UlvixorVAT Calculator
Calculate VAT on a price in two directions: add VAT to a base price to get the total, or extract VAT from a total that already includes it to get the base price. You set the rate, since it varies by country and by the type of product or service.
How it works
- Choose the 'Add VAT to a price' tab if you're starting from a price without taxes, or 'Extract VAT from a total' if you already have the final price.
- Enter the price (base or total, depending on the tab) and the VAT rate as a percentage.
- In 'Add' mode, the tool calculates the VAT amount as base × (rate / 100) and adds it to the base price to get the total.
- In 'Extract' mode, the tool calculates the base price by dividing the total by (1 + rate / 100), assuming VAT is already included in that total.
- All three values (base price, VAT, and total) update automatically as you type.
Use cases
- Calculating the final price of a product or service before issuing an invoice or quote.
- Finding out how much VAT is included in a final price you saw in a store or on a receipt.
- Comparing how a budget changes when you apply different VAT rates, for example when selling in different countries.
- Checking that an invoice you received calculated VAT correctly on the declared base.
Use cases
- Calculating the final price of a product or service before issuing an invoice or quote.
- Finding out how much VAT is included in a final price you saw in a store or on a receipt.
- Comparing how a budget changes when you apply different VAT rates, for example when selling in different countries.
- Checking that an invoice you received calculated VAT correctly on the declared base.
Common mistakes
- Applying the VAT rate to the final price instead of the base price when calculating how much to add.If the price you have already includes VAT, use the 'Extract VAT from a total' tab, not 'Add'. Applying the rate directly to a total that already includes VAT gives an incorrect result.
- Dividing the total by the rate (total / rate) to extract VAT, instead of dividing by (1 + rate/100).The base price isn't the total minus a simple percentage of the total; it's total / (1 + rate/100). The tool applies this formula automatically in the 'Extract' tab.
- Assuming the VAT rate is the same in every country or for every product.The VAT rate varies by country (and sometimes by the type of product or service within the same country). Always enter the current rate that applies to your case, not a fixed value from memory.
Frequently asked questions
The rate varies by country and, in some cases, by the type of product or service. This tool doesn't assume any fixed rate: enter whichever one applies to your situation (for example, some countries use rates around 21%, others 16% or 19%, but you should confirm the rate that currently applies to your case).
'Adding VAT' starts from a price without taxes and calculates what the total would be with VAT included. 'Extracting VAT' does the opposite: it starts from a final price that already includes VAT and calculates what the base price was before VAT was applied.
Because VAT is a percentage of the base price, not of the total. To extract it correctly you need to divide the total by (1 + rate/100) to find the base price, then subtract that base price from the total to get the VAT amount. That's the formula this tool applies automatically.
No. All calculations are performed locally in your browser using JavaScript. No data is sent to or stored on any server.
Alternatives
In a spreadsheet you can build both formulas, base × (1 + rate/100) to add VAT and total / (1 + rate/100) to extract it, though it's easy to invert the formula by mistake. This calculator separates both cases into distinct tabs so they don't get mixed up, and it doesn't assume any fixed rate: you enter whichever one applies, whether that's 21%, 16%, 19%, or any other.