Enter Price & Tax Rate
Results
Sales Tax Calculator Guide
Add sales tax to any price to see the real total at checkout. Enter the price and your local tax rate to get the tax amount and the final total.
Tax = price × (rate ÷ 100); total = price + tax. To back out tax from a total: price = total ÷ (1 + rate ÷ 100).
How Do I Calculate Sales Tax?
Multiply the price by the tax rate as a decimal to get the tax, then add it to the price. A 7.25% tax on $100 is $7.25, for a total of $107.25. Rates vary by state, county, and city.
Sales Tax on $100 at Common Rates
| Rate | Tax | Total |
|---|---|---|
| 5% | $5.00 | $105.00 |
| 7.25% | $7.25 | $107.25 |
| 10% | $10.00 | $110.00 |
Shopping a sale? Combine with the Discount Calculator, or split a bill with the Tip Calculator.
Frequently Asked Questions
How do I calculate sales tax?
Multiply the price by the tax rate divided by 100, then add it to the price.
What is 7.25% sales tax on $100?
It's $7.25, for a total of $107.25.
How do I find the price before tax?
Divide the total by one plus the tax rate as a decimal.
Is sales tax the same everywhere?
No — it varies by state and often by county and city, so use your local combined rate.
Need a Calculator We Don't Have Yet?
Can't find the calculator you need? We'll build it. Submit your request and we'll evaluate it for our growing collection.
Request Calculator