprehensive analysis of developed economies, comparing their tax collections with their performance in the International Tax Competitiveness Index (ITCI), reveals that this trade-off is often overstated. The findings suggest that governments possess significant opportunities to refine the architecture of their tax systems, thereby enhancing competitiveness without necessarily sacrificing critical revenue streams.
Across the spectrum of developed economies, the relationship between the quantum of government revenue and the structural efficiency of their tax systems is far from clear-cut. Contrary to a widely held belief, even nations with relatively high tax burdens can maintain impressive levels of tax competitiveness. Conversely, some countries that collect comparatively less revenue are burdened by inefficient and economically distortionary tax frameworks. The performance of these nations in the ITCI is not primarily dictated by how much they tax, but rather by the efficiency and neutrality with which their tax policies are implemented. This nuanced perspective challenges conventional wisdom, positing that strategic design choices, rather than mere rate adjustments, are the linchpin of a successful tax regime.
Understanding the International Tax Competitiveness Index (ITCI)
The International Tax Competitiveness Index, developed by the Tax Foundation, serves as a crucial benchmark for evaluating the tax systems of OECD member countries. Established as a response to the growing complexity and global nature of tax policy, the ITCI aims to provide a data-driven assessment of how well countries’ tax systems promote economic growth and avoid distorting investment and labor decisions. It assesses these systems against two foundational principles: competitiveness and neutrality. Competitiveness refers to how effectively a tax system encourages investment, innovation, and overall economic activity, thereby promoting long-term growth. A competitive tax system minimizes the tax burden on capital and labor, making a country an attractive destination for businesses and skilled workers. Neutrality, on the other hand, evaluates the extent to which a tax system avoids distorting economic decisions. A neutral tax system allows individuals and businesses to make choices based on market forces rather than tax considerations, preventing misallocations of capital and labor.
The ITCI employs a robust methodology, incorporating over 40 distinct variables across five major categories of tax rules: corporate, individual, consumption, property, and cross-border taxation. This comprehensive approach provides a holistic view, moving beyond simple tax rates to consider the intricate details of tax bases, deductions, exemptions, and administrative complexities. If the prevailing assumption—that tax competitiveness is merely a reflection of low tax collections—were true, one would anticipate a distinct inverse relationship between countries’ tax-to-GDP ratios and their ITCI scores. However, the data reveals only weak and inconsistent patterns, challenging this simplistic correlation.
For instance, the three highest-ranking countries in the ITCI—Estonia, Latvia, and New Zealand—exhibit a striking similarity in their overall tax collections. Their tax-to-GDP ratios cluster remarkably close to the OECD average of approximately 34 percent. This convergence at an average revenue level, despite their top-tier competitiveness, immediately contradicts the notion of a direct trade-off. Furthermore, countries spanning a broad range of revenue levels are distributed throughout the ITCI rankings. It is noteworthy that some nations with tax-to-GDP ratios exceeding 40 percent manage to secure positions in the upper half of the ITCI, while, paradoxically, certain low-revenue countries languish near the bottom. This diverse distribution underscores the profound influence of tax system design over mere revenue volume.
High Competitiveness with Average Revenue: The Baltic and Pacific Models
Estonia (1st), Latvia (2nd), and New Zealand (3rd) stand as compelling exemplars of how highly competitive tax systems can coexist harmoniously with average levels of government revenue within the OECD framework. Their success stems from strategic and deliberate design choices that prioritize efficiency and neutrality.
All three nations share a common reliance on broad-based consumption taxes, coupled with relatively efficient income tax systems. Estonia and Latvia, in particular, have implemented an innovative corporate tax model: they only levy taxes on corporate profits when these profits are distributed to shareholders. Retained earnings, crucial for reinvestment and business expansion, remain untaxed. This "distributed profits tax" system, first adopted by Estonia in 2000 and later by Latvia in 2018, significantly simplifies business taxation, reduces compliance costs, and actively incentivizes companies to reinvest their earnings within the economy, rather than distributing them. Consequently, their corporate tax rates, when applied to distributed profits, typically lie below the OECD average of 24.2 percent (as projected for 2025), and crucially, they avoid additional layers of dividend or withholding taxes that can create further distortions and complexities for investors. This approach has been widely lauded by economists for its pro-growth incentives, often cited in discussions on attracting foreign direct investment.
New Zealand’s tax system is anchored by its broad-based Goods and Services Tax (GST), applied at a modest rate of 15 percent to nearly all final consumption. This wide tax base ensures that substantial revenue is generated without resorting to excessively high rates that could stifle consumer spending. Similarly, Estonia and Latvia maintain robust Value-Added Tax (VAT) bases, covering approximately 70 percent and 65 percent of final consumption, respectively. These figures significantly surpass the OECD average of 55 percent, demonstrating a commitment to broad, efficient consumption taxation.
A critical commonality among these top-performing countries is their deliberate avoidance of highly distortionary capital taxes. These include instruments such as net wealth taxes, financial transaction taxes, property transfer taxes, capital duties, and estate or inheritance taxes. Such taxes, while sometimes politically appealing, often yield relatively low revenue while imposing substantial economic costs through disincentives for saving, investment, and capital formation. Estonia’s property tax system further exemplifies this principle, applying only to the value of land and explicitly excluding built structures, thereby avoiding disincentives for property development and improvement. This policy, in place for decades, ensures that improvements to buildings are not penalized by increased taxation, fostering urban development.
These meticulously engineered design choices collectively contribute to a substantial reduction in economic distortions and compliance burdens. Simultaneously, they enable these countries to collect tax revenue commensurate with the OECD average, effectively dismantling the perceived trade-off between fiscal soundness and economic dynamism. The success of Estonia, Latvia, and New Zealand serves as a powerful testament to the efficacy of structural tax reform.
High-Tax Economies: Balancing Revenue and Competitiveness
The experience of the Scandinavian countries presents a distinct, yet equally instructive, pattern. Denmark (27th), Norway (21st), and Sweden (11th) are characterized by some of the highest tax-to-GDP ratios within the OECD, frequently exceeding 40 percent. Despite these substantial revenue collections, their ITCI scores are not uniformly relegated to the bottom of the rankings. Instead, their performance spans a considerable range, from the lower middle to the upper third of the index, indicating that high taxation does not automatically equate to poor competitiveness.
These nations largely finance their extensive government spending and generous welfare states through broad-based taxes on consumption and labor income, while strategically maintaining corporate tax rates that are often below the OECD average. Their high VAT rates, typically around 25 percent, are applied to comparably broad consumption bases, minimizing distortions that arise from fragmented tax bases. Furthermore, their VAT registration thresholds are notably low—a mere fraction of the OECD average—which helps prevent costly economic distortions and ensures broader compliance. While top personal income tax rates in Scandinavia tend to be high, exceeding 55 percent in Denmark, these rates are applied to broad bases, with top-rate thresholds typically set at 1.1 to 1.8 times the average wage. This structure ensures that a wide segment of the population contributes, rather than disproportionately burdening a small elite.
Significant differences among the Scandinavian countries account for their varying positions in the ITCI. Norway, for instance, is one of a handful of countries to levy a net wealth tax, which can be particularly harmful to investment, in addition to a high capital gains tax. However, Norway’s substantial revenues from its oil and gas reserves provide a unique fiscal cushion, allowing it to maintain high public spending and comparatively lower income tax rates than its Nordic counterparts, somewhat mitigating the impact of its wealth tax on overall competitiveness. Sweden, often lauded as the best performer among the group, achieves its higher ranking primarily through its comparatively lower tax rates on corporate income, dividends, and capital gains. It also offers above-average capital cost recovery provisions for investment, further encouraging business growth, and crucially, it levies no estate or inheritance tax. Denmark, on the other hand, faces challenges to its competitiveness due to one of the highest dividend and capital gains tax rates in the OECD, standing at 42 percent. This high rate can significantly hinder the accumulation of household savings outside of tax-preferred accounts, impacting capital formation and investment. Economists frequently point to this as a disincentive for domestic capital accumulation and entrepreneurial risk-taking.
The Scandinavian experience vividly demonstrates that high levels of tax revenue do not inherently lead to poor tax competitiveness. These nations successfully sustain extensive public services by relying on broad and relatively neutral tax bases, particularly labor income and consumption. Nevertheless, even these sophisticated tax systems contain structural inefficiencies to varying degrees, suggesting that substantial improvements to their tax codes remain possible. This continuous pursuit of efficiency, even within high-tax frameworks, is a hallmark of robust tax policy.
The Perils of Poor Tax Structure: A Challenge for All Revenue Levels
The lowest-ranking countries in the ITCI provide further evidence that weak tax competitiveness is not solely the domain of high-tax economies. France (38th) and Italy (37th) are among the OECD nations collecting the highest tax revenues as a share of GDP, often exceeding 40 percent—a level comparable to the Scandinavian countries. In stark contrast, Colombia (36th) registers one of the lowest tax-to-GDP ratios, falling below 20 percent. Despite these profound differences in overall revenue collection, all three countries share a common thread: a combination of high corporate tax rates, narrow VAT bases, stringent cross-border tax rules, and a multiplicity of distortionary capital taxes. This confluence of structural flaws significantly impairs their economic competitiveness.
Corporate tax rates in these countries consistently exceed the OECD average, which currently stands at approximately 24.2 percent (as of 2025 projections). France, for example, levies one of the highest combined top corporate tax rates at 36.1 percent, a figure inflated by multiple surtaxes and economically distortive production taxes. Colombia follows closely with a 35 percent rate, further complicated by a progressive schedule featuring multiple tax brackets. These high rates, coupled with complex structures, deter domestic and foreign investment, often leading to capital flight and reduced economic activity.
The tax codes of these bottom-ranking nations are characterized by layers of numerous, often overlapping, taxes. These include taxes on bank and business assets, estates and inheritances, financial transaction taxes, and property transfer taxes. Colombia, notably, also imposes a comprehensive net wealth tax. Such a proliferation of capital taxes generates significant economic distortions, discourages saving and investment, and adds considerable complexity and compliance costs for businesses and individuals. These taxes are often criticized by international organizations for their administrative burden and potential to disincentivize productive investment.
Furthermore, their VAT bases are notably narrow, significantly underperforming the OECD average of 55 percent. Colombia covers only 38.5 percent of final consumption, Italy 43.3 percent, and France 50 percent. Narrow VAT bases necessitate higher rates to achieve desired revenue targets, leading to greater economic distortions and creating incentives for tax avoidance. Exemptions and reduced rates for specific goods and services not only complicate administration but also undermine the neutrality of the consumption tax. This makes the system less efficient and often less equitable, as it can favor certain industries or consumer groups.
Colombia’s particularly low overall revenue collection can be attributed, in part, to an extremely narrow personal income tax base. This base often encompasses only a small segment of high-income earners, resulting in a meager 2.2 percent of GDP generated from this source. In sharp contrast, both France and Italy derive approximately 24 percent of their GDP from personal income taxes and social contributions. With limited revenue from a broad-based labor income tax, Colombia becomes disproportionately reliant on economically harmful taxes with highly mobile bases, such as corporate income. This overreliance exacerbates distortions and makes the economy vulnerable to shifts in international investment. The lack of a robust, broad-based individual income tax makes its fiscal structure inherently fragile and less resilient to economic shocks.
These stark examples underscore a critical insight: both high- and low-revenue countries can operate uncompetitive tax systems when they erode their consumption and labor income tax bases and simultaneously employ highly distortive capital taxes. The common denominator of poor structural design, irrespective of revenue levels, is a significant impediment to economic prosperity.
Pathways to Improved Tax Design Without Sacrificing Revenue
The weak and often non-existent link between the quantum of tax collections and the degree of tax competitiveness illuminates a crucial distinction that policymakers must grasp. There is a common misconception that enhancing competitiveness inherently demands a trade-off: reducing distortionary taxes will inevitably lead to a reduction in overall government revenue. While this trade-off can be very real, especially in the short run and as governments approach the limits of their least distortive revenue-generating options, it is often exaggerated. Many countries currently raise revenue in ways that introduce an abundance of unnecessary friction, inefficiencies, and economic drag. This prevalent situation creates substantial headroom for structural tax reforms that can markedly improve tax competitiveness and stimulate economic growth without necessarily diminishing government revenues.
The global economic landscape, characterized by increasing capital mobility and intense international competition for investment, amplifies the urgency of such reforms. Nations that fail to modernize their tax systems risk falling behind, losing out on valuable foreign direct investment, skilled labor, and innovative businesses. Conversely, countries that strategically restructure their tax codes stand to gain a significant competitive advantage.
Structural reforms can make national tax codes more competitive by systematically eliminating distortive tax incentives, reducing or abolishing harmful capital taxes, and improving capital cost recovery provisions for businesses. The goal is to shift the overall tax burden towards broader, more stable, and less mobile tax bases, such as consumption and land. For instance, expanding the base of a value-added tax (VAT) by removing exemptions and applying a single, moderate rate can generate substantial revenue with minimal distortion. Similarly, replacing complex, multi-layered property taxes with a simpler, land-value-based tax can encourage efficient land use and development, as seen in Estonia.
Furthermore, simplifying tax administration and reducing compliance costs for businesses, particularly small and medium-sized enterprises (SMEs), can significantly enhance competitiveness. Complex tax codes often impose a disproportionate burden on smaller firms, hindering their growth and ability to compete. Streamlining processes, leveraging digital solutions, and providing clearer guidance can free up resources that businesses can then channel into productive investment and job creation. This administrative efficiency is a key component of the ITCI’s evaluation, recognizing that complex systems impose real costs.
The ongoing discussions surrounding global tax harmonization, particularly initiatives like the OECD’s Base Erosion and Profit Shifting (BEPS) project and the Pillar Two rules for a global minimum corporate tax, add another layer of complexity and opportunity. While these initiatives aim to address tax avoidance and ensure a fairer distribution of tax revenues, they also compel countries to re-evaluate their domestic tax incentives and competitiveness strategies. Nations that proactively adapt their tax systems to these evolving international norms, focusing on structural efficiency rather than simply reacting to external pressures, will be better positioned for long-term economic stability and growth. Experts from the Tax Foundation and other economic think tanks consistently advocate for these types of reforms, emphasizing that a well-designed tax system is a powerful tool for economic development.
In conclusion, the evidence from the International Tax Competitiveness Index strongly suggests that the perceived conflict between collecting high tax revenue and maintaining a competitive tax system is frequently a false dichotomy. The critical determinant of a nation’s economic vibrancy and attractiveness to investors is not merely the aggregate amount of tax collected, but the underlying design and efficiency of its tax architecture. By embracing intelligent structural reforms that broaden tax bases, minimize distortions, and simplify administration, policymakers can forge tax systems that are both fiscally robust and economically dynamic, paving the way for sustained prosperity in an increasingly interconnected global economy. This necessitates political will, a long-term vision, and a commitment to evidence-based policy making, moving beyond outdated assumptions to unlock a new era of competitive growth.
