Power Calculators

🇬🇧 UK VAT Calculator

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Only used with "Other rate".

Fill in the details and click Calculate to see your results.

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📘 About the UK VAT Calculator

VAT (Value Added Tax) is charged on most goods and services sold by VAT-registered businesses in the UK. The standard rate is 20%; a reduced rate of 5% applies to things like domestic energy and children's car seats; and many essentials such as most food, books and children's clothes are zero-rated.

To add VAT, enter the net price. To work backwards from a price that already includes VAT, choose "Remove VAT": at 20% the VAT is one sixth of the gross price, not 20% of it.

🧮 Formula

Add VAT
VAT = P × r ÷ 100; Gross = P + VAT
Remove VAT
Net = P ÷ (1 + r ÷ 100); VAT = P − Net

Where

  • P = amount
  • r = VAT rate (%)
At 20%, VAT in a gross price = gross ÷ 6.

✏️ Worked examples

£100 net + 20% VAT

You enter
Amount (£)100
CalculationAdd VAT (amount is net, before VAT)
VAT rate20% — standard rate
You get
Gross amount, including VAT (£)120
Net amount, excluding VAT (£)100
VAT (£)20

Gross £120, VAT £20.

Try this example →

Remove 20% VAT from £240

You enter
Amount (£)240
CalculationRemove VAT (amount is gross, includes VAT)
VAT rate20% — standard rate
You get
Gross amount, including VAT (£)240
Net amount, excluding VAT (£)200
VAT (£)40

Net £200, VAT £40 (= 240 ÷ 6).

Try this example →

🧭 How to use this calculator

What you enter

  • Amount (£)
  • Calculation
  • VAT rate
  • Other rate (%)Only used with "Other rate".

What you get

  • Gross amount, including VAT (£)
  • Net amount, excluding VAT (£)
  • VAT (£)

💡 UK VAT facts

  • Standard rate 20%, reduced rate 5%, zero rate 0%. Some supplies (insurance, most education and health care) are exempt.
  • You must register for VAT when your taxable turnover goes over £90,000 in any 12-month period (threshold from 1 April 2024).
  • Small businesses may use the Flat Rate Scheme instead — see the UK Flat Rate VAT calculator.

❓ Frequently asked questions

How do I add 20% VAT?

Multiply the net price by 1.2. £100 + VAT = £120.

How do I remove 20% VAT?

Divide the gross price by 1.2, or take one sixth of it as the VAT. £120 ÷ 1.2 = £100 net; VAT £20.

Why isn't VAT 20% of the gross price?

Because the 20% was added to the net price. In a £120 price, the VAT (£20) is 20% of £100 but only 16.67% of £120.

When must I register for VAT?

When your VAT-taxable turnover exceeds £90,000 in the last 12 months, or you expect it to in the next 30 days alone.