Tax Bracket Calculator

How Do Federal Tax Brackets Work?

The US uses a progressive tax system where income is divided into brackets, each taxed at an increasing rate. You do not pay the bracket rate on all your income - only on the portion within each bracket. Enter your taxable income and filing status in the calculator above to see the total federal tax, effective tax rate, after-tax income, and a breakdown showing how much tax applies at each bracket level. The effective rate (total tax / total income) is always lower than your marginal bracket rate.

2024 Federal Tax Brackets for Single Filers

10%: $0 to $11,600. 12%: $11,601 to $47,150. 22%: $47,151 to $100,525. 24%: $100,526 to $191,950. 32%: $191,951 to $243,725. 35%: $243,726 to $609,350. 37%: above $609,350. A single filer earning $85,000 in taxable income: 10% on $11,600 = $1,160. 12% on $35,550 = $4,266. 22% on $37,850 = $8,327. Total tax: $13,753. Effective rate: 16.2%. Even though this person is "in the 22% bracket," they pay an effective rate of only 16.2% because the lower brackets apply to the first portions of income.

Married Filing Jointly Brackets

10%: $0 to $23,200. 12%: $23,201 to $94,300. 22%: $94,301 to $201,050. 24%: $201,051 to $383,900. 32%: $383,901 to $487,450. 35%: $487,451 to $731,200. 37%: above $731,200. Married brackets are roughly double the single brackets through the 32% level, preventing a "marriage penalty" for most couples. A married couple with $150,000 combined taxable income: 10% on $23,200 = $2,320. 12% on $71,100 = $8,532. 22% on $55,700 = $12,254. Total: $23,106. Effective rate: 15.4%. The couple saves approximately $3,200 compared to filing as two single individuals at $75,000 each.

Marginal Rate vs Effective Rate Explained

Your marginal rate is the percentage applied to your next dollar of income - the bracket you are currently in. Your effective rate is total tax divided by total income. A single filer at $85,000 taxable income has a 22% marginal rate but a 16.2% effective rate. The marginal rate matters for financial decisions: earning an extra $1,000 through overtime or a side project generates $220 in additional federal tax (22% marginal rate), not $162 (effective rate). The effective rate matters for overall tax burden assessment and year-end planning. Both numbers are useful but for different purposes.

How Do Deductions Move You Between Brackets?

Deductions reduce taxable income before brackets are applied. A single filer earning $100,000 gross with the $14,600 standard deduction has $85,400 taxable income (22% bracket). Contributing $6,000 to a traditional IRA reduces taxable income to $79,400, still in the 22% bracket but saving $1,320 in federal tax. Contributing $23,500 to a 401(k) reduces taxable income to $61,900, saving $5,170 in tax. A single filer earning $50,000 with $14,600 standard deduction has $35,400 taxable income. Adding a $5,000 traditional IRA contribution drops them from the 12% bracket territory, saving $600. Strategic use of deductions targets the highest marginal rate income first.

Capital Gains: A Separate Rate Schedule

Long-term capital gains (assets held over one year) and qualified dividends are taxed at preferential rates: 0% for taxable income up to $47,025 (single) or $94,050 (married). 15% up to $518,900 (single). 20% above that. These rates are significantly lower than ordinary income brackets. A single filer with $40,000 in wages and $10,000 in long-term capital gains: the wages fill the 10% and 12% brackets, and the capital gains stack on top but are taxed at 0% because total income stays below $47,025. This is why tax-efficient investing (holding investments over one year) saves substantial tax compared to short-term trading.

State Income Tax: The Additional Layer

Nine states have no income tax: Alaska, Florida, Nevada, New Hampshire (dividends/interest only), South Dakota, Tennessee, Texas, Washington, and Wyoming. Remaining states levy income tax from 1% to 13.3% (California top bracket). Some states use flat rates: Illinois (4.95%), Michigan (4.25%), Pennsylvania (3.07%), Colorado (4.4%). Others have progressive brackets like the federal system. A person in the 24% federal bracket living in California top bracket (13.3%) faces a combined marginal rate of 37.3% on their highest-bracket income before FICA. State income tax is deductible on federal returns up to the $10,000 SALT cap.

Tax Planning Strategies Using Bracket Awareness

Roth conversions: in low-income years, convert traditional IRA funds to Roth IRA up to the top of your current bracket, paying tax at a low rate now to enjoy tax-free withdrawals later. Income timing: if you control when income is received (freelancers, business owners), shifting income between years to avoid jumping into higher brackets saves money. Charitable giving: bunching multiple years of charitable donations into one year through a donor-advised fund can push you into itemizing, creating deductions that exceed the standard deduction. Harvesting capital losses to offset gains keeps investment income in the lowest tax brackets. Each strategy requires bracket-level awareness to execute effectively.

Frequently asked questions