Tax Bracket Calculator

Progressive brackets, in plain language

The United States federal income tax is progressive. Income is sliced into brackets, and each slice is taxed at its own rate. The first dollars of taxable income are taxed at 10 percent. The next slice is taxed at 12 percent. The slice after that is taxed at 22 percent. And so on up to 37 percent at the top. Your total tax is the sum of what falls inside each slice, not a single rate applied to the whole return.

The most common misconception in personal finance

The idea that moving into a higher bracket taxes all your income at that higher rate is wrong, and it costs households real money. People turn down raises, decline overtime, and refuse Roth conversions because they think one extra dollar of income triggers a punitive rate on their whole year. It does not. Only the dollars that land inside the new bracket are taxed at that bracket's rate. Every dollar below stays where it was.

Marginal rate versus effective rate

Marginal rate is the rate on your next dollar. That is the number that matters for decisions about earning more, converting more, or realizing an investment gain. Effective rate is total tax divided by total taxable income. That is the number that matters when comparing years or comparing households. The effective rate is almost always meaningfully lower than the marginal rate because the marginal rate only applies to the top slice.

Taxable income is not the same as gross income

Taxable income is gross income minus above-the-line adjustments and either the standard deduction or itemized deductions. For 2025 the standard deduction is $15,000 for singles, $30,000 for married filing jointly, and $22,500 for heads of household. The tool takes taxable income as input, so if you are starting from a W-2 gross number, subtract deductions first.

Ordinary income and long-term capital gains sit on different schedules

The brackets shown here are for ordinary income, which covers wages, business income, interest, ordinary dividends, short-term capital gains, and traditional retirement account withdrawals. Long-term capital gains and qualified dividends use a separate 0, 15, and 20 percent schedule, potentially plus the 3.8 percent Net Investment Income Tax at higher incomes. The two schedules interact. Ordinary income stacks first and pushes long-term gains into the higher gain brackets, which is why serious tax planning models the two together.

Why bracket lines matter for planning

Every Roth conversion, every business owner distribution decision, every stock option exercise, and every large charitable gift is really a question about where in the bracket structure the next dollar lands. Bracket-fill conversion, in low-income years between retirement and Required Minimum Distributions, is the canonical example. Sizing the conversion to fill a bracket without crossing into the next one is the difference between an elegant plan and an expensive year.