Estonia has the best tax code in the OECD. For the thirteenth consecutive year, the Tax Foundation’s 2026 International Tax Competitiveness Index places it first, with a perfect score of 100. Latvia ranks second. Lithuania sits fifth. The three Baltic states occupy three of the top five places. The last place is taken by France.
The Index measures how well a country’s tax system encourages investment and growth while raising revenue with minimal distortion. It evaluates corporate taxes, individual taxes, consumption taxes, property taxes, and cross-border rules across more than forty variables. A competitive system keeps rates low, bases broad, and rules simple. Estonia excels on every count that matters most.
Let’s break it down. Estonia taxes corporate profits only when they are distributed, at a rate of 22%. Profits kept inside the company to reinvest carry a zero rate. Individuals face a flat 22% tax on their income. Dividends that have already been taxed at the corporate level remain untaxed in the shareholder’s hands. Property tax falls solely on the value of land. The system is territorial: foreign profits earned by Estonian companies stay exempt. There is no estate tax, or inheritance tax, and no tax on property transfers or financial transactions.
This structure rewards capital formation. For instance, a company that retains earnings to expand pays nothing until the owners take the money out. The same rate applies to wages and to distributed profits, so the system treats labor and capital consistently. Tax returns stay short, and compliance costs low. Investment decisions stay undistorted by differential rates or deductions.
The rest of the OECD trails for familiar reasons. Many countries tax corporate profits every year whether or not they are distributed, then tax the dividends again. They layer progressive brackets on individual income. They narrow the base of value-added taxes so that only half of consumption is covered. They impose wealth taxes, financial-transaction taxes, and high withholding taxes on cross-border payments.
In comparison, France’s overall score is 45.7. Its combined corporate rate reaches 36.1%. Its property taxes multiply across estates, bank assets, and real-estate wealth. These features raise the cost of investing and hiring.
Argentina sits outside the OECD, yet its tax system displays the same defects in sharper form. More than 150 taxes, rates, and contributions operate across national, provincial, and municipal levels. Income-tax evasion reaches 50%. The lost revenue equals 4 to 5% of GDP each year. Six major taxes collect most of the money; the remaining 140-plus generate administrative costs that exceed their yield. Businesses and workers navigate overlapping rules, contradictory deductions, and frequent changes. The complexity itself becomes a subsidy to informality.
WAI, together with Fundación Internacional Bases, has proposed a concrete alternative in the joint policy paper “Argentina’s Path to Fiscal Simplicity Through Flat Tax Reform”. The proposal adapts the flat-tax model suggested by economists Robert Hall and Alvin Rabushka and proven in Estonia. The core rate is 15% for both individuals and businesses. Income is taxed once, at the source. Investment is fully deductible in the year it is made. A provincial sales tax of 13% replaces most subnational levies. Municipal charges remain limited to services delivered. Unproductive taxes that raise little revenue are eliminated.
This design follows Estonia’s logic — a single low rate removes the incentive to hide income. Immediate expensing of investment eliminates the double taxation of saving. The tax return fits on a short form. Because the rate is low and the rules are clear, evasion loses its advantage. The paper estimates that bringing Argentina’s evasion rate down to Chile’s level of roughly 25 percent would recover 2 to 2.5% points of GDP annually, resources comparable to the current infrastructure budget. In contrast, the lower rate and simpler system encourage the activity that expands the base further.
International experience also supports this projection. Estonia raised substantial additional revenue after adopting its flat system in 1994. Georgia quadrupled its tax collections and lifted its tax-to-GDP ratio to 25% after introducing a flat rate. Slovakia recorded clear gains in both revenue and investment. 11 countries that moved to flat taxes maintained or increased collections while simplifying administration. The pattern remains consistent: lower rates, broader bases, and fewer rules produce higher voluntary compliance and faster capital formation.
The Tax Foundation’s ranking supplies an independent benchmark. Estonia’s system ranks first since it minimizes the tax on investment and treats income neutrally. Argentina’s present system does the opposite. Replacing more than 150 overlapping charges with a 15% flat tax on individuals and businesses, full investment expensing, and a simple provincial sales tax would move Argentina toward the same competitive standard.
As Estonia’s code has remained the OECD’s most competitive for thirteen years while funding government priorities and supporting sustained growth, Argentina can adopt the same principles. Single rates and a layer of tax, immediate deduction of investment, and conversion of the tax system into a valuable asset. The resulting clarity will attract capital, reduce informality, and expand the revenue base that a simpler system can collect. Fiscal simplicity, once implemented, turns the tax system into an engine of growth.
* Tetiana Rak is the Chief Operations Officer (COO) at We Are Innovation. A journalist and freedom activist with 8 years of experience, Tania has worked with renowned media outlets including CNN, TechCrunch, Fox News, HackerNoon, the BBC, and Radio Free Europe, among others. Her unwavering dedication to championing the ideas of technological advancements and global digital transformations has earned her a distinguished reputation in the field. Through her work, Tania promotes the ideas of liberty and individual rights as a cornerstone of any rights-respecting society. Strengthened by the experience of war in Ukraine, Tania’s beliefs also stand for promoting technological advancements as a transformative tool to advance liberty, giving people the opportunity to speak, act, and pursue happiness without unnecessary external restrictions.
Source: We Are Innovation
