State Income Tax: A Guide for All 50 States

State income tax is one of the most significant factors affecting your take-home pay, yet many Americans overlook it when planning their finances. While the federal income tax gets most of the attention, state-level taxes can add anywhere from zero to over 13 percent on top of what you already owe Uncle Sam. Understanding how your state stacks up can help you make smarter decisions about where to live, work, and invest.

Each state sets its own rules for income taxation, creating a patchwork of systems across the country. Some states charge nothing at all, while others impose steep rates on high earners. In this guide, we break down state income taxes across all 50 states so you can see the full picture and plan accordingly.

States With No Income Tax

Nine states currently impose no individual income tax at all. These zero-tax states are popular destinations for retirees, remote workers, and high earners looking to keep more of their income. However, it is worth noting that these states often make up for lost revenue through higher sales taxes, property taxes, or other fees.

• Alaska: No income tax and no state sales tax, though local sales taxes may apply. The state funds itself largely through oil revenues.
• Florida: No income tax, making it one of the most popular retirement destinations in the country. Revenue comes primarily from sales tax and tourism.
• Nevada: No income tax, with state revenue heavily dependent on gaming and hospitality taxes.
• New Hampshire: No tax on wages or salary. However, the state previously taxed interest and dividends, which was fully phased out as of January 2025.
• South Dakota: No income tax, with a relatively low overall tax burden funded by sales tax revenue.
• Tennessee: No tax on wages or salary. Like New Hampshire, the state fully repealed its tax on interest and dividends (the Hall Tax) in 2021.
• Texas: No income tax, though the state has some of the highest property tax rates in the nation to compensate.
• Washington: No traditional income tax, though voters approved a 7 percent tax on capital gains exceeding $250,000 starting in 2022.
• Wyoming: No income tax, with the state relying on mineral extraction revenues and sales taxes.

If you live in one of these states, your tax planning can focus almost entirely on federal obligations. But keep in mind that total tax burden involves more than just income tax. Texas and New Hampshire, for example, are known for high property taxes that can offset the income tax savings.

Flat Tax vs. Progressive Tax States

Among the 41 states (plus Washington, D.C.) that do levy an income tax, there are two main approaches: flat tax systems and progressive (graduated) tax systems. Understanding the difference is key to estimating your state tax liability.

A flat tax state charges every taxpayer the same rate regardless of income. As of 2026, states with flat income taxes include Arizona, Colorado, Georgia, Idaho, Illinois, Indiana, Iowa, Kentucky, Michigan, Mississippi, North Carolina, Pennsylvania, and Utah, among others. The trend toward flat taxes has accelerated in recent years, with several states converting from graduated systems. Flat tax rates in these states generally range from about 2.5 percent in Arizona to 4.95 percent in Illinois.

Progressive tax states use multiple brackets, taxing higher income at higher rates, much like the federal system. States like California, New York, New Jersey, and Hawaii have the most graduated structures, with top marginal rates that can exceed 10 percent. In a progressive system, only the income within each bracket is taxed at that bracket's rate, so your effective tax rate is typically lower than the top marginal rate.

States With the Highest Income Tax Rates

For high earners, certain states impose significantly heavier income tax burdens. These states generally use progressive rate structures with top brackets that apply to six-figure or seven-figure incomes. If you earn a high salary or have substantial investment income, your state of residence can cost or save you tens of thousands of dollars annually.

• California: Top marginal rate of 13.3 percent on income over $1 million (plus a 1 percent mental health surcharge), making it the highest state income tax rate in the nation.
• Hawaii: Top rate of 11 percent on income exceeding $200,000, with 12 brackets in total.
• New Jersey: Top rate of 10.75 percent on income over $1 million.
• Oregon: Top rate of 9.9 percent, which kicks in at a relatively low threshold of around $125,000 for single filers.
• Minnesota: Top rate of 9.85 percent on income above approximately $193,000 for single filers.
• New York: Top state rate of 10.9 percent, and New York City residents face an additional local income tax of up to 3.876 percent.

These high-tax states often provide more robust public services, including well-funded schools, public transit, and social programs. Whether the trade-off is worthwhile depends on your personal financial situation and priorities.

States With the Lowest Income Tax Rates

On the other end of the spectrum, several states keep income tax rates very low. Beyond the nine no-tax states, these low-rate states offer a middle ground where residents still pay some income tax but at rates that are far below the national average.

• Arizona: Flat rate of 2.5 percent as of 2023, one of the lowest flat rates in the country.
• North Dakota: Top rate of just 2.5 percent with a simplified bracket structure.
• Pennsylvania: Flat rate of 3.07 percent with no local variation on the state rate, though some municipalities levy their own income taxes.
• Indiana: Flat rate of 3.05 percent at the state level, though county-level taxes add to the total.
• North Carolina: Flat rate of 4.5 percent in 2025, with scheduled reductions planned to bring it down further in coming years.
• Colorado: Flat rate of 4.4 percent after a voter-approved reduction.

The SALT Deduction and Its Impact

The State and Local Tax (SALT) deduction allows taxpayers who itemize on their federal return to deduct state and local taxes paid, including income taxes and property taxes. Before 2018, this deduction was unlimited, providing significant relief to residents of high-tax states. The Tax Cuts and Jobs Act of 2017 capped the SALT deduction at $10,000 per year ($5,000 for married filing separately), a change that hit taxpayers in states like California, New York, and New Jersey especially hard.

The SALT cap was extended under subsequent legislation and remains a hotly debated issue in Congress. For many middle- and upper-income households in high-tax states, the cap effectively raised their federal tax burden by limiting how much state tax they can write off. Some states responded by creating pass-through entity tax workarounds that allow business owners to bypass the cap by paying state taxes at the entity level rather than the individual level.

If you live in a high-tax state and itemize deductions, the SALT cap is a critical factor in your overall tax planning. Consider consulting a tax professional to determine whether your state offers a pass-through entity election or other strategies to mitigate the impact.

How to Factor State Taxes Into Your Financial Plan

State income tax should be a key consideration in several major financial decisions. If you are evaluating a job offer in a different state, compare the after-tax income rather than just the gross salary. A $150,000 salary in Texas yields significantly more take-home pay than the same salary in California, even before accounting for cost-of-living differences.

Retirees should also pay close attention to state tax rules on retirement income. Some states fully exempt Social Security benefits, pensions, or retirement account withdrawals from taxation, while others tax them just like ordinary income. States like Illinois, Mississippi, and Pennsylvania exempt most retirement income, making them attractive options for retirees even though they do have an income tax.

Remote workers face unique challenges as well. If you work remotely for a company in a different state, you may owe taxes in your state of residence, your employer's state, or both, depending on each state's rules. A handful of states, including New York and Connecticut, apply a convenience-of-the-employer rule that can tax remote workers even if they never set foot in the state. Always verify your tax obligations if you work across state lines.

References

• Tax Foundation - State Individual Income Tax Rates and Brackets: https://taxfoundation.org/data/all/state/state-income-tax-rates-2025/
• Internal Revenue Service - Topic No. 503, Deductible Taxes (SALT Deduction): https://www.irs.gov/taxtopics/tc503
• Federation of Tax Administrators - State Tax Rates and Structure: https://www.taxadmin.org/state-tax-agencies