Sales Tax Calculator
Add a sales tax rate to a price to see the tax amount and the final total.
- Free
- No sign-up
Enter an amount and a tax rate to see the total.
Worked example
With these example inputs:
- Amount before tax$100
- Sales tax rate8.25%
Total with tax: $108.25
- Added amount$8.25
- Base amount$100.00
- As a share of the total7.62%
- If the first figure were 10% higher$119.08
Frequently asked questions
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. For example, 8% on 100 is 8, for a total of 108.
Why does sales tax vary so much?
Sales tax is set locally, so the rate depends on the state, county and city. Enter the combined rate that applies where you are buying.
What is the difference between sales tax and VAT?
Sales tax is charged once at the final sale, while VAT is collected in stages across production. The customer often pays a similar amount either way.
Is sales tax included in the listed price?
In the US it is usually added at checkout. In many other countries the tax is already baked into the shelf price.
Are all goods taxed the same?
No. Many places exempt or reduce tax on essentials such as groceries or medicine, so the rate can depend on the item.