How Federal Tax Brackets Work in 2025
The United States uses a progressive tax system with seven federal income tax brackets. Each bracket taxes a specific portion of your income at an increasing rate. The critical concept to understand is that your entire income is not taxed at a single rate — instead, your income is divided into layers, and each layer is taxed independently. The first layer of income is taxed at 10%, the next layer at 12%, and so on up to 37% for the highest earners. This means that earning a dollar more never results in taking home less money overall.
For example, consider a single filer with $80,000 in taxable income for 2025. The first $11,925 is taxed at 10% ($1,193). Income from $11,926 to $48,475 is taxed at 12% ($4,386). Income from $48,476 to $80,000 is taxed at 22% ($6,936). The total federal tax is $12,515, giving an effective rate of 15.6% — far below the 22% marginal rate. Understanding this distinction helps you make smarter financial decisions about raises, bonuses, and retirement contributions.
2025 Federal Tax Brackets for Every Filing Status
The IRS adjusts bracket thresholds each year for inflation. For 2025, all seven rates remain unchanged (10%, 12%, 22%, 24%, 32%, 35%, 37%), but the income ranges shifted upward. Here are the brackets for the three primary filing statuses:
| Rate | Single | Married Filing Jointly | Head of Household |
|---|---|---|---|
| 10% | Up to $11,925 | Up to $23,850 | Up to $17,000 |
| 12% | $11,926 – $48,475 | $23,851 – $96,950 | $17,001 – $64,850 |
| 22% | $48,476 – $103,350 | $96,951 – $206,700 | $64,851 – $103,350 |
| 24% | $103,351 – $197,300 | $206,701 – $394,600 | $103,351 – $197,300 |
| 32% | $197,301 – $250,525 | $394,601 – $501,050 | $197,301 – $250,500 |
| 35% | $250,526 – $626,350 | $501,051 – $751,600 | $250,501 – $626,350 |
| 37% | Over $626,350 | Over $751,600 | Over $626,350 |
Marginal Rate vs. Effective Rate: What's the Difference?
Your marginal tax rate is the rate applied to your last dollar of taxable income — the highest bracket you reach. Your effective tax rate is the average rate you pay across all brackets, calculated as total tax divided by total taxable income. The effective rate is always lower than the marginal rate because lower brackets tax the first portions of your income at lower rates. A single filer with $100,000 in taxable income has a 22% marginal rate but an effective rate of approximately 17.4%.
Knowing both rates matters for different decisions. Your marginal rate tells you how much tax you save (or owe) on the next dollar — useful for evaluating the tax impact of a traditional IRA contribution, a charitable donation, or a raise. Your effective rate tells you the actual percentage of income going to federal taxes — useful for budgeting and comparing your total tax burden across years or to other taxpayers.
How the One Big Beautiful Bill Changed Your Brackets
The One Big Beautiful Bill Act (OBBBA), signed in July 2025, did not change the seven tax rates themselves, but it expanded the income ranges for each bracket through a combination of inflation adjustments and legislative changes. The standard deduction also increased significantly — to $15,750 for single filers and $31,500 for married filing jointly — which reduces taxable income before brackets are applied. The net effect is that most taxpayers see slightly lower effective tax rates compared to 2024.
The OBBBA also introduced new above-the-line deductions for tips, overtime, and seniors that reduce taxable income before the bracket calculation begins. Workers who benefit from these deductions may find themselves in a lower bracket entirely. For example, a single filer earning $55,000 who deducts $12,500 in overtime pay would have a taxable income of $26,750 after the standard deduction and overtime deduction, placing them entirely in the 12% bracket instead of reaching the 22% bracket.