How State Income Taxes Compare Across the US
When planning a move, choosing a new job, or establishing a business, state income tax burdens play a major role in your financial bottom line. While federal income taxes are uniform across the country, state income tax rates vary drastically — ranging from a flat 0% in states like Florida and Texas to progressive brackets peaking at 13.3% in California.
This comparison tool does the heavy lifting by mapping your exact taxable income and filing status against all 50 state tax systems. It applies state-specific standard deductions and exemptions to compute your actual effective tax liability, rather than relying on top marginal rates which can be highly misleading.
Understanding the Three State Tax Structures
US states generally fall into three categories when it comes to personal income taxation:
- No Income Tax: 9 states do not tax earned wage income at all. These states include Alaska, Florida, Nevada, South Dakota, Tennessee, Texas, Washington, and Wyoming, along with New Hampshire (which phased out its interest/dividend tax in 2026).
- Flat Tax Rates: 12 states apply a single percentage rate to all taxable income, offering simplicity. Examples include Pennsylvania (3.07%), Indiana (3.05%), and Arizona (2.5%).
- Progressive Tax Brackets: The remaining 29 states and the District of Columbia apply a graduated tax system. Similar to the federal bracket system, your income is partitioned, and higher chunks are taxed at progressively higher rates.
The Trap of Marginal vs. Effective Tax Rates
A common mistake is looking only at a state's top marginal tax bracket (e.g., California's 13.3% or New York's 10.9%) and assuming that is what you will pay. In reality, your effective tax rateis what actually matters.
Because of state-specific standard deductions and progressive brackets, lower portions of your income are taxed at lower rates or not taxed at all. For example, a single filer earning $75,000 in California has a marginal tax rate of 9.3%, but their effective tax rate is actually closer to 3.8% due to deductions and lower tax brackets.
Other Taxes to Keep in Mind
While minimizing state income tax is a great goal, it is critical to look at the complete tax burden of a state. States with no income tax must fund their infrastructure and schools through alternative means. Often, this comes in the form of higher sales taxes (e.g., Tennessee's 7% state sales tax) or steep property taxes (e.g., Texas's effective property tax rate of over 1.6%). Always evaluate the combined cost of living and total state tax burden before making relocation decisions.