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State Income Tax Calculator

Estimate state income tax and income after state tax from taxable earnings, including states that levy none.

About State Income Tax Calculator

State Income Tax Calculator — estimates state income tax and income after tax from taxable earnings. This single-rate state income-tax estimator multiplies your taxable income by the state rate and shows the remainder as income after state tax. Federal tax is not included - that belongs to the federal calculator - so the after-tax figure here is before federal income tax and FICA. For states with no income tax on earnings, the verified rate is zero and the estimate is zero, with the state's own source cited rather than an unsupported claim. The six verified flat-rate states are Illinois (4.95%), Pennsylvania (3.07%), Arizona (2.5%), Michigan (4.25%), Tennessee (0%), and New Hampshire (0%). All other states use graduated schedules or lack a confirmed rate and require your input.

Formulas

Income state tax

Income state tax = taxable income × state rate

Income after tax

Income after tax = taxable income - income state tax

Income effective rate

Income effective rate = income state tax / taxable income

Worked example

With the default values below, State Income Tax Calculator returns Estimated State Tax of $0.00. Change any input above and every figure here is recalculated in your browser.

Inputs used

Stateone of Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming
Tennessee
Your state tax rateaccepts 0–60
Taxable incomeminimum 0
80,000

Results

Estimated State Tax
$0.00
Income After State Tax
$80,000.00
Effective Rate
0.00%
Rate Applied
0.00%
State rate used
0% (verified)
Tax year
2026
Source
https://revenue.support.tn.gov/hc/en-us/articles/360057352952-HIT-1-Tennessee-Income-Tax-on-Interest-and-Dividend-Income

Step by step

  1. 1Values used
  2. 2Income state tax
  3. 3Income after tax
  4. 4Income effective rate
  5. 5Estimated State Tax= 0.00
  6. 6Income After State Tax= 80,000.00
  7. 7Effective Rate= 0.00
  8. 8Rate Applied= 0.00
  9. 9State rate used= 0% (verified)
  10. 10Tax year= 2026

Assumptions and limits

  • The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • Planning estimate. A flat rate cannot represent a graduated schedule, and local income taxes are excluded.
  • This is an estimate for general information and not professional financial, tax or legal advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Planning estimate. A flat rate cannot represent a graduated schedule, and local income taxes are excluded.

Frequently Asked Questions

Which states have no income tax on earnings?

A handful levy none on wages. Tennessee is the one verified here: its Department of Revenue states there is no state income tax on earned income, and the Hall tax on interest and dividends was repealed for tax years beginning on or after 1 January 2021. Others are left unverified until an official statement for the current year is recorded, because the position does change - Washington enacted a tax on very high incomes in 2026.

Does this include federal tax?

No. This is the state component only. Use the federal income tax calculator for the federal side, and the paycheck calculator if you want both plus FICA in one figure.

How does this differ from the State Paycheck Calculator?

The State Income Tax Calculator estimates only the state income tax on your taxable income. The State Paycheck Calculator goes further: it annualizes your gross pay by pay period, then subtracts FICA (7.65%), a flat federal estimate (12% above the standard deduction), and state tax to show take-home pay per paycheck.

What counts as taxable income for state purposes?

Most states start with federal taxable income or federal AGI and then apply their own additions and subtractions. Common differences: some states tax Social Security benefits that are federally exempt, some exempt pension income, and some allow deductions the federal code does not. This calculator uses your entered taxable income as the base - adjust it for your state's specific rules before entering.

Why does it say the rate is not verified for my state?

Because the figure the old per-state page used could not be matched to a current publication from that state's revenue department, or the state uses a graduated schedule that a single rate cannot represent. Rather than show a number with no provenance, the calculator asks you for the rate from your own notice or return and then uses exactly that.

How do I use my own rate?

Type it into the state rate field. Anything you enter wins over the built-in rate, and the result panel then labels the rate as yours rather than verified. Clearing the field goes back to the verified rate. A rate of 0 counts as blank, so to model a state with no income tax select one that has a verified 0%.

Which tax year does the state rate belong to?

The result panel prints it. Each verified rate is stored with the tax year it was published for and a link to the page it was read from, so you can check it before relying on the figure. Unverified states show neither, because there is nothing to show.

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State Income Tax Calculator – Calculate Estimated State Tax