At a glance
Quick answer
The federal tax bracket calculator shows how ordinary taxable income is divided among progressive rate layers. Use it when the decision is about the rate on the next ordinary dollar, not total take-home pay or a complete return. Enter taxable income after deductions, not salary or adjusted gross income. The output explains why being in the 22% bracket does not make every dollar taxable at 22%. Preferential long-term gains and qualified dividends, payroll tax, credits, AMT, state tax, Form 8615, Schedule J income averaging, and foreign earned income tax worksheets are outside this focused bracket allocation.
How the calculation works
Fill each ordinary bracket from the bottom
Every filing status has a sequence of lower and upper boundaries. Taxable income first fills the 10% layer, then 12%, 22%, and higher layers as needed. The tax for a band equals the dollars inside that band multiplied by its rate. Adding all occupied bands gives ordinary income tax. The marginal rate is the rate assigned to the next ordinary dollar before another threshold or special rule changes the answer. The displayed effective rate divides the selected IRS method's tax by entered taxable income, not gross income or adjusted gross income.
Keep taxable income distinct from gross income
A salary does not enter the bracket schedule directly. Adjustments and the standard or itemized deduction normally intervene first. For a 2025 single filer, $100,000 of wages with the $15,750 standard deduction produces $84,250 of ordinary taxable income before other facts. A calculator entry of $100,000 taxable income therefore describes a different return. Capital gains and qualified dividends also use a stacking calculation rather than simply occupying ordinary bands.
Use bracket results for marginal planning only
Bracket allocation can help evaluate an extra wage dollar, a deductible contribution, or the ordinary-income portion of a conversion. It cannot determine withholding, refund, effective total burden, or AMT. A large deduction or preference item can require Form 6251 even when the regular bracket calculation is correct. State systems have separate brackets and definitions, so the federal marginal rate should never be presented as a state rate.
Test a threshold without creating a cliff
Crossing a bracket boundary does not make earlier income more expensive. If taxable income rises from $103,350 to $103,351 in the 2025 single schedule, only the additional dollar enters the 24% layer. The prior $103,350 keeps the tax shown in the example. That makes the bracket tool useful for checking the ordinary-income effect of a small bonus, conversion, or deduction. It is less useful when the transaction changes adjusted gross income, credit phaseouts, NIIT, premium assistance, or another rule outside ordinary bracket arithmetic. In those cases the complete scenario must be recalculated.
2025 and 2026 values
Tax year 2025
2025 final single brackets
For final 2025 single filer values, 10% ends at $11,925, 12% ends at $48,475, 22% ends at $103,350, and 24% ends at $197,300. The remaining rates are 32%, 35%, and 37%.
Tax year 2026
2026 planning single brackets
For 2026 planning, the comparable single ceilings are $12,400, $50,400, $105,700, and $201,775. Rates remain 10%, 12%, 22%, 24%, 32%, 35%, and 37%.
Recalculate it yourself
Worked example
$103,350 of 2025 single taxable income
A single filer enters exactly $103,350 of ordinary taxable income for 2025.
- First layer tax = $11,925 × 10% = $1,192.50.
- Second layer tax = ($48,475 − $11,925) × 12% = $36,550 × 12% = $4,386.
- Third layer tax = ($103,350 − $48,475) × 22% = $54,875 × 22% = $12,072.50.
- Total ordinary tax = $1,192.50 + $4,386 + $12,072.50 = $17,651.
Result
The ordinary federal tax is $17,651. The next ordinary dollar enters the 24% layer, but the earlier dollars retain their 10%, 12%, and 22% rates.
What is included
- Ordinary taxable income, filing status, selected year, every occupied bracket, tax per layer, total ordinary tax, the next dollar marginal rate, and the effective rate on entered taxable income.
- Final 2025 boundaries and labeled 2026 planning boundaries.
What is not included
- Gross-income deductions, payroll tax, credits, withholding, refund reconciliation, qualified-dividend and long-term-gain schedules, NIIT, and AMT.
- Form 8615, Schedule J income averaging, foreign earned income tax worksheets, state and local brackets, and conclusions about a complete return.
Common mistakes
Multiplying all income by the top rate
Progressive brackets preserve the lower rate on dollars already assigned to lower layers. Only the slice inside the top occupied band receives that rate.
Entering wages instead of taxable income
The field expects income after the applicable deduction. Using wages exaggerates the amount placed into the bracket schedule.
Putting preferential income in ordinary layers
Qualified dividends and net long-term gains can use 0%, 15%, and 20% schedules. Their stacking belongs in the investing calculators.
Frequently asked questions
What does the Tax brackets calculator show?
It allocates supported ordinary taxable income across federal brackets and identifies the marginal rate that applies to the next ordinary dollar.
Is my marginal bracket the rate paid on all income?
No. Federal brackets apply in layers. Only income within a bracket is taxed at that bracket's rate, so the effective rate is usually lower than the top marginal rate.
Are capital gains taxed through these ordinary brackets?
Not always. Qualified dividends and net long term capital gains can use separate federal rate schedules, so use the investing calculators when those amounts are material.
Primary sources
- 2025 Instructions for Form 1040, opens in a new tab
Reviewed 2026-07-25
- IRS Revenue Procedure 2024-40, opens in a new tab
Reviewed 2026-07-25
- IRS Revenue Procedure 2025-32, opens in a new tab
Reviewed 2026-07-25