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State Income Tax Calculator

Calculate state income tax for all 50 states and D.C. with 2026 brackets, standard deductions, effective and marginal rates, and net pay by state.

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Select a state and enter income to calculate.

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What This Calculator Does

This state income tax calculator computes income tax liability for all 50 states and Washington D.C. using 2026 projected tax brackets, flat rates, and standard deductions. It covers nine no-income-tax states, 13 flat-rate states, and 29 progressive (graduated bracket) states. The tool shows effective and marginal tax rates, bracket-by-bracket breakdown, standard deduction applied, and net income after state tax for both single and married filing jointly statuses.

The Formula

State Tax = Sum of (Taxable Income in Each Bracket x Bracket Rate) | Taxable Income = Gross Income - Standard Deduction

For progressive-rate states, income is taxed in layers. The first dollars of taxable income are taxed at the lowest rate, and each additional portion is taxed at progressively higher rates. Only the income within each bracket is taxed at that bracket rate. For flat-rate states, all taxable income is taxed at one rate. Nine states (Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, Wyoming) impose no state income tax on wages and salaries.

Step-by-Step Example

1

Select your state

Choose from all 50 states and D.C. States with no income tax will show $0 liability.

2

Enter annual gross income

Example: $75,000 in California as a single filer.

3

Select filing status

Single or Married Filing Jointly. Married status roughly doubles bracket thresholds and deductions.

4

Review results

California: $75,000 gross, $5,540 standard deduction, $69,460 taxable, $3,030 state tax, 4.04% effective rate, 9.3% marginal rate.

Real-World Use Cases

Relocation Planning

Compare state tax burdens when considering a move. A $100,000 salary faces $0 state tax in Texas but over $6,000 in California.

Remote Work Tax Analysis

Understand your state tax liability when working remotely, especially if your employer is in a different state.

Retirement Destination

Compare state tax treatment of retirement income to optimize where to retire. Some states exempt Social Security and pension income.

Common Mistakes to Avoid

  • Confusing marginal rate with effective rate. Your marginal rate is the rate on the last dollar of income. Your effective rate is total tax divided by total income and is always lower in progressive systems.

  • Forgetting local income taxes. Several cities and counties impose their own income taxes (New York City, Yonkers, many Ohio cities, some Maryland counties, and others). This calculator covers state-level tax only.

  • Assuming no-income-tax states have no taxes. States without income tax often have higher property taxes, sales taxes, or other fees. Consider total tax burden, not just income tax.

  • Not adjusting for state-specific deductions and credits. Many states offer deductions and credits beyond the standard deduction that can significantly reduce liability.

Frequently Asked Questions

Accuracy and Disclaimer

State income tax calculations are based on 2026 projected brackets, rates, and standard deductions. Actual liability depends on itemized deductions, state-specific credits, local taxes, and individual circumstances. This calculator does not include city or county income taxes. Consult a licensed tax professional or your state department of revenue for accurate tax preparation.