%Finance / FREE ONLINE TOOL

Sales Tax & VAT Calculator

Free sales tax and VAT calculator for tax-exclusive or tax-inclusive prices. Add or remove tax, apply a percentage discount, and calculate net, tax and gross totals.

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How to use this tool

Enter a price, sales tax or VAT rate, and optional discount. Select whether your entered price excludes or includes tax. The tool calculates the final payable total and the tax amount.

Quick steps

  1. Enter the price, tax rate and any percentage discount.
  2. Choose whether the entered price already includes the tax.
  3. See the net amount, included or added tax, and final payable total.

Practical tip

Taxes differ by country, state, product, exemptions, rounding rule and invoicing requirements. This calculator uses one flat percentage rate and does not provide tax or legal advice.

Common questions

How do I add VAT to a price?

For a tax-exclusive price, multiply the discounted amount by 1 plus the VAT rate divided by 100.

How do I remove VAT from a tax-inclusive price?

Divide the tax-inclusive amount by 1 plus the VAT rate divided by 100, then subtract the net amount to find included tax.

Does the discount happen before or after tax?

The entered price is discounted first. The tax is then calculated or extracted from the discounted price.

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