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Income Tax Calculator

Estimate your 2024 federal and state income tax, effective rate, and exact take-home pay.

Updated June 2026 · Editorial standards

Your details

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$
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Leave at $0 to use the standard deduction automatically.

Net income / yr
$69,057
Effective tax rate
18.8%
Federal tax
$9,441
Total tax· 18.8% effective
$15,944

On $85,000 gross income your marginal federal rate is 22%, but your effective rate is only 18.8% — you keep $69,057/year.Your effective rate is lower than your marginal bracket because lower income is taxed at lower rates. Pre-tax deductions reduce your AGI by $5,000, saving you taxes upfront.

Where your income goes

Tax summary

Adjusted gross income$80,000
Taxable income$65,400
Federal tax$9,441
State tax$0
FICA (SS + Medicare)$6,503
Net income / month$5,755

Tax breakdown

ItemAmountRate
Gross income$85,000—
Pre-tax deductions($5,000)—
Adjusted gross income$80,000—
Deduction($14,600)—
Taxable income$65,400—
Federal income tax$9,44122.00%
State income tax$00.00%
FICA (SS + Medicare)$6,5037.65%
Net income$69,057—
By the KalkWise Editorial Team Reviewed for accuracy Updated June 2026

What is the income tax calculator?

In short

Your total US income tax includes federal income tax (calculated using progressive brackets), state income tax (varies by state), and FICA taxes (Social Security at 6.2% on wages up to $168,600, plus Medicare at 1.45%). Your effective tax rate — total taxes divided by gross income — is typically much lower than your marginal bracket.

This income tax calculator estimates your 2024 federal income tax, state income tax, FICA taxes, effective rate, and take-home pay based on your gross income, filing status, pre-tax deductions, and state.

How to use this calculator

  1. 1Enter your annual gross income.
  2. 2Select your filing status (single, married filing jointly, or head of household).
  3. 3Choose your state for state income tax.
  4. 4Enter pre-tax deductions (401k contributions, HSA contributions, etc.).
  5. 5Optionally enter itemized deductions if they exceed the standard deduction.
  6. 6Review your tax breakdown and effective rate.

The formula

taxable income=gross−deductions
federal tax=bracket taxtaxable income×taxable income
effective rate=total taxgross income
Federal tax applies progressive bracket rates to taxable income (AGI minus deductions). State tax uses a flat or graduated rate on the same base. FICA is flat on gross wages. Add all three for total tax.
AGI
— Adjusted Gross Income (gross minus pre-tax deductions)
TI
— Taxable Income (AGI minus standard/itemized deductions)
FICA
— Social Security (6.2%) + Medicare (1.45%)

Worked example

The scenario

$85,000 gross income, single filer in California, $5,000 in 401k contributions.

gives

The result

Federal tax: ~$12,400 (22% bracket, ~15.7% effective). State tax: ~$5,100. FICA: ~$6,500. Total: ~$24,000. Take-home: ~$61,000 (~72%).

Common use cases

  • Estimating take-home pay before accepting a job offer
  • Planning how much to withhold on your W-4
  • Comparing the after-tax benefit of increasing 401k contributions
  • Understanding your true marginal vs effective tax rate

Limitations & assumptions

  • Estimates use 2024 tax brackets and may not reflect all deductions, credits, or phase-outs.
  • Does not include Alternative Minimum Tax (AMT), Net Investment Income Tax (NIIT), or self-employment tax.
  • State tax uses simplified flat rates — graduated state brackets are not modeled for all states.

Frequently asked questions

Your marginal tax rate is the rate on your last dollar of income — the highest bracket you fall into. Your effective rate is your total federal tax divided by gross income. Someone in the 22% bracket typically has an effective rate of 12–16% because lower income is taxed at lower rates.

Disclaimer: KalkWise calculators are provided for general informational and educational purposes only and do not constitute financial, investment, tax, or legal advice. Results are estimates based on the figures you enter and the assumptions described above. Actual outcomes will vary. Consult a qualified professional before making financial decisions.