What Is This Tool?
The Sales Tax Calculator by US State adds the state base sales tax rate and an optional local rate to a price, then shows the tax amount and total price.
What Can You Do With It?
Find the total price at checkout. Add tax to an invoice or quote. Compare tax between states.
How Does It Work?
Total rate = state rate + local rate. Sales tax = price × total rate. Total price = price × (1 + total rate).
Key Benefits
Built-in list of state base rates. Add your city or county rate for a closer total. Instant results with no sign-up.
Limitations and Important Notes
The list contains state base rates only. Local rates must be entered by you. Rates change; confirm with your state revenue department for official use. Some items (such as groceries) may be taxed differently.
Privacy and Security
The numbers you enter in the Sales Tax Calculator by US State (price before tax, state, local tax rate and so on) are calculated in your browser. They are not sent to or saved on Usekit servers, and they disappear when you close the page.
Real-World Example
Inputs: Price before tax = 100; State = California (7.25%); Local tax rate = 0. Results: Total tax rate = 7.25%; Sales tax = $7.25; Total price = $107.25.
Frequently Asked Questions
Which states have no state sales tax?
In this list: Alaska, Delaware, Montana, New Hampshire and Oregon show 0%. Alaska still allows local sales taxes.
Where do I find my local rate?
Check your state or county revenue website for the combined local rate at your address.
Can I calculate tax backward from a total?
Not directly. Divide the total by (1 + rate) to find the price before tax.
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How to use this tool
- Replace the sample values with your own numbers.
- Adjust any options; the results update as you type.
- Read your results and any notes shown below the inputs.