Understanding how US federal income tax brackets work is essential for smart financial planning. The US uses a progressive tax system. Therefore, the government taxes higher portions of your income at higher rates. However, moving into a higher marginal bracket never lowers your overall take-home pay.
How Progressive Tax Brackets Work
The US federal income tax system divides your taxable income into distinct chunks called brackets. Consequently, each chunk pays a specific tax rate rather than your entire salary paying a single flat percentage.
For instance, if your income crosses into a higher bracket, only the money above that specific threshold pays the higher rate. As a result, earning additional income always increases your net earnings after taxes.
2026 Federal Tax Brackets for Single Filers
The Internal Revenue Service adjusts tax thresholds annually for inflation. For the 2026 tax year, single filers use these standard tax brackets:
- 10% Bracket: Income up to $12,400
- 12% Bracket: Income from $12,401 to $50,400
- 22% Bracket: Income from $50,401 to $105,700
- 24% Bracket: Income from $105,701 to $201,775
- 32% Bracket: Income from $201,776 to $256,225
- 35% Bracket: Income from $256,226 to $640,600
- 37% Bracket: Income above $640,600
Furthermore, single filers receive a standard deduction of $16,100. The IRS subtracts this deduction directly from your gross income before applying any federal tax rates.
Step-by-Step Calculation Example
To see this in action, let us calculate the tax for a single filer who earns $75,000 per year:
- Calculate Taxable Income: First, subtract the $16,100 standard deduction from $75,000. This leaves $58,900 in taxable income.
- Apply the 10% Rate: The first $12,400 pays 10% tax, which equals $1,240.
- Apply the 12% Rate: Next, the income between $12,400 and $50,400 ($38,000) pays 12% tax, which equals $4,560.
- Apply the 22% Rate: Finally, the remaining $8,500 above $50,400 pays 22% tax, which equals $1,870.
Adding these amounts gives a total federal tax bill of $7,670. Although the filer reaches the 22% top marginal bracket, their actual effective tax rate is only about 10.2% of their total gross income.
Important Limitations and Exclusions
This guide specifically focuses on single tax filers. However, taxpayers filing as married filing jointly or head of household follow different income limits and standard deductions set by official regulations.
Additionally, this guide does not cover state income taxes, Social Security, Medicare payroll taxes, or tax credits like the Child Tax Credit. You can review official updates directly on the Internal Revenue Service (IRS) Website. For related guides, visit our Guides & Explainer Hub and read our Privacy Policy.