Jack Tools
VAT Calculator
Quickly add VAT, remove VAT, and calculate the VAT amount from a price.
Enter VAT details
£
This calculator gives a simple VAT estimate based on the amount and rate you enter.
Result amount
£0.00
VAT amount: £0.00
VAT amount
£0.00
Base amount
£0.00
Result amount
£0.00
VAT rate used
0%
VAT breakdown
Mode
Add VAT
Input amount
£0.00
VAT amount
£0.00
Total / net result
£0.00
How This VAT Calculator Works
This VAT calculator helps you quickly work out VAT on a price by either adding VAT to a net amount or removing VAT from a gross amount.
If you choose to add VAT, the calculator starts with the base price and adds the selected VAT rate to produce the total including VAT.
If you choose to remove VAT, the calculator starts with a VAT-inclusive amount and works backwards to estimate the net amount and the VAT portion.
Amount
The number you want to calculate VAT from, either net or gross depending on the mode selected.
VAT rate
The percentage used to calculate the VAT amount, such as 20%, 5%, or 0%.
Add VAT mode
Use this when you have a net price and want the total including VAT.
Remove VAT mode
Use this when you have a gross price and want the VAT element and net amount.
Example VAT Calculations
Add 20% VAT
Net amount£100.00
VAT rate20%
VAT amount£20.00
Total = £120.00
Remove 20% VAT
Gross amount£120.00
VAT rate20%
VAT amount£20.00
Net = £100.00
Add 5% VAT
Net amount£250.00
VAT rate5%
VAT amount£12.50
Total = £262.50
Zero rate example
Amount£80.00
VAT rate0%
VAT amount£0.00
No VAT added
VAT Calculator FAQs
VAT stands for Value Added Tax. It is a consumption tax added to many goods and services.
To add VAT, take the net amount and multiply it by the VAT rate, then add that VAT amount back onto the original price.
To remove VAT, divide the VAT-inclusive amount by 1 plus the VAT rate. This gives the net amount before VAT.
This calculator includes common rates such as 20%, 5%, and 0%, which are useful for many quick VAT calculations.
It is accurate for basic VAT maths, but it does not account for more complex VAT rules, sector-specific treatment, or invoicing edge cases.