# State Tax Calculator (Income and Sales Tax by State)

URL: https://speedycalculator.com/calculators/finance/state-tax/
Last updated: 2026-10-25

> The state tax calculator shows a U.S. state's top income tax rate and statewide sales tax rate, and estimates the state income tax at the top rate and the sales tax on a purchase.

## Inputs

- Where do you live?
- State taxable income
- Purchase amount

## Results

- Top state income tax rate
- State sales tax rate
- Income tax at the top rate (upper estimate)
- State sales tax on the purchase

## Formula

```
Approximate state income tax (at the top marginal rate) = taxable income × top rate
Sales tax = purchase × state rate (local rates are extra)
```

## Explanation

Nine states have no tax on wages – Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington and Wyoming. Five have no statewide sales tax. Most states use graduated rates, so tax at the top rate overstates the bill for lower incomes; use a state-specific calculator for a precise figure.

### How to use the State Tax Calculator

- **Where do you live?**
- **State taxable income**
- **Purchase amount**

Results update as you type, and every field accepts the units shown in its menu.

### How it works

Choose your state and enter your taxable income and a purchase amount.

### Tips

- Tax figures here are estimates for planning – your actual tax depends on credits, deductions and local rules.
- Check the tax year and filing status before you rely on a result.
- Use gross (before-tax) figures unless a field asks for take-home pay.
- When in doubt, confirm with the tax authority's own calculator or a tax professional.

### Common mistakes to avoid

- Confusing marginal and effective tax rates.
- Adding sales tax to a price that already includes it.
- Forgetting payroll taxes (Social Security and Medicare) on wages.

### Inputs explained

FieldWhat to enterWhere do you live?Choose one: Alabama, Alaska, Arizona, Arkansas …State taxable incomeAmount in your currencyPurchase amountAmount in your currency

### What each result means

- **Income tax at the top rate (upper estimate)** = [State taxable income]×[Top state income tax rate]÷100
- **State sales tax on the purchase** = [Purchase amount]×[State sales tax rate]÷100

### Example values

How the main result changes when **State taxable income** changes and everything else stays at the example values above:

State taxable incomeIncome tax at the top rate (upper estimate)40,000060,000080,0000100,0000120,0000160,0000

## Worked example

Inputs — Where do you live?: Texas; State taxable income: $80,000; Purchase amount: $1,000.

Results — Top state income tax rate = 0 %; State sales tax rate = 6.25 %; **Income tax at the top rate (upper estimate) = $0.00**; State sales tax on the purchase = $62.50.

## FAQ

**Which states have no income tax?**
Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington and Wyoming.

**Which states have no sales tax?**
Alaska (state level), Delaware, Montana, New Hampshire and Oregon.

**Are these the latest rates?**
They are the most recent published rates (mostly 2025); several states cut rates for 2026.

**What formula does the State Tax Calculator use?**
Approximate state income tax (at the top marginal rate) = taxable income × top rate.


## Sources

- [Tax Foundation – State tax rates](https://taxfoundation.org/)