United States Income Tax Calculator

Estimate income tax in United States across a tax-free allowance and two rate bands, with effective and marginal rates.

About United States Income Tax Calculator

Progressive systems tax each slice of income at its own rate rather than applying one rate to the whole amount. That is why the effective rate is always below the marginal rate — only the last slice is taxed at the top rate you reach. Indicative bands for United States. Confusing the marginal rate with the effective rate leads people to believe a pay rise leaves them worse off, which progressive banding never does.

Formula

United States Income Tax

Tax = (band 1 income × basic rate) + (income above the threshold × higher rate)

allowance: Income taxed at zero per cent
threshold: Income level where the higher rate begins

Worked example

With the default values below, United States Income Tax Calculator returns Total Income Tax of $10,802.00. Change any input above and every figure here is recalculated in your browser.

Inputs used

Annual taxable incomeminimum 0 USD: 63,000 USD
Tax-free allowanceminimum 0 USD: 13,900 USD
Basic rateaccepts 0–100 %: 22 %
Income where the higher rate startsminimum 0 USD: 72,400 USD
Higher rateaccepts 0–100 %: 37 %

Results

Total Income Tax: $10,802.00
Income After Tax: $52,198.00
Effective Tax Rate: 17.15%
Marginal Rate on the Next Unit Earned: 22.0%
Monthly Income After Tax: $4,349.83

Step by step

1Values used
2United States Income Tax
3Total Income Tax= 10,802.00
4Income After Tax= 52,198.00
5Effective Tax Rate= 17.15
6Marginal Rate on the Next Unit Earned= 22.0
7Monthly Income After Tax= 4,349.83

Assumptions and limits

The result is derived only from the 5 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation or fees or charges into account.
Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is United States Income Tax calculated?

Tax = (band 1 income × basic rate) + (income above the threshold × higher rate) Progressive systems tax each slice of income at its own rate rather than applying one rate to the whole amount. That is why the effective rate is always below the marginal rate — only the last slice is taxed at the top rate you reach.

Why does United States Income Tax matter?

Indicative bands for United States. Confusing the marginal rate with the effective rate leads people to believe a pay rise leaves them worse off, which progressive banding never does.

What values do I need to enter?

This calculator takes 5 inputs: Annual taxable income, Tax-free allowance, Basic rate, Income where the higher rate starts, Higher rate. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.

United States specifics

Currency: $ USDUS Dollar
Region: North America
Country code: US
Amounts look like: $1,234,567.89
Dates look like: Mar 9, 2026
Units: imperialWeek starts Sunday

In United States, imperial units are in everyday use.

Results on this page are expressed in USD (US Dollar). Figures are estimates for general planning — confirm current rates and thresholds with the relevant United States authority before relying on them.

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