🧾 Sales Tax Calculator
Enter the price before tax and your combined sales tax rate (state plus local). The calculator shows the tax and the final price you pay at the register.
How the Sales Tax Calculator works
The tax is the price multiplied by the tax rate. Most US states add a state rate and a city or county rate together, so use the combined rate shown on a receipt from your area.
Step-by-step calculation
- 1Enter the price before tax.
- 2Enter the combined tax rate.
- 3Multiply and add to the price.
Worked example
A $100.00 item with an 8.25% combined rate: tax = 100 × 0.0825 = $8.25, so the total is $108.25.
Sales Tax Calculator examples
| Price before tax ($) | Total with tax |
|---|---|
| 50 | $54.13 |
| 75 | $81.19 |
| 100 | $108.25 |
| 125 | $135.31 |
| 150 | $162.38 |
Other inputs kept at the calculator's default values. Results calculated by this calculator.
Why use a Sales Tax Calculator?
Know the checkout total before you buy.
Important factors that can affect your results
- State plus local rates.
- Some items are tax-exempt.
- Online purchases from other states.
Frequently asked questions
How do I find the pre-tax price from a total?
Divide the total by (1 + rate ÷ 100). For example, $108.25 ÷ 1.0825 = $100.00.
Does every state have sales tax?
No. Delaware, Montana, New Hampshire and Oregon have no statewide sales tax, and Alaska has none at state level although some towns charge it.
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Last reviewed November 2026 · How we build and check our tools · Report a problem