State Income Tax Calculator
Estimate your state income tax liability. Rates and structures vary significantly by state—from 0% to over 13%.
Calculate State Income Tax
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How It Works
State Tax Types
- No Income Tax (9 states): Alaska, Florida, Nevada, New Hampshire*, South Dakota, Tennessee*, Texas, Washington, Wyoming
- Flat Tax: Single rate on all income (e.g., Colorado 4.4%, Illinois 4.95%)
- Progressive Tax: Multiple brackets like federal (e.g., California 1-13.3%)
*NH and TN tax interest/dividends only, not wages.
SALT Deduction
State income taxes can be deducted on your federal return if you itemize, but total SALT (state + local taxes) is capped at $10,000.
State Rate Comparison
| State | Top Rate | Type |
|---|---|---|
| California | 13.3% | Progressive |
| New York | 10.9% | Progressive |
| New Jersey | 10.75% | Progressive |
| Illinois | 4.95% | Flat |
| Colorado | 4.4% | Flat |
| Texas | 0% | None |
| Florida | 0% | None |
Frequently Asked Questions
Which state should I use if I moved?
Generally, you file as a resident in the state where you lived and
may need part-year returns if you moved mid-year. Consult a tax professional for multi-state
situations.
What if I work in a different state?
You may owe taxes to the state where you work and typically get a
credit in your home state to avoid double taxation.
Do all states follow federal definitions?
Most states start with federal AGI or taxable income, but many have
their own adjustments, deductions, and credits. This calculator provides simplified
estimates.
What about local income taxes?
Some cities and localities have their own income taxes (e.g., NYC,
Philadelphia, many Ohio cities). These are in addition to state taxes.
Are retirement distributions taxed by states?
It varies. Some states fully tax retirement income, some partially
exempt it, and some don't tax it at all. Research your specific state.
No income tax means no taxes, right?
Not necessarily. States without income tax often have higher
property taxes, sales taxes, or other fees. Consider total tax burden, not just income tax.