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Sales Tax Calculator
Enter a price and your local tax rate to get the sales tax and the total you will pay.
Sales tax
—
Tax added to the price.
| Total with tax | — |
|---|---|
| Price before tax | — |
| Tax rate | — |
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Enter your figures above to see the step-by-step working.
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How the Sales Tax Calculator Works
Sales tax is a percentage added to the price of goods and services at checkout. To find it, multiply the pre-tax price by the tax rate; add that to the price for the total you actually pay. This calculator shows both the tax and the grand total.
Rates vary widely by location because they combine state, county and city taxes, so a rate of anywhere from 0% to over 10% is possible in the US. Enter your local combined rate to get an exact figure. To work backwards from a tax-included total, use our reverse sales tax calculator.
tax = price × rate total = price + tax
Frequently Asked Questions
How do I calculate sales tax?
Multiply the item price by the sales tax rate expressed as a decimal — for example 7.5% is 0.075. A $100 item at 7.5% has $7.50 in tax, for a $107.50 total.
Why is the sales tax rate different where I live?
Sales tax usually stacks a state rate with county and city rates, so the combined rate depends on exactly where the sale happens. Some states have no sales tax at all.
How do I find the price before tax?
Divide the total by one plus the tax rate. Our reverse sales tax calculator does this for you and shows the tax that was included.
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