The Tax Bracket Calculator is a free browser-based reference showing which 2024 federal income tax bracket a given taxable income falls in, and how that income is taxed slice by slice. Enter a taxable income figure and a filing status — single, married filing jointly, married filing separately, or head of household — and the page returns the marginal rate, the effective rate, an estimated federal income tax, the current bracket’s income range, the threshold where the next bracket begins, the complete bracket table for that status, and how much income sits in each band. It uses 2024 tables only and applies no deductions or credits.
What people use it for
Understanding why a raise is not taxed at your bracket rate
The most common misconception in personal tax is that entering a higher bracket taxes all of your income at the higher rate. The income distribution panel disproves it visually: each band is charged its own rate, and only the portion above the threshold is touched by the new one.
Judging whether a year-end deferral is worth arranging
The page reports the exact income at which the next bracket starts and how far away from it you are. If a bonus or a December invoice would push the top slice over that line, the gap tells you how much income would be taxed at the higher rate — which is the figure that decides whether deferring anything is worth the trouble.
Comparing filing statuses on the same income
The four statuses have different band widths, and the difference is largest through the middle of the table where most households sit. Running the same taxable income as single, head of household and married filing jointly shows plainly how much of the outcome is driven by filing status rather than by the income itself.
Explaining progressive taxation to someone else
The breakdown prints as "income in band × rate = tax" for every row, ending in a total. That layout tends to be more convincing than any verbal explanation, which makes it useful in a classroom, in a client conversation, or for settling the recurring argument about what a tax bracket actually does.
Worked examples
Input: Single filer, $58,000 of taxable income.
Result: The first $11,600 is taxed at 10% ($1,160), the next $35,550 at 12% ($4,266), and the remaining $10,850 at 22% ($2,387) — about $7,813 in total. The marginal rate is 22% but the effective rate is roughly 13.47%. The bracket runs $47,151 to $100,525, with 24% beginning at $100,526.
Input: Married filing jointly, $150,000 of taxable income.
Result: 10% on $23,200 gives $2,320, 12% on $71,100 gives $8,532, and 22% on $55,700 gives $12,254 — about $23,106 in total. The marginal rate is 22% and the effective rate roughly 15.40%. The 24% band starts at $201,051, some $51,051 of additional income away.
Input: A single filer comparing $47,000 with $48,000 of taxable income.
Result: At $47,000 the filer sits in the 12% band ($11,601 to $47,150) owing about $5,408. At $48,000 the top slice crosses into 22% and the total becomes about $5,613. The extra $1,000 of income cost $205 in tax — not 22% of the whole $48,000.
Written by Ahsan Mahmood. Last updated . This calculator runs entirely in your browser and produces estimates, not tax advice.