Free online calculator

Sales Tax Calculator

Use any tax percentage to calculate tax forward from a subtotal or reverse-calculate the original price from a tax-inclusive total.

Before tax$100.00
Tax amount$13.00
After tax$113.00

Use any tax rate. Presets are only shortcuts, not automatic location-based tax advice.

How to use the Sales Tax Calculator

  1. Choose Add tax or Remove included tax.
  2. Enter the price.
  3. Enter the applicable tax rate.
  4. Review the before-tax amount, tax and after-tax total.

Examples

Add 13% tax

A $100 subtotal with 13% tax gives $13 tax and a $113 total.

Reverse tax

Enter a tax-inclusive total to calculate the corresponding pre-tax amount.

Frequently asked questions

Is the Sales Tax Calculator free to use?

Yes. You can use the tool without creating an account.

Does the calculator automatically know my local tax rate?

No. Tax rates can depend on jurisdiction and transaction type, so you enter the rate that applies to your calculation.

Does this tool work on a phone?

Yes. The interface is designed to work on phones, tablets and desktop browsers.

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