Why the U.S. top income tax rate scores weakly despite many deductions
The United States receives a weak-to-moderate top-income-tax rating of 42 out of 100 points. The measured starting point is 37 %. The result reflects the federal top marginal bracket, not the effective tax burden paid by every taxpayer.
This distinction is essential. The U.S. tax system is progressive, so the top federal rate applies only to income above the relevant threshold. At the same time, the top-rate indicator is intentionally strict: it asks what the highest statutory personal income tax rate can be at national level. On that measure, the United States is not a low-tax country.
What the measurement means
The measured value is the top federal individual income tax rate used for country comparison. It is not the average rate, not a take-home-pay estimate and not a full tax calculation. Filing status, deductions, credits, payroll taxes, state income taxes, local taxes and income type can all change the final burden.
Nomadino rates the top rate separately because high-income workers, founders, executives, investors with ordinary income and internationally mobile professionals often care about marginal exposure. A country may look acceptable at average income and still become expensive at the top. The United States fits that pattern.
Federal progressivity and the top bracket
The Internal Revenue Service publishes the federal income tax brackets and explains that taxable income is taxed in layers. This means a taxpayer does not pay the top rate on all income simply because they enter the top bracket. Lower portions remain taxed at lower rates.
For ordinary workers, standard deductions and credits can reduce taxable income substantially. That is why the U.S. effective-income-tax indicator is not identical to this top-rate indicator. A family with average earnings may face a moderate effective burden, while a high earner can still see a much harsher marginal rate on additional income.
The top-rate result therefore should be read as a ceiling signal. It is especially relevant for people who expect substantial salary, bonus, self-employment income, taxable business profit or other ordinary income. It is less informative for someone whose income is low, offset by deductions or taxed under different rules.
State taxes can make the real top burden higher
The country-level indicator uses a national comparison, but the U.S. is federal. State and sometimes local taxes can materially change the real burden. A person in Florida, Texas, Washington or Nevada may face no state personal income tax, while a person in California, New York, New Jersey or another high-tax state may face a much heavier combined rate.
This is one of the most important practical points for foreigners. The United States cannot be evaluated as a single tax location for personal planning. Two people with identical federal income can have very different outcomes depending on state residence, city taxes, payroll taxes, self-employment tax and whether income is wages, business profit or investment income.
The top federal rate is still the right national baseline for the indicator, but it understates the highest possible personal burden in some locations. For high earners, the state decision can be almost as important as the federal bracket.
Foreigners face status and source questions
Foreign nationals need to begin with tax status. U.S. citizens, lawful permanent residents, residents under the substantial-presence test and nonresidents with U.S.-source income can face very different filing duties. Visa category, work location and immigration status do not automatically answer the tax question.
The United States is also unusual because citizenship and green-card status can create broad reporting duties. For internationally mobile people, foreign bank accounts, foreign companies, foreign pensions, treaty positions and foreign tax credits may matter. The top-rate indicator does not capture this complexity, but it helps explain why the U.S. is not a simple tax-light destination.
A foreign founder or remote professional should also consider whether income is employment, self-employment, partnership income, corporate salary, dividends, capital gains or stock compensation. U.S. tax treatment can differ sharply between categories. A headline top rate is only the beginning of the analysis.
Why the rating is not lower
The U.S. does not receive the lowest possible rating because the federal top rate is not the highest in the world, and deductions, credits and bracket thresholds can soften the burden for many taxpayers. Some high-tax countries impose higher top rates, social charges or local additions that are even heavier.
The United States also offers planning flexibility in some cases. State choice, retirement accounts, business structure, deductions, credits and investment-income treatment can change outcomes. That does not turn the federal top rate into a low rate, but it means the visible bracket is not the whole story.
For comparison, the top-rate indicator is stricter than a lifestyle tax estimate. It penalises the federal ceiling but does not imply that every U.S. taxpayer pays that amount.
Why the rating is not higher
The rating cannot be high because the top statutory rate is materially above low-tax countries and above flat-rate systems that apply much lighter ceilings. High earners in the United States must also consider state taxes, payroll taxes, the net investment income tax in some cases and complex reporting rules.
Tax filing complexity is another practical drag. Even when the final amount is manageable, the process can be demanding. For foreigners with cross-border income, the burden is not just the rate but the documentation, forms, deadlines and professional fees required to stay compliant.
The result is therefore direct: the United States can be attractive for income opportunity, business scale and salaries, but it is not a top-rate tax haven.
Practical planning for high earners
A high earner considering the United States should model federal tax, state tax, payroll tax and filing status together. The difference between living in Miami and San Francisco, or Austin and New York City, can be substantial. Housing and salary may also differ, so the best tax location is not automatically the best economic location.
Foreigners should clarify whether they will become U.S. tax residents, whether treaty relief applies, how foreign income is treated and whether employer withholding is correct. Self-employed people need to pay special attention to self-employment tax and estimated payments.
Founders and equity-compensated employees should not rely on the wage-rate table alone. Stock options, restricted stock, capital gains, qualified small business stock, state sourcing and exit timing can all dominate the personal tax outcome.
Frequently Asked Questions
Is the measured value what every U.S. taxpayer pays?
No. It is the top federal marginal rate. Most taxpayers pay lower effective rates because income is taxed progressively and deductions can apply.
Do state income taxes matter?
Yes. State and local taxes can materially raise or lower the total burden, even though the indicator uses a national comparison basis.
Why does the U.S. score weakly here?
Because the top federal rate is high compared with low-tax countries, and some states add further tax exposure.
Can the United States still be financially attractive?
Yes. High salaries, business opportunities and state choice can offset tax burdens for some people, but the top rate itself remains a weakness.
Related indicators
- 💸 Effective Income Tax Rate in the United States
- 🛡️ Social Security Contributions in the United States
- 📂 Tax Filing Effort in the United States
- 🤝 Double Taxation Agreements in the United States
Sources
- Internal Revenue Service - federal income tax rates and brackets
- Internal Revenue Service - Publication 17 for individual federal income tax
- OECD - Taxing Wages 2025 methodology and international comparison
This article was created on June 23, 2026
