VAT Calculator
Add or remove VAT from a price at any standard VAT rate.
This vat calculator adds VAT to a net price (before VAT) or removes VAT from a gross price to find the amount without VAT, at any percentage rate. It works for the UK, EU, or any country using a Value Added Tax system, showing both the net (VAT-exclusive) and gross (VAT-inclusive) amounts.
Enter a price and VAT rate, choose add or remove, and the vat cal returns both figures instantly.
Worked Calculation Examples
| Scenario | Result | Calculation Step |
|---|---|---|
| Adding 20% VAT to a £100 net price | £120.00 gross (£20.00 VAT) | Gross = £100 × 1.20 = £120.00. VAT amount = £120.00 − £100.00 = £20.00. |
| Removing 20% VAT from a £250 gross price | £208.33 net (£41.67 VAT) | Net = £250 ÷ 1.20 = £208.33. VAT amount = £250.00 − £208.33 = £41.67. |
Adding VAT to a Net Price
To add VAT, multiply the net price by (1 + VAT rate as a decimal). At a 20% VAT rate, a net price of £100 becomes £120 gross - the VAT amount is £20.
Removing VAT from a Gross Price
To find the net price from a VAT-inclusive gross price, divide by (1 + VAT rate). A £120 gross price at 20% VAT has a net price of £120 / 1.20 = £100 - this vat tax calculation is the reverse of adding VAT, not simply subtracting the percentage from the gross amount.
How to Use the VAT Calculator
- Open the VAT Calculator and enter the values requested in the input fields.
- Check the units, percentages, dates, or time periods before reading the answer.
- Review the instant result and adjust any value to compare another scenario.
- Use the formula, example, and FAQs below to understand how the vat calculator works.
Frequently Asked Questions
How do I calculate VAT on a price?
Multiply the net price by the VAT rate (as a decimal) to get the VAT amount, then add it to the net price for the gross total.
How do I remove VAT from a total price?
Divide the gross price by (1 + VAT rate) to find the net price - you cannot simply subtract the VAT percentage from the gross total, since that percentage was calculated on the smaller net amount.
What VAT rate should I use?
Standard VAT rates vary by country - for example, 20% in the UK - so use the specific rate that applies to your country and the type of goods or services involved.
How do I use this vat calculator?
Enter the known values, review the units or settings, and the calculator updates the result instantly. The formula and example on this page show how the answer is produced.
What does the VAT Calculator calculate?
Add or remove VAT from a price at any standard VAT rate. It is designed for fast browser-based calculations without sign-up, downloads, or manual spreadsheet setup.
What formula does this vat use?
The formula is: Gross Price = Net Price × (1 + VAT Rate). VAT was first implemented nationally by France in 1954, designed by French economist Maurice Lauré as an improvement over older cascading turnover taxes that taxed the same value multiple times as a product moved through a supply chain. Because VAT is collected incrementally at each stage of production but ultimately borne by the end consumer, removing it from a gross price requires dividing by (1 + rate) rather than simply subtracting the percentage, since the tax was calculated on the smaller net amount, not the final gross price.
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Last updated: September 27, 2026.