$IncomeTaxByState.com
This site is not affiliated with the IRS or any state revenue department. Information is for general educational purposes only and is not tax, legal, or financial advice. State tax brackets and rules change annually. Always confirm current figures with your state's Department of Revenue or a licensed CPA before filing. Sources: state revenue departments, Tax Foundation, IRS Publication 17. Last reviewed April 2026.
Income Tax by State›Calculator

State Income Tax Calculator 2026

Select your state and income to see your estimated effective state income tax rate and annual tax due. Uses 2026 rates with standard deduction.

Quick Effective Rate Calculator

Effective Rate

4.0%

State Tax Due

$3,000

After State Tax

$72,000

Approximate estimate for single filers using standard deduction. Does not include federal tax or local income tax. Learn about marginal vs effective rate.

Per-State Calculators With Real Brackets

The calculator above uses approximate effective rates. For a full bracket-by-bracket calculation for these states, use the per-state pages:

California →New York →Illinois →Pennsylvania →Ohio →New Jersey →Massachusetts →Georgia →

Understanding Effective vs Marginal Rate

The effective rate is the percentage of your total income paid in tax. The marginal rate is the rate on your last dollar. Most people pay much less than the headline top rate.

Full explainer: Marginal vs Effective Rate →