State income taxes by state in 2026 vary widely, making location an important factor in personal tax planning. While some states impose no broad individual income tax, others use flat rates or multiple progressive tax brackets. State taxes may also influence federal deductions for taxpayers who itemize, particularly through the SALT Tax Deduction. Understanding current rates, brackets, deductions, and residency rules can help taxpayers estimate what they may owe.
How State Income Taxes Work in 2026
State individual income taxes are imposed separately from federal income taxes. According to 2026 state tax data, 42 states levy an individual income tax. Forty-one tax wage and salary income, while Washington's individual income tax applies specifically to certain capital gains.
The systems generally fall into three categories:
No broad individual income tax
Flat or single-rate income tax
Graduated income tax with multiple brackets
A state's headline tax rate alone does not determine a person's final tax liability. Standard deductions, exemptions, credits, filing status, taxable income, and local taxes can substantially affect the final amount.
States With No Individual Income Tax
Eight states impose no broad individual income tax in 2026:
Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, and Wyoming.
New Hampshire became part of this group after eliminating its tax on interest and dividend income beginning in 2025.
However, "no state income tax" should not be confused with "no state taxes." Residents may still pay sales, property, excise, business, and local taxes.
Flat Income Tax States in 2026
Fifteen states use a single-rate structure for individual income taxes in 2026. These include Arizona, Colorado, Georgia, Idaho, Illinois, Indiana, Iowa, Kentucky, Louisiana, Michigan, Mississippi, North Carolina, Ohio, Pennsylvania, and Utah.
Rates differ considerably. Arizona applies a 2.5% flat rate, Pennsylvania uses 3.07%, and North Carolina's 2026 rate is 3.99%. Georgia's rate is 5.19%.
Flat-rate systems may appear simpler, but deductions, credits, exemptions, and definitions of taxable income can still differ by state.
States With Graduated Tax Brackets
Twenty-six states and the District of Columbia use graduated individual income tax structures. Under these systems, taxpayers move through tax brackets as taxable income increases.
California has one of the highest headline marginal rates, reaching 13.3%, while Hawaii has 12 separate individual income tax brackets. North Dakota's top marginal rate is 2.5%.
Importantly, reaching a higher bracket generally does not mean all income is taxed at the highest rate. The higher marginal rate applies to income falling within that particular bracket.
Major State Income Tax Changes for 2026
Several states introduced notable rate changes in 2026.
Indiana lowered its flat rate from 3% to 2.95%, while Kentucky reduced its rate from 4% to 3.5%. Mississippi's rate declined from 4.4% to 4%, and North Carolina completed a scheduled reduction to 3.99%.
Nebraska reduced its top marginal rate from 5.2% to 4.55%. Oklahoma consolidated its six brackets into three and lowered its top marginal rate to 4.5%. Ohio moved to a 2.75% rate for nonbusiness income above $26,050.
These changes demonstrate why taxpayers should check 2026 figures instead of relying on previous-year tax tables.
How the SALT Tax Deduction Relates to State Taxes
The SALT Tax Deduction can connect state tax obligations with a taxpayer's federal return. Eligible taxpayers who itemize federal deductions may generally deduct qualifying state and local property taxes plus either state and local income taxes or general sales taxes, subject to federal rules and limitations.
This means residents of states with substantial income or property taxes may want to consider eligible SALT expenses when evaluating whether itemizing deductions makes sense.
Residency and Multistate Income
Taxes become more complicated when taxpayers live in one state and earn income in another. Depending on state law, they may need resident and nonresident returns.
Some states maintain reciprocal agreements that simplify taxation for qualifying interstate workers. Remote employees should also review residency and income-sourcing requirements because the location of an employer does not by itself determine every state tax obligation.
Conclusion
State income taxes by state in 2026 range from no broad individual income tax to complex systems containing numerous tax brackets. Eight states impose no broad individual income tax, while other states use either flat or graduated structures.
Understanding tax brackets, marginal rates, residency rules, deductions, and the SALT Tax Deduction can help taxpayers make better-informed financial decisions. Because state tax laws can change and individual circumstances differ, taxpayers should verify applicable 2026 requirements with their state revenue department or a qualified tax professional before filing.