Sales Tax Calculator
Add sales tax to a price to get the total, or remove it from a total to find the price before tax. Enter the amount and your rate; tax is rounded to the cent. How it works
Use the Sales Tax Calculator
About the Sales Tax Calculator
Sales tax = price × rate ÷ 100. At 8.25%, a $100 purchase carries $8.25 of tax and costs $108.25. To go backward, divide the total by 1 plus the rate: $100 including 8.25% tax is $92.38 before tax. The sales tax calculator does both at whatever rate you enter.
Sales tax on a $100 purchase
| Rate | Tax | Total |
|---|---|---|
| 5% | $5.00 | $105.00 |
| 6% | $6.00 | $106.00 |
| 6.25% | $6.25 | $106.25 |
| 7% | $7.00 | $107.00 |
| 7.25% | $7.25 | $107.25 |
| 8% | $8.00 | $108.00 |
| 8.25% | $8.25 | $108.25 |
| 8.875% | $8.88 | $108.88 |
| 9.5% | $9.50 | $109.50 |
| 10% | $10.00 | $110.00 |
| 10.25% | $10.25 | $110.25 |
Tax = $100 × rate, rounded to the cent. Use the Add tax to a price setting.
Price before tax inside a $100 total
| Rate | Price before tax | Tax included |
|---|---|---|
| 5% | $95.24 | $4.76 |
| 6% | $94.34 | $5.66 |
| 6.25% | $94.12 | $5.88 |
| 7% | $93.46 | $6.54 |
| 7.25% | $93.24 | $6.76 |
| 8% | $92.59 | $7.41 |
| 8.25% | $92.38 | $7.62 |
| 8.875% | $91.85 | $8.15 |
| 9.5% | $91.32 | $8.68 |
| 10% | $90.91 | $9.09 |
| 10.25% | $90.70 | $9.30 |
Price before tax = $100 ÷ (1 + rate). Use the Remove tax from a total setting.
Frequently asked questions
- How do I calculate sales tax on a purchase?
- Multiply the price by the tax rate as a decimal. $49.99 at 7% is $49.99 × 0.07 = $3.50 of tax, for a total of $53.49.
- How do I remove sales tax from a total?
- Divide the total by 1 plus the rate. $50.00 including 7% tax is $50.00 ÷ 1.07 = $46.73 before tax, and the other $3.27 is tax. Taking 7% off the total would give $46.50, which is wrong.
- What sales tax rate should I use?
- The combined rate where the sale takes place: the state rate plus any county, city or district rate. In the Tax Foundation’s 2026 figures, California’s 7.25% is the highest state-level rate and Louisiana has the highest average combined rate at 10.11%. Your state’s tax agency lists the exact rate for an address.
- Which states have no sales tax?
- Alaska, Delaware, Montana, New Hampshire and Oregon have no statewide sales tax. Alaska allows local sales taxes, which average 1.82%.
- Does it work for VAT or GST?
- For a price that already includes 20% VAT, choose Remove tax from a total: 100.00 including 20% is 83.33 plus 16.67 of tax. Every amount is printed with a dollar sign whatever the currency, so read $83.33 as €83.33 or £83.33. The VAT calculator is set up for VAT rates.
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