UK VAT Calculator
Quickly add or remove VAT from an amount and see the net price, VAT amount and total including VAT.
Add or remove VAT
Enter an amount, choose whether VAT should be added or removed, and select the VAT rate.
Enter the net amount before VAT is added.
Choose the VAT rate that applies to the goods or services.
Price including VAT
£100.00 plus 20% VAT gives a total of £120.00.
See how much of the total is VAT
The visual below compares the net price with the VAT included in the total.
Net price£100.00
VAT£20.00
What does VAT mean?
Value Added Tax (VAT) is a tax charged on many goods and services. VAT-registered businesses generally charge VAT on taxable supplies at the rate that applies to those goods or services.
The standard VAT rate applies to most taxable goods and services in the UK.
Certain goods and services qualify for a reduced VAT rate.
Some taxable goods and services are zero-rated, meaning VAT is charged at 0%.
How we calculate VAT
Adding and removing VAT require slightly different calculations.
Enter your amount
Enter either the net price before VAT or the gross price that already includes VAT.
Choose the VAT rate
Select the standard 20%, reduced 5%, or zero 0% VAT rate.
See the full breakdown
The calculator shows the net price, VAT amount and total price including VAT.
Adding and removing VAT correctly
Removing VAT from a VAT-inclusive amount is not the same as simply subtracting the VAT percentage.
Multiply the net amount by 1.20. For example, £100 × 1.20 = £120.
On £100 at 20%, the VAT amount is £20 and the VAT-inclusive total is £120.
Divide the VAT-inclusive amount by 1.20. For example, £120 ÷ 1.20 = £100.
The same principle applies to other rates. At 5%, for example, divide a VAT-inclusive price by 1.05.
How much is £100 plus VAT?
Here is a simple example using the standard 20% UK VAT rate.
To reverse the calculation, £120 ÷ 1.20 gives the original £100 net price.
UK VAT calculator FAQs
Common questions about calculating VAT and VAT-inclusive prices.
What is the standard VAT rate in the UK?
The standard UK VAT rate is 20%. It applies to most taxable goods and services.
How do I add 20% VAT to a price?
Multiply the net price by 1.20. For example, £100 multiplied by 1.20 gives £120 including VAT.
How do I remove 20% VAT from a price?
Divide the VAT-inclusive price by 1.20. For example, £120 divided by 1.20 gives a net price of £100.
Why can't I just subtract 20% to remove VAT?
Because the 20% VAT was calculated from the original net price, not from the larger VAT-inclusive total. A £100 net price becomes £120 after VAT. Subtracting 20% from £120 would give £96, which is not the original net price.
What is the reduced VAT rate?
The UK reduced VAT rate is 5% and applies to certain goods and services. Whether the reduced rate applies depends on the supply.
Does zero-rated mean VAT exempt?
No. Zero-rated supplies are taxable supplies charged at 0% VAT. VAT-exempt supplies are treated differently for VAT purposes.
About this VAT calculation
The calculator uses the VAT rate you select to estimate the net amount, VAT amount and VAT-inclusive total.
VAT rates and their application are determined by UK VAT rules.
GOV.UK VAT rates →Businesses should use official HMRC guidance when determining VAT treatment.
GOV.UK VAT guidance →Important: This calculator is for general information and illustration only. It does not constitute tax, accounting or financial advice. Check official HMRC guidance or obtain professional advice where necessary. Last reviewed: September 2026.