US Federal Income Tax Calculator
Estimate US federal income tax with marginal brackets (2026)
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US Federal Income Tax Calculator helps you estimate US federal income tax with marginal brackets (2026) without a spreadsheet. Type Annual Income ($) and Standard Deduction ($) into US Federal Income Tax; each keystroke re-runs the math. The answer from US Federal Income Tax arrives with its working attached. US Federal Income Tax shines when speed matters. Nothing typed into US Federal Income Tax leaves your device or the tab. US Federal Income Tax is part of the Finance collection on CalcProMaster, alongside free online us federal income tax calculator, free calculators and more. US Federal Income Tax goes from question to answer fast. Start with US Federal Income Tax; the first number takes seconds.
What the defaults give
$75,000 single, $16,100 standard deduction → taxable income $58,900 and federal tax $7,670.
That is an effective rate of 10.2%. The marginal rate on the last dollar is 22%.
How the brackets work
Tax = Σ (amount in each bracket × that bracket's rate)
Effective rate = tax ÷ gross income
The 2026 single brackets used here: 10% to $12,400, 12% to $50,400, 22% to $105,700, 24% to $201,775, 32% to $256,225, 35% to $640,600 and 37% above. Married filing jointly doubles most of the thresholds; head of household sits between the two.
Only the money inside a bracket pays that bracket's rate. Crossing into 22% does not raise the tax on the first $50,400 — it only applies to the dollars above it. This is why the effective rate is always lower than the marginal rate.
Worked examples
$75,000 single, $16,100 deduction → 1,240 + 4,560 + 1,870 = $7,670 (10.2%)
$37,500 single → 1,240 + 1,080 = $2,320 (6.2%)
$150,000 single → $24,734 (16.5%)
$75,000 with an $8,050 deduction → $9,441
$75,000 with a $32,200 deduction → $4,888
The deduction rows show the lever clearly. Halving the standard deduction adds $1,771 of tax; doubling it removes $2,782, because those dollars come off the top of the 22% bracket rather than the bottom.
Reading the result correctly
"Take-home" here means gross minus federal income tax only. FICA — Social Security at 6.2% up to the wage base and Medicare at 1.45% — is not included, and neither is state tax, which ranges from nothing in nine states to over 13% in California. For a $75,000 salary, FICA alone is roughly $5,700.
The standard deduction used is the single filer's. Married couples, dependents, itemisers and anyone with self-employment income, capital gains or credits should enter their own deduction and expect a different answer. Credits reduce tax directly rather than reducing income, so they are not modelled at all.
One more thing the figure is not: a prediction of your refund. Withholding is set per pay period from a W-4, so an accurate annual tax can still arrive with a bill or a refund depending on what was taken out along the way. Compare this number with box 2 of a W-2 and the gap is the direction of the correction.
Frequently Asked Questions
Why is the effective rate lower than 22%?
Only income above $50,400 is taxed at 22%. The lower brackets still apply to the first dollars, which pulls the average down to 10.2% at $75,000.
Is FICA included?
No. The tax shown is federal income tax only. Social Security and Medicare add about 7.65% for most employees, and state tax is separate again.
What happens if I increase the deduction?
Tax falls by the marginal rate on the extra deduction. Doubling the $16,100 to $32,200 on a $75,000 salary cuts tax from $7,670 to $4,888.
Do the married brackets differ?
Yes. Married filing jointly roughly doubles the thresholds, so the same income usually lands in a lower bracket. Select the filing status to see it.
Are credits like the child tax credit included?
No. Credits reduce tax directly, while this calculator only applies brackets to taxable income. Subtract any credits you qualify for from the result.
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