State Income Tax Calculator
Find out how much you owe in state taxes. Select your state to see estimated income tax based on the latest 2025 brackets.
State Income Tax
State Income Tax Rates
State income taxes vary significantly across the United States. Some states use a progressive tax structure similar to the federal government, while others use a flat rate, and some have no state income tax at all. Understanding your state's tax system is essential for accurate financial planning.
States with No Income Tax
As of 2025, the following eight states do not levy a state income tax on wages: Alaska, Florida, Nevada, South Dakota, Tennessee, Texas, Washington, and Wyoming. New Hampshire only taxes interest and dividends income, not wages.
Flat vs. Progressive Tax Systems
- Flat Tax: Everyone pays the same percentage of their income, regardless of how much they earn. States like Pennsylvania (3.07%), Illinois (4.95%), and Michigan (4.25%) use this model.
- Progressive Tax: Higher earners pay a higher percentage of their income. States like California (1%–13.3%), New York (4%–10.9%), and New Jersey (1.4%–10.75%) use graduated brackets.
Highest & Lowest State Income Tax Rates (2025)
| State | Top Rate | Type |
|---|---|---|
| California | 13.30% | Progressive |
| Hawaii | 11.00% | Progressive |
| New Jersey | 10.75% | Progressive |
| New York | 10.90% | Progressive |
| Pennsylvania | 3.07% | Flat |
| Arizona | 2.50% | Flat |
Frequently Asked Questions
Do all states have income tax?
No. Eight states — Alaska, Florida, Nevada, South Dakota, Tennessee, Texas, Washington, and Wyoming — have no state income tax on wages. New Hampshire only taxes interest and dividends.
What is the difference between a flat tax and a progressive tax?
A flat tax charges the same percentage rate regardless of income (e.g., Pennsylvania at 3.07%). A progressive tax charges higher rates on higher income brackets (e.g., California ranges from 1% to 13.3%).
Can I deduct state taxes on my federal return?
Yes, if you itemize deductions. The State and Local Tax (SALT) deduction allows you to deduct up to $10,000 ($5,000 if married filing separately) in state and local taxes on your federal return.