What is the difference between marginal and effective tax rate?

Your marginal tax rate is the rate applied to your last dollar of income — it determines the tax impact of earning more or claiming deductions. Your effective tax rate is total tax paid divided by total income, representing your actual overall tax burden. A single filer earning $90,000 has a marginal rate of 22% but an effective federal income tax rate of approximately 12.7%. The gap exists because lower portions of income are taxed at 10% and 12%. Understanding both rates is critical: use the marginal rate when evaluating retirement contributions (a $10,000 401k deduction saves $2,200 at the 22% marginal rate), and use the effective rate for budgeting and comparing tax burdens across income levels or countries.

How is capital gains tax calculated?

Capital gains tax depends on how long you held the asset. Short-term gains (held under one year) are taxed as ordinary income at your regular bracket rate (10-37%). Long-term gains (held over one year) receive preferential rates: 0% for taxable income under $47,025 (single) / $94,050 (married), 15% up to $518,900 / $583,750, and 20% above those thresholds. High earners also pay a 3.8% Net Investment Income Tax on gains. This rate difference creates strong incentive to hold investments for at least one year — on a $10,000 profit, the tax difference between short-term (22-37%) and long-term (15%) can be $700-2,200. Tax-loss harvesting — selling losing investments to offset gains — further reduces capital gains liability.

How does self-employment tax work for freelancers?

Self-employed individuals pay both the employer and employee shares of Social Security (12.4%) and Medicare (2.9%) taxes — a combined 15.3% on net self-employment earnings, calculated on 92.35% of net income. On $100,000 net profit, SE tax is approximately $14,130. An additional 0.9% Medicare surtax applies to earnings above $200,000. Half of SE tax ($7,065 in this example) is deductible from gross income on Form 1040, reducing both income tax and AGI. Freelancers must make quarterly estimated payments to avoid underpayment penalties — set aside 25-30% of each invoice payment to cover both income tax and self-employment tax.

Which states have no income tax?

Nine states have no individual income tax: Alaska, Florida, Nevada, New Hampshire (taxes only interest and dividends, phasing out by 2027), South Dakota, Tennessee, Texas, Washington, and Wyoming. However, these states typically compensate through higher sales taxes (Texas 6.25% + local, Tennessee 7%), property taxes (Texas effective rate 1.68%), or other revenue sources. Washington has no income tax but imposes a 7% capital gains tax on gains exceeding $250,000. When comparing tax burdens across states, consider the total picture: income tax + property tax + sales tax + vehicle registration + estate tax. A state with 5% income tax but low property tax may cost less overall than a zero-income-tax state with 2%+ property tax rates.

Tax Calculators for Every Filing Situation

Q: How are federal income tax brackets structured in 2026?

The US uses seven progressive tax brackets for 2026: 10% on income up to $11,600 (single) / $23,200 (married filing jointly), 12% up to $47,150 / $94,300, 22% up to $100,525 / $201,050, 24% up to $191,950 / $383,900, 32% up to $243,725 / $487,450, 35% up to $609,350 / $731,200, and 37% above those thresholds. Only income within each bracket is taxed at that rate — a single filer earning $60,000 pays 10% on the first $11,600, 12% on $11,601-$47,150, and 22% on $47,151-$60,000. The resulting effective rate of approximately 13.5% is far below the 22% marginal rate. The standard deduction ($15,700 single) reduces taxable income before brackets apply.

Navigate the US tax system with our complete suite of tax calculators — federal income tax with all seven 2026 brackets, state income tax, capital gains, self-employment tax, property tax, sales tax, and more. Each calculator uses current rates and shows both marginal and effective rates.

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Navigating Tax Calculations: Rates, Brackets, and Strategies

Progressive brackets: why your effective rate is lower than your marginal rate

Investment income: capital gains and dividend taxation

Deductions and credits: reducing your tax bill

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