Sales Tax Calculator
Add sales tax to a price in seconds. Enter the amount before tax and your local tax rate, and the calculator shows the tax amount and the total you will pay.
$
%
Total with tax
$108.25
Tax amount$8.25
Before tax$100.00
How it works
The tax is the amount multiplied by the rate: Tax = Amount × (Rate ÷ 100). The total is the original amount plus the tax. The same method works for VAT or GST, just enter the relevant rate.
Frequently asked questions
How do I calculate sales tax?
Multiply the pre-tax amount by the tax rate divided by 100 to get the tax, then add it to the amount for the total.
Does this work for VAT or GST?
Yes. Enter your VAT or GST percentage as the rate and the calculation is the same.
What tax rate should I use?
Use the combined rate that applies where the sale takes place, since rates vary by country, state and city.