DocomintCalculadora de IVA
Adicione o IVA a um preço líquido ou remova-o de um preço com IVA incluído, a qualquer taxa.
What is a Calculadora de IVA?
Handles both directions of a VAT calculation: adding VAT onto a net price (common when quoting a B2C price from a B2B cost) and — the step people get wrong more often — extracting the net price and VAT amount from a price that already includes VAT, which needs dividing by (1 + rate), not just subtracting a flat percentage.
How to use the Calculadora de IVA
- Choose whether you're adding VAT to a net price or removing it from a gross price
- Enter the price and the VAT rate
- The net, VAT, and gross amounts appear instantly, calculated on your device
Formula
Add VAT: Gross = Net × (1 + rate/100) | Remove VAT: Net = Gross ÷ (1 + rate/100)
Removing VAT divides by (1 + rate), it doesn't subtract the percentage directly — those give different, and the direct-subtraction one wrong, answers.
Example
A gross, VAT-inclusive price of $120 at a 20% VAT rate has a net price of $100 (not $96, which is what subtracting 20% directly would wrongly give) — remove mode divides by 1.20 first, then reports the $20 VAT as the difference.
Common mistakes
- Subtracting the VAT percentage straight off a gross price instead of dividing by (1 + rate) — a $120 price at 20% VAT has a $100 net price, not $96.
- Using Add mode on a price that already includes VAT, effectively taxing it twice.
- Assuming one flat VAT rate applies everywhere — actual rates vary significantly by country and, in many places, by product category.
Frequently asked questions
How do you remove VAT from a gross (VAT-inclusive) price?
Divide the gross price by (1 + VAT rate/100), not by subtracting the percentage directly. A $120 price including 20% VAT has a net price of $120 / 1.20 = $100 — subtracting 20% of $120 directly would wrongly give $96.
What is VAT?
Value Added Tax — a consumption tax applied at each stage of production/sale in the UK, EU, and many other countries, usually already included in the displayed retail price rather than added at checkout like US sales tax.
What VAT rate should I use?
Whatever rate applies in your country and for that product category — VAT rates commonly range from single digits up to around 25% and vary by jurisdiction, so enter the specific rate rather than assuming a default.
Is VAT the same as sales tax?
Functionally similar but structurally different — VAT is collected at each stage of production and usually baked into the displayed price, while US-style sales tax is added once at the final point of sale, on top of the sticker price.
Is my numbers uploaded anywhere?
No — Calculadora de IVA runs entirely in your browser using JavaScript/WebAssembly. Your numbers is never sent to a server.