Free US Income Tax Calculator

Calculate your federal and state income tax, Social Security, Medicare, Child Tax Credit, and net take-home pay. Covers all 50 states. Completely free.

100% free — no signup

1Select Country

🇺🇸United States2025 rates

State(affects tax calculation)

2Taxpayer Type

Non-resident— living abroad, taxed on local-source income only

3Annual Gross Income

Enter your gross income before any tax or deductions

Annual Bonus / Supplemental Income ($)

RSU vest, annual bonus, or one-time lump-sum — taxed on top of your base salary at your marginal rate

US employers withhold at 22% flat (37% above $1M supplemental). Your actual marginal rate shown in results may differ — any gap is settled when you file.

4Personal DetailsAffects your result

Filing Status

Determines your standard deduction and tax brackets. Married Filing Jointly gives double the deduction and wider brackets.

Dependent children under 17

Each qualifying child gives a $2,000 Child Tax Credit (phases out above $200k for single, $400k for MFJ).

401(k) / IRA annual contribution ($)

Pre-tax contributions reduce your taxable income. 2025 limits: $23,500 (401k) or $7,000 (IRA). Enter total pre-tax amount.

United States — Key Tax Facts

→10%–37% federal tax in 7 progressive brackets
→Standard deduction: $14,600 single / $29,200 married filing jointly
→Social Security 6.2% + Medicare 1.45% on wages

How US Income Tax Works

The United States uses a federal progressive income tax with seven marginal rates from 10% to 37%. Your rate depends on taxable income after the standard deduction ($14,600 single / $29,200 married filing jointly) and any credits. State income tax is separate and ranges from 0% to 13.3%.

Rate	Single filer	Married filing jointly
10%	$0–$11,600	$0–$23,200
12%	$11,601–$47,150	$23,201–$94,300
22%	$47,151–$100,525	$94,301–$201,050
24%	$100,526–$191,950	$201,051–$383,900
32%	$191,951–$243,725	$383,901–$487,450
35%	$243,726–$609,350	$487,451–$731,200
37%	Over $609,350	Over $731,200

→Social Security: 6.2% on wages up to $168,600 — employees pay half, employers pay the other half

→Medicare: 1.45% on all wages plus 0.9% surtax above $200,000

→Child Tax Credit: $2,000 per qualifying child under 17, phases out above $200k ($400k MFJ)

→401(k) contributions (up to $23,000/year) reduce taxable income dollar-for-dollar

→Self-employed pay 15.3% SE tax but deduct half before calculating income tax

→9 states have no income tax: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, Wyoming