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🧾 VAT Calculator — Add or Remove VAT & Sales Tax

Instantly calculate VAT or sales tax in both directions: enter an amount and a tax rate to see the net, tax, and gross figures — or work backwards from a tax-inclusive price to find the pre-tax amount. Completely free, runs 100% in your browser, and nothing is ever uploaded to a server.

Private by design. This tool runs entirely in your browser — nothing you enter is uploaded or stored, and it works offline.

About

This VAT calculator supports two modes. In Add VAT mode, you enter a net (pre-tax) amount and a tax rate; the tool multiplies the net by the rate to give you the tax amount, then adds both together for the gross (tax-inclusive) total. In Remove VAT mode, you enter a gross (tax-inclusive) amount and a tax rate; the tool divides by (1 + rate) to recover the net, then subtracts to find the tax portion. Common rates for major countries are listed as quick-select buttons (e.g., 20% UK, 19% Germany, 10% Japan), but you can type any custom rate. Because all calculations run client-side in your browser, no financial figures are ever sent to a server or stored anywhere outside your device.

How to use

  1. Choose a direction: select Add VAT to calculate the tax-inclusive total, or Remove VAT to find the pre-tax amount from a gross price.
  2. Enter your amount in the price field.
  3. Select a tax rate from the quick-select buttons (e.g., 10%, 15%, 19%, 20%) or type a custom rate.
  4. Read your results instantly: net amount (pre-tax), tax amount, and gross amount (total including tax) are all displayed.
  5. Copy any value with one click or use the results in your invoice, quote, or spreadsheet.

FAQ

Is this VAT calculator free?
Yes, completely free — no account, no subscription, and no hidden fees. Open the page and start calculating immediately.
How do I add VAT to a price?
Select Add VAT mode, enter the net (pre-tax) price and your tax rate, and the calculator instantly shows you the tax amount and the total gross price including VAT.
How do I remove VAT from a price to get the net amount?
Select Remove VAT mode, enter the gross (tax-inclusive) price and the tax rate. The calculator divides by (1 + rate) to recover the net price and shows the tax portion separately.
What VAT or sales tax rate should I use?
Use the standard rate for your country — for example, 20% in the UK, 19% in Germany, 21% in Spain, 10% in Japan, or the applicable state/local sales tax rate in the US. Quick-select buttons cover the most common rates, and you can type any custom percentage.
Is my financial data private? Does it get uploaded anywhere?
Yes, completely private. All calculations happen entirely in your browser — no amount, rate, or result is ever sent to a server or stored outside your device. The tool also works fully offline once the page is loaded.