The most common misconception in personal finance is that earning more money and "moving into a higher tax bracket" means all your income is taxed at the higher rate. This is completely wrong. The U.S. uses a marginal tax system where only the income within each bracket is taxed at that bracket's rate.
Step 1: The 2026 Federal Tax Brackets (Single)
| Taxable Income | Rate |
|---|---|
| $0 – $11,925 | 10% |
| $11,926 – $48,475 | 12% |
| $48,476 – $103,350 | 22% |
| $103,351 – $197,300 | 24% |
| $197,301 – $250,525 | 32% |
| $250,526 – $626,350 | 35% |
| Over $626,350 | 37% |
Step 2: Calculate Taxable Income
Start with your gross income. Subtract above-the-line deductions (401(k) contributions, HSA, student loan interest). Then subtract either the standard deduction ($15,000 for single filers) or itemized deductions, whichever is larger. The result is your taxable income.
Step 3: Apply Each Bracket
$11,925 × 10% = $1,192.50 $36,550 × 12% = $4,386.00 $36,525 × 22% = $8,035.50 Total Tax = $13,614.00 Marginal rate: 22%. Effective rate: $13,614 / $85,000 = 16.0%. You are "in the 22% bracket" but only pay 16% on average.
Calculate your exact federal and state tax liability
Try the Income Tax Calculator →Step 4: Effective vs Marginal Rate
Your marginal rate is the rate on your last dollar earned. Your effective rate is total tax divided by total income — your actual average rate. The effective rate is always lower than the marginal rate because lower brackets apply to the first portions of income. This is why a raise never results in less take-home pay.
Key Takeaways
- Only income within each bracket is taxed at that rate — not all your income.
- A raise never reduces your take-home pay under a marginal tax system.
- Your effective rate is always lower than your marginal rate.
- 401(k) contributions reduce taxable income at your highest marginal rate, providing the biggest tax savings.