VAT Calculator
Add VAT to a net amount, or remove VAT from a gross amount.
Calculate VAT
Use the net amount and VAT rate to calculate the VAT and gross total, or start with a gross amount to find the net value.
Add VAT: Gross = Net × (1 + VAT rate / 100)
Remove VAT: Net = Gross / (1 + VAT rate / 100)
How is VAT calculated?
To add VAT (Net to Gross)
Multiply the net amount by (1 + VAT rate percentage). For example, to add 20% VAT to £100:
£100 × 1.20 = £120
To remove VAT (Gross to Net)
Divide the gross amount by (1 + VAT rate percentage). For example, to remove 20% VAT from £120:
£120 ÷ 1.20 = £100
Frequently asked questions
How do I add VAT to a net amount?
Multiply the net amount by 1 plus the VAT rate as a decimal. At 20%, multiply the net amount by 1.20 to get the gross amount.
How do I remove VAT from a gross amount?
Divide the gross amount by 1 plus the VAT rate as a decimal. At 20%, divide the gross amount by 1.20 to find the net amount.
Why can’t I subtract 20% from a VAT-inclusive price?
A VAT-inclusive price is 120% of the net amount at a 20% rate. Removing VAT requires dividing by 1.20, not subtracting 20% of the gross amount.
What is the VAT amount on a net price?
Multiply the net price by the VAT rate divided by 100. For example, 20% VAT on £100 net is £20.
Can I use a different VAT rate?
Yes. Enter the VAT rate that applies to the transaction. VAT rates and exemptions depend on the country, item, and relevant tax rules.
Is VAT calculated before or after a discount?
When a discount reduces the taxable selling price, VAT is generally calculated on the discounted net price. Check the rules that apply to your transaction.
Related percentage calculators
Use a focused calculator when your question needs a different baseline or a price-specific formula.
Percentage Calculator
Find a percentage, percentage ratio, or percentage change.
Percentage Increase Calculator
Measure how much a value has grown from its starting point.
Percentage Decrease Calculator
Work out the percentage reduction from an original value.
Percentage Difference Calculator
Compare two values when neither one is the original baseline.
Reverse Percentage Calculator
Find an original amount from a final value and percentage.
Discount Calculator
Calculate the amount saved and the final sale price.