State Income Tax Calculator

This state income tax calculator estimates how much income tax you owe your state on a given income. Pick a state, enter your income and any state deductions or exemptions, and it applies that state’s graduated brackets or flat rate to show your state tax, effective rate, top marginal rate and a bracket-by-bracket breakdown.

It is useful when you are comparing job offers in different states, planning a move, checking a paycheck’s state withholding, or wondering how much a no-income-tax state like Texas or Florida would save you. Nine states — Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington and Wyoming — do not tax wages.

Rates use each state’s tax year 2026 schedule where it has been published or enacted (for example Maine, Minnesota, Nebraska, New York and South Carolina’s new two-bracket system) and the latest official 2025 schedule otherwise — California, Oregon, Wisconsin and other states that index brackets had not all published 2026 figures, and Georgia’s 2026 rate may be slightly below the 5.19% used. Married couples use the state’s own joint schedule where it has one (New Jersey, New York, Maryland, Minnesota, Wisconsin and others), a single schedule where the state uses one for everyone, and doubled single thresholds elsewhere. Local city and county income taxes, credits, New York’s high-income benefit recapture and state-specific deduction rules are not modelled, so treat the result as an estimate.

Taxable income is your income minus the state deductions and exemptions you enter. Graduated-rate states tax each slice of income at its own rate, so only the dollars above a threshold are taxed at the higher rate. Flat-rate states apply one rate to all taxable income; some, like Mississippi and Ohio, exempt the first slice entirely.

The effective rate is total state tax divided by gross income, and the marginal rate is the rate on your next dollar. For married couples filing jointly the calculator uses the state’s published joint schedule where it is not simply double the single one (for example Maryland, Minnesota, New Jersey, New Mexico, New York, North Dakota, Vermont and Wisconsin); states such as DC, Delaware, Massachusetts, Ohio, Rhode Island, South Carolina, Virginia and West Virginia use one schedule for everyone; the remaining graduated states double the single thresholds. California’s 1% surtax over $1 million and Massachusetts’ 4% surtax keep the same threshold for all filers, while Maine’s new 2% surcharge starts at $1 million single and $1.5 million joint. City and county income taxes, credits and special deductions are not included.