VAT Calculation Calculator
Use this VAT calculation calculator to add VAT to a net price, remove VAT from a gross price, or work out how much VAT is included in a price you have already been charged. The default UK standard rate is 20%, but you can change the rate to match a reduced rate, a zero rate, or a rate in another country.
Calculator
How to use this VAT calculator
- Enter the amount in pounds.
- Choose Add VAT if your amount excludes VAT, or Remove VAT if your amount already includes VAT.
- Check the VAT rate — 20% is the UK standard rate by default — and change it if needed.
- Click Calculate to see the net amount, the VAT amount and the gross total.
Worked example: £100 excluding VAT at 20% gives £20 of VAT and a gross total of £120. The same £120 including VAT contains £20 of VAT and a net amount of £100.
Frequently Asked Questions
What is the UK standard VAT rate?
The UK standard VAT rate is 20%. Some goods and services use a reduced rate of 5% or a zero rate, so always check the rate that applies to your item.
How do I add VAT to a price?
Multiply the net price by the VAT rate and add the result to the net price. For example, £100 at 20% is £100 + £20 = £120.
How do I remove VAT from a gross price?
Divide the gross price by 1 plus the rate as a decimal, or use the formula VAT = gross × rate ÷ (100 + rate). For £120 at 20%, the VAT is £20 and the net price is £100.
Is this calculator for business use?
It is a general-purpose arithmetic calculator. For VAT returns and business decisions, check the current rules on gov.uk or ask your accountant.