Other countries do not pay taxes like the US. Among developed economies, the American system is an outlier on several fronts at once: it relies more heavily on individual income taxes than almost any peer, collects far less through consumption taxes, and is one of only two countries on earth that taxes its citizens on worldwide income regardless of where they live. If you have ever wondered whether other countries pay taxes like the US does, the short answer is no, and the differences matter whenever you earn, invest, or move across a border.
Where the Tax Money Comes From
The clearest way to see the gap is to look at the revenue mix. Individual income taxes account for roughly 40 percent of all US tax revenue, compared with about 24 percent across OECD countries on average. Consumption taxes tell the opposite story: they make up only about 17 percent of US revenue versus 31 percent in the typical developed country.1OECD. Revenue Statistics 2025 The US leans on income. Most of the world leans on spending.
The overall load is lighter too. The OECD average tax-to-GDP ratio hit 34.1 percent in 2024, while the US consistently falls several points below that mark.1OECD. Revenue Statistics 2025 Many European countries with comprehensive public healthcare and generous social safety nets collect 40 percent of GDP or more. The tradeoff is visible: higher taxes fund broader public services, while the US model leaves more income in private hands but shifts more of the cost for things like healthcare and retirement saving onto individuals.
Income Tax Rates: Progressive Here, Flat in Some Places
The US federal income tax is progressive, meaning people who earn more pay a higher percentage. Rates start at 10 percent on the lowest bracket of taxable income and climb to 37 percent at the top.2Internal Revenue Service. Understanding Taxes – Theme 3: Fairness in Taxes – Lesson 3: Progressive Taxes Most developed countries follow this same general model, including Canada, the United Kingdom, Germany, and Japan, though bracket structures and top rates vary widely.
A smaller group of countries take a different approach entirely. Bulgaria applies a flat 10 percent rate on everyone, Hungary charges 15 percent, and Romania uses 16 percent. These flat-tax systems are concentrated in Eastern Europe, where they were adopted after the fall of the Soviet Union to attract investment and simplify collection. Critics argue flat taxes hit lower earners harder in practical terms because a larger share of their income goes to essentials. Supporters counter that the simplicity reduces avoidance and administrative cost.
Citizenship-Based Taxation: Where the US Stands Alone
This is where the American system genuinely surprises people. The US and Eritrea are the only two countries that tax based on citizenship rather than residency. Hold a US passport, and you owe the IRS a tax return on your worldwide income every year, even if you have not set foot in the country for decades.
Every other major economy taxes based on where you live. Under a territorial approach, only income earned within a country’s borders gets taxed there. Under a residence-based approach, you pay taxes to the country where you live, and once you leave, the obligation to the country you left ends. The US approach does not work that way. An American working in London, Tokyo, or São Paulo files both a local return and a US federal return, and the filing obligation never goes away unless the person formally renounces citizenship. Americans abroad do get an automatic extension to June 15 for filing their federal return, though interest on any tax owed still runs from the regular April deadline.3Internal Revenue Service. US Citizens and Resident Aliens Abroad – Automatic 2-Month Extension of Time to File
Sales Tax vs. Value Added Tax
The US is the only major economy without a national consumption tax. Sales taxes here are set by states and localities and collected only at the final retail sale. Combined state and local rates range from zero in the five states with no sales tax up to about 10 percent in the highest-taxed jurisdictions. The patchwork of thousands of different local rates is something no other developed country replicates.
Over 170 countries use a Value Added Tax instead.4United Nations Department of Economic and Social Affairs (UN DESA). Overview of VAT/GST in Developing Countries VAT differs from sales tax in a fundamental way: it is collected at every stage of production, not just the final sale. A manufacturer pays VAT on raw materials, then charges VAT when selling to a wholesaler, who charges it again when selling to a retailer. At each step, the business reclaims the VAT it paid on its inputs, so only the value added at that stage is effectively taxed. The final consumer bears the full cost, but tax authorities collect revenue throughout the supply chain rather than depending on a single point of collection at the register.
EU standard VAT rates run from 17 percent in Luxembourg to 27 percent in Hungary, with most countries falling between 19 and 25 percent. These rates are far higher than any US sales tax, but they replace or supplement revenue the US collects through its income-heavy model.
Corporate Rates and the Global Minimum Tax
On corporate taxation, the US is much closer to the pack. The federal corporate rate is 21 percent, and the unweighted average statutory corporate rate across 181 jurisdictions is about 23.6 percent. That number has fallen for decades: the global average sat above 40 percent in 1980.5Tax Foundation. Corporate Tax Rates Around the World, 2025 The OECD member-country average has leveled off around 21 percent in recent years.6OECD. New OECD Data Highlight Stabilisation in Statutory Corporate Tax Rates Worldwide
That decline fueled competition among countries cutting rates to attract multinational headquarters. To slow it, over 140 countries agreed through the OECD to a global minimum corporate tax of 15 percent. The rules require large multinational groups to pay a top-up tax in any jurisdiction where their effective rate falls below that floor.7OECD. Global Minimum Tax EU member states have begun implementing the framework. The US has been part of the negotiations, but implementation on the American side remains a work in progress.
Payroll Contributions and Social Benefits
Nearly every developed country funds retirement, disability, and unemployment through mandatory payroll contributions. In the US, employees and employers each pay 6.2 percent of wages toward Social Security, up to a taxable wage base of $184,500 in 2026.8Social Security Administration. 2026 Cost-of-Living Adjustment (COLA) Fact Sheet Medicare adds another 1.45 percent from each side, with no earnings cap. Self-employed workers pay both halves, for a combined 15.3 percent on earnings up to the Social Security cap.9Social Security Administration. How Is Social Security Financed?
Those rates sound significant, but the US actually collects a smaller share of its total tax revenue from social contributions than the average developed country. Many European nations fund broader benefits through much higher payroll contributions. In France and Germany, combined employer-employee social contributions can exceed 40 percent of wages, covering healthcare, pensions, unemployment, family benefits, and more. The higher contributions correspond to more expansive public benefits: universal healthcare, longer parental leave, and more generous unemployment insurance than the US provides.
What the US Approach Means for Americans Abroad
Because the US ties taxation to citizenship, Americans living overseas face compliance obligations that no other major economy puts on its people. Several mechanisms try to keep the burden manageable, but each adds paperwork rather than removing it.
Totalization Agreements
When an American works abroad, both countries may try to collect social security contributions on the same wages. Totalization agreements solve this by assigning each worker to one country’s system. The US has these agreements with about 30 nations, covering most of Western Europe, Canada, Australia, Japan, South Korea, and several others.10Social Security Administration. U.S. International Social Security Agreements They also let workers combine credits from both countries to qualify for benefits they would otherwise miss, with each country paying based only on the time worked there. To use US credits in a totalization calculation, you need at least six quarters of US coverage.
Foreign Earned Income Exclusion and Foreign Tax Credit
For 2026, US citizens and resident aliens living and working abroad can exclude up to $132,900 of foreign earned income from their US taxable income.11Internal Revenue Service. Inflation Adjustments for Various Code Provisions for 2026 (Rev. Proc. 2025-32) To qualify, you must either be a bona fide resident of a foreign country for an entire tax year or be physically present in a foreign country for at least 330 full days during any 12-consecutive-month period.12Internal Revenue Service. Foreign Earned Income Exclusion – Physical Presence Test The exclusion only applies to earned income like wages and self-employment income, not to investment returns or pensions.
For income above the exclusion, or for investment income the exclusion does not cover, the foreign tax credit lets you offset your US tax liability dollar-for-dollar against income taxes you paid to another country. You claim it on Form 1116, and the foreign tax must meet four basic requirements: it was imposed on you, you actually paid or accrued it, it is a legally owed tax, and it qualifies as an income tax.13Internal Revenue Service. Publication 514 (2025), Foreign Tax Credit for Individuals In most cases, the combination prevents Americans abroad from paying significantly more total tax than they would under a single country’s system. The compliance cost of filing in two jurisdictions, though, is real.
FBAR and FATCA Reporting
The worldwide-taxation approach comes with reporting obligations that have no parallel in other countries’ tax systems. If the combined value of your foreign financial accounts exceeds $10,000 at any point during the year, you must file a Report of Foreign Bank and Financial Accounts (FBAR) electronically with FinCEN by April 15, with an automatic extension to October 15.14Internal Revenue Service. Report of Foreign Bank and Financial Accounts (FBAR) Penalties are steep. Non-willful violations can cost up to roughly $16,500 per form, and willful violations carry the greater of about $100,000 or 50 percent of the account balance at the time of the violation, assessed per account.15Internal Revenue Service. Report of Foreign Bank and Financial Accounts (FBAR) – IRM 4.26.16
The Foreign Account Tax Compliance Act (FATCA) adds a second layer. Form 8938 kicks in when foreign financial assets exceed $50,000 at year-end or $75,000 at any point during the year for US-resident single filers, with higher thresholds for joint filers and much higher ones for Americans living abroad.16Internal Revenue Service. Do I Need to File Form 8938, Statement of Specified Foreign Financial Assets FATCA also requires foreign banks to report US account holders directly to the IRS. FBAR and FATCA overlap but are not interchangeable: different asset types, different valuations, different agencies, different penalties. Filing one does not satisfy the other.
The Exit Tax
Given all of the above, some Americans abroad consider renouncing citizenship. The US has a response to that too. An exit tax treats a covered expatriate’s assets as sold at fair market value on the day before expatriation, with any unrealized gain above an inflation-adjusted exclusion taxed as if the sale actually happened.17Office of the Law Revision Counsel. 26 US Code 877A – Tax Responsibilities of Expatriation The rule applies if your average annual net income tax for the five prior years exceeds $211,000 for 2026, if your net worth is $2 million or more, or if you cannot certify five years of tax compliance under penalty of perjury.11Internal Revenue Service. Inflation Adjustments for Various Code Provisions for 2026 (Rev. Proc. 2025-32) No other country imposes anything quite like it on departing citizens, which is one more reflection of how deeply the US ties taxation to the passport rather than the address.