If you are a high earner or simply curious about how the American tax system works, you’ve likely asked: What is the highest tax bracket in the USA?
As of the 2024 and 2025 tax years, the highest federal individual income tax rate is 37%. However, understanding this number requires a look at how the progressive tax system works, the income thresholds for different filing statuses, and what might change in the near future.
The Highest Tax Rate: 37%
The U.S. uses a progressive tax system, meaning that as your income increases, the tax rate on the next dollar earned also increases. Currently, there are seven federal tax brackets: 10%, 12%, 22%, 24%, 32%, 35%, and 37%.
The 37% rate applies only to the portion of your taxable income that exceeds a specific threshold set by the IRS.
2024 Tax Year Thresholds (Taxes filed in 2025)
For the 2024 tax year, you reach the 37% bracket if your taxable income exceeds:
- Single filers: $609,350
- Married filing jointly: $731,200
- Head of household: $609,350
- Married filing separately: $365,600
2025 Tax Year Thresholds (Taxes filed in 2026)
Due to inflation adjustments, the IRS has raised the thresholds for 2025:
- Single filers: $626,350
- Married filing jointly: $751,600
- Head of household: $626,350
- Married filing separately: $375,800
Marginal Rate vs. Effective Rate: A Crucial Distinction
One of the most common misconceptions is that if you “hit” the 37% bracket, the government takes 37% of your entire income. This is false.
The U.S. uses marginal tax rates. Think of your income as filling up different “buckets”:
- Your first ~$11,600 (for singles) is taxed at 10%.
- The next chunk of income is taxed at 12%.
- …and so on.
Only the dollars you earn above the top threshold (e.g., $609,350) are taxed at 37%. Your Effective Tax Rate—the actual percentage of your total income paid to the IRS—will always be lower than 37% because your lower earnings are taxed at the lower bracket rates.
Factors That Lower Your Taxable Income
You don’t pay taxes on your gross salary. Your tax bracket is determined by your Taxable Income, which is calculated after:
- Standard Deduction: In 2024, this is $14,600 for singles and $29,200 for married couples.
- Itemized Deductions: Such as mortgage interest, state and local taxes (SALT) up to $10,000, and charitable contributions.
- 401(k) and HSA Contributions: These reduce your taxable income dollar-for-dollar.
Are There Taxes Higher Than 37%?
While 37% is the highest income tax bracket, high earners often pay more due to other factors:
- Additional Medicare Tax: High earners pay an extra 0.9% Medicare tax on wages above $200,000 (single) or $250,000 (joint).
- Net Investment Income Tax (NIIT): A 3.8% tax on investment income for those above certain thresholds.
- State Taxes: If you live in a high-tax state like California or New York, your combined federal and state marginal rate could exceed 50%.
The Future: The 2026 “Sunset”
The current 37% rate was established by the Tax Cuts and Jobs Act (TCJA) of 2017. However, many provisions of this law are temporary.
Unless Congress acts to extend the law, the tax brackets are scheduled to “sunset” at the end of 2025. If this happens, in 2026, the highest tax bracket is expected to revert to 39.6%.
Summary
The highest federal tax bracket in the USA is currently 37%. It applies only to the wealthiest Americans—specifically those earning over roughly $600,000 to $750,000 depending on filing status. By utilizing deductions and understanding marginal rates, even those in the highest bracket can often lower their actual tax bill significantly.
Disclaimer: Tax laws are subject to change. Always consult with a qualified tax professional or CPA for advice regarding your specific financial situation.