2026 Tax Bracket Calculator

What is a tax bracket?

A tax bracket is a range of taxable income taxed at a particular rate. The federal system is progressive: your income is divided into slices, and each slice is taxed at the rate for its bracket. Reaching a higher bracket does not make all your income subject to that higher rate.

A tax bracket calculator shows your marginal rate, which is the rate on the last portion of your taxable income. It can also estimate tax across all the brackets and show your effective rate: the total estimated tax divided by taxable income. Those rates are different, so a tax rate calculator is most useful when it shows both.

Why your federal tax bracket matters

Your marginal rate can help you estimate how additional taxable income may affect your federal income tax. That can inform decisions about taking a bonus, accepting extra work, timing business income or comparing compensation. The effective rate gives a broader view of the estimated tax on your taxable income.

For budgeting, compare the estimated tax with your withholding or estimated payments. For business planning, consider how a change in taxable profit could affect your personal tax bill. The calculator estimates federal income tax using bracket rates; it does not, by itself, account for credits, withholding, state taxes or payroll taxes. Ask a qualified tax professional to confirm how your full tax situation affects the result.

How to use this tax bracket calculator

1. Select your filing status. The applicable brackets depend on whether you file as single, married filing jointly or another status.
2. Enter your taxable income, not simply your salary, business revenue or total household income. Taxable income is the amount used to apply the brackets after relevant adjustments and deductions.
3. Review the marginal rate, total estimated tax and effective rate. Use the income rows to see how the estimate is spread across the brackets.
4. If you are starting with wages rather than taxable income, account for applicable deductions first. For 2026, the standard deduction is $16,100 for single filers and $32,200 for joint filers. Your own deductions and filing details may differ.

Tax bracket calculator example

How to read your tax bracket results

Your marginal rate is the rate on the last slice of taxable income. It can help you estimate the federal tax effect of additional taxable income, but it is not the rate applied to every dollar you earn.

Total tax is the calculator's estimate from applying the bracket rates to each slice of taxable income. The effective rate expresses that estimate as a share of taxable income. In the example, the marginal rate is 22%, while the effective rate is 14.9%. The difference reflects the lower rates applied to the earlier slices.

How to improve your tax estimate and plan ahead

1. 01

   Start with the right income figure

   Use taxable income rather than gross pay or business sales. Review your pay statement, business records and eligible deductions so the amount you enter matches the figure used for federal brackets.

2. 02

   Check your withholding after income changes

   After a bonus, job change or shift in business income, compare your expected tax with what is being withheld or paid. Consider updating withholding or estimated payments if the numbers no longer match your plan.

3. 03

   Review eligible deductions and retirement contributions

   If you are considering a pre-tax workplace retirement contribution, check how it may affect taxable income and take-home pay. A contribution can change the amount entered in this calculator, but the calculator does not determine your eligibility or the best contribution for you.

4. 04

   Compare the result with your full tax picture

   Credits, other taxes and personal circumstances can change what you ultimately owe. Gather your relevant records and ask a qualified tax professional to confirm your filing assumptions and estimate.

Common tax bracket calculator mistakes

• Entering gross income instead of taxable income

  Salary, business revenue and taxable income are not interchangeable. Entering gross income can make the bracket estimate misleading.

• Treating the marginal rate as your rate on all income

  The marginal rate applies to the top slice in the calculation. Earlier slices are taxed at their own bracket rates.

• Using the wrong filing status

  Your filing status affects which brackets apply. Confirm the status you expect to use before relying on the result.

• Reading the estimate as your final tax bill

  The bracket calculation is not a complete return. Credits, withholding, state or payroll taxes and other details may affect your final amount.

The tax bracket formula

Key terms

Taxable income

Income used to calculate federal income tax after applicable adjustments and deductions.

Tax bracket

A range of taxable income assigned a particular tax rate.

Marginal tax rate

The rate applied to the last slice of taxable income in the calculation.

Effective tax rate

Estimated total tax divided by taxable income, expressed as a percentage.