Comparing US State Income Tax Structures (2025/2026 Tax Year)
State personal income taxes in the United States vary dramatically depending on where you live and work. State taxation policies fall into three distinct structural categories: Zero State Income Tax, Flat Tax, and Progressive Tax Brackets.
1. The 9 States With No State Income Tax on Earned Wages
Nine US states levy 0% personal income tax on earned wages: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. Residents in these states pay zero state-level income tax on their paychecks, leaving only federal income tax and FICA payroll taxes. (Note: Washington levies a capital gains tax on certain investments, and New Hampshire phased out its tax on interest/dividends).
2. The 12 Flat Tax Rate States
Twelve US states assess a single flat tax percentage on all taxable income regardless of how much you earn: Arizona (2.5%), Colorado (4.4%), Georgia (5.49%), Idaho (5.69%), Indiana (3.05%), Iowa (3.8%), Kentucky (4.0%), Michigan (4.25%), North Carolina (4.5%), North Dakota (2.5%), Pennsylvania (3.07%), and Utah (4.55%). Flat tax systems simplify tax preparation and ensure predictable tax withholding per paycheck.
3. Progressive Tax Bracket States
The remaining 29 states plus Washington, D.C. utilize graduated progressive income tax brackets, where higher income tiers are taxed at higher marginal rates. Progressive states with notable high top marginal brackets include:
- California: Top rate of 12.3% plus a 1.0% Mental Health Services surtax on taxable income exceeding $1,000,000 (13.3% top effective rate).
- New York: Top rate of 10.9% for high-income earners.
- New Jersey: Top bracket of 10.75%.
- District of Columbia (DC): Top rate of 10.75%.
State Resiliency & Remote Work Tax Filing
If you work remotely across state lines or relocate during the tax year, you may be required to file non-resident or part-year resident state tax returns. Use our dedicated state income tax and paycheck calculators to estimate your net take-home salary across all 50 US states.
Frequently Asked Questions: 50-State Tax Rates & Comparison
Which US states have no personal state income tax in 2025/2026?
Nine US states levy 0% personal income tax on earned wages: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. Residents of these states pay zero state income tax on their paychecks, paying only federal income tax and FICA (Social Security & Medicare). Note that Washington levies a 7% tax on high-value capital gains over $262,000, and New Hampshire has completely phased out its tax on interest and dividends.
Which US states have a single flat income tax rate?
Thirteen US states currently utilize a single flat tax rate on all taxable individual income: Arizona (2.50%), Colorado (4.40%), Georgia (5.39%), Idaho (5.695%), Illinois (4.95%), Indiana (3.05%), Iowa (3.80%), Kentucky (4.00%), Michigan (4.25%), Mississippi (4.70%), North Carolina (4.50%), Pennsylvania (3.07%), and Utah (4.65%). Flat tax systems apply the exact same percentage to all income exceeding allowable deductions.
Which state has the highest individual income tax rate in the United States?
California has the highest top marginal individual income tax rate in the country at 13.30%. This consists of a 12.30% top progressive income bracket plus a mandatory 1.00% Mental Health Services Tax surcharge on taxable income exceeding $1,000,000. Hawaii follows closely with an 11.00% top rate, New York at 10.90%, and New Jersey at 10.75%.
How do state standard deductions compare to the IRS federal standard deduction?
For the 2025/2026 tax year, the IRS federal standard deduction is $15,000 for single filers and $30,000 for married couples filing jointly. State standard deductions vary widely: some states (like California at $5,540 single / $11,080 married or New York at $8,000 single / $16,050 married) set independent amounts; some mirror federal amounts; while other states (like Pennsylvania and Ohio) offer zero standard deduction, taxing gross taxable compensation directly.
Do states tax remote workers who live in one state but work for an employer in another?
As a general rule, state income tax is owed to the state where you physically perform the work. However, five states (New York, Nebraska, Pennsylvania, Delaware, and New Jersey) enforce a 'Convenience of the Employer' rule, where wages can be taxed by the employer's home state unless your telecommuting is mandated by employer necessity. Most states provide a reciprocal credit to prevent double taxation on the same income.
How do local city and county income taxes affect my total tax burden?
Several states permit cities and counties to levy local income taxes. For example, New York City assesses a resident income tax between 3.078% and 3.876%; Philadelphia levies a 3.75% resident wage tax; Maryland counties assess local piggyback taxes between 2.25% and 3.20%; and Ohio municipalities utilize local income taxes through RITA. These local levies are added directly to your state and federal tax liabilities.
Which states do not tax retirement pensions and Social Security benefits?
All 9 states with no personal income tax (AK, FL, NV, NH, SD, TN, TX, WA, WY) charge 0% tax on retirement distributions and Social Security. Furthermore, the vast majority of other states (over 35 states, including California, New York, and Pennsylvania) completely exempt Social Security benefits from state taxation. Pennsylvania, Mississippi, and Illinois also exempt virtually all qualified pension and 401(k) distributions.
What is the difference between residence-based and source-based state income taxation?
Your state of legal domicile (residence) has the legal authority to tax 100% of your worldwide income from all sources. Non-resident states have source-based taxation authority to tax only the income earned physically within their geographical borders. Your resident state typically grants a resident tax credit for taxes paid to non-resident source states to mitigate double taxation.