Overview of State Income Taxes
State income tax represents an additional payment that millions of Americans must file each year beyond federal income tax. Rates vary from state to state, with some imposing a 0% rate and others taxing specific income types like dividends and interest, as in New Hampshire. Eight states nationwide do not charge personal income tax, reflecting differences based on geography, socio-economics, and prevailing political parties.
Outside federal obligations, most individuals pay income tax in their state of residence, a direct levy on earnings generated there. This applies in 42 states plus Washington, D.C., where individuals file returns for states where income is earned, though only the home state taxes total income.
State Funding and Tax Variations
States receive federal funding for public projects but rely on individual income and sales taxes to meet annual budgets for roads, education, and facilities. Rates differ by factors like average citizen income; high-wealth states such as California impose heavier taxes, while others like Kansas maintain lower ones.
Additional taxes fall under state laws, including gas, alcohol, tobacco, licenses, and tolls. Geography plays a key role, with urban centers like New York City facing higher sales taxes than rural Albany County due to population and income levels. Coastal tourist cities generally exceed inland ones in tax burdens.
States with No Personal Income Tax
- Wyoming
- Washington
- Texas
- South Dakota
- Alaska
- Nevada
- Florida
- Tennessee
Highest State Income Tax Rates
Over recent years, top-taxed states have remained consistent, led by California at 12.3% generally and over 13% for those earning more than $1 million annually. Following are Hawaii at 11%, New Jersey at 10.75%, Oregon at 9.9%, Minnesota at 9.85%, New York at 8.82%, Vermont at 8.75%, Iowa at 8.53%, and Wisconsin at 7.65%.
Notably, New Hampshire levies only on interest and dividends, avoiding wage-based income tax, while Pennsylvania applies a flat 3.07% rate, among the nation's lowest.
