Tax Calculator
Add sales tax or VAT to a price, or work backwards from a tax-inclusive total, and see the tax amount.
Private ● Runs entirely in your browser Your text never leaves your device.No account required.No data uploaded.Nothing stored unless you choose to save it.Enter a price and tax rate to calculate.
- Tax Amount
- $0.00
- Price Before Tax
- $0.00
Common Questions
How do I add sales tax to a price?
Multiply the price by the tax rate to get the tax, then add it on. For a $100 item at 8.25%, the tax is $8.25 and the total is $108.25. The calculator does both and shows the tax amount separately.
How do I find the price before tax from a total?
Switch to "Remove tax from a total" and enter the tax-inclusive amount and the rate. The tool divides by one plus the rate: $108.25 ÷ 1.0825 = $100.00. The difference, $8.25, is the tax that was included.
Why is removing tax not just subtracting the percentage?
Because the tax was charged on the smaller pre-tax price, not on the total. Subtracting 8.25% of $108.25 removes $8.93, which is too much. You must divide by 1.0825 instead, which correctly returns the original $100.
Does this work for VAT and GST too?
Yes. VAT, GST, and sales tax all work the same arithmetically: a percentage of the net price. Enter your local rate and the calculator adds or removes it the same way. It does not apply country-specific rules like exemptions or tiered rates.
Why might the total be a cent off from a receipt?
Rounding. Stores round each line or the tax total to the nearest cent, and rules differ by jurisdiction. This calculator rounds the displayed figures to two decimals, so a result can land a cent away from a specific till that rounds differently.