Free online VAT calculator. Add or remove VAT (reverse VAT) and sales tax: enter a net or gross amount and rate to get the net, VAT and gross. Runs in your browser.
The calculation runs in your browser. Nothing is uploaded.
Your amount is net (before tax) — we add the VAT and show the gross.
Presets are reference standard rates and may be out of date.
This is an arithmetic calculator, not tax advice. Rate presets are a reference and may be out of date — confirm the correct rate yourself.
No. The calculation runs entirely in your browser with JavaScript — the amounts you enter never leave your device and nothing is uploaded. There is no registration and no tracking of what you calculate.
Adding VAT starts from a net amount (before tax): VAT = net × rate, and gross = net + VAT. Removing VAT — sometimes called a reverse or backwards VAT calculation — starts from a gross amount that already includes tax: net = gross ÷ (1 + rate), and the VAT is the difference. Use Remove VAT when you have a tax-inclusive price and need to know the tax inside it.
No. This is a deterministic arithmetic calculator, not tax advice and not a check of compliance for any jurisdiction. The country rate presets are a convenience reference and can become out of date — many countries also have reduced rates for specific goods, and the US has no federal VAT (sales tax varies by state and city). Always confirm the correct rate for your situation.