UK Tools

Finance & Money

UK VAT Calculator

Value Added Tax (VAT) is charged on most goods and services in the UK. Whether you are pricing a quote, checking an invoice, or converting a VAT-inclusive total back to net, a clear net / VAT / gross split saves time and avoids mistakes.

This free UK VAT calculator supports the standard 20% rate, the reduced 5% rate, zero-rating, and a custom percentage. Choose add VAT, remove VAT from a gross figure, or show the VAT amount alone. Everything runs in your browser.

It does not model flat-rate schemes, margin schemes, partial exemption or place-of-supply rules. For registration thresholds and special schemes, always check current HMRC guidance.

Interactive tool

UK VAT rates · standard 20%, reduced 5%, zero 0%

Most goods and services are standard-rated. Some items are reduced or zero-rated. This tool does simple add / remove maths — not partial exemption, flat rate or margin schemes.

Applied rate

20%

Add VAT to net amount

VAT amount£20.00
Net (ex VAT)£100.00
Gross (inc VAT)£120.00
Rate used20%

For guidance only. VAT registration, special schemes and exceptions are not covered — check HMRC guidance for your situation.

How to use this tool

  1. Pick Add VAT, Remove VAT, or VAT only.
  2. Enter the net amount (or gross amount if removing VAT).
  3. Select 20%, 5%, 0% or a custom rate.
  4. Read net, VAT and gross results and copy them if needed.

UK VAT rates in plain English

The standard rate of VAT in the UK is 20% for most taxable supplies. A reduced rate of 5% applies to some goods and services (for example certain energy-saving materials or children’s car seats — categories change, so check HMRC lists). Zero-rated supplies are taxable at 0% (you may still need to show them on VAT returns if you are registered).

To add VAT to a net price: gross = net × (1 + rate). To extract VAT from a VAT-inclusive price: net = gross ÷ (1 + rate), and VAT = gross − net. Using division (not multiplying by 20% of the gross) is the correct way to remove standard-rate VAT.

Frequently asked questions

How do I add 20% VAT?
Multiply the net amount by 0.20 for the VAT, or by 1.20 for the gross total. Example: £100 net → £20 VAT → £120 gross.
How do I remove VAT from a gross price?
Divide the gross amount by 1.20 for standard-rated VAT (or 1.05 for 5%). Do not simply subtract 20% of the gross — that overstates the VAT.
Is everything charged at 20%?
No. Some supplies are reduced-rated, zero-rated or exempt. Use the correct rate for the supply and check HMRC if unsure.
Does this handle VAT registration?
No. It only does price maths. Registration thresholds and return filing are separate obligations.
Is my data stored?
No. All calculations run in your browser only.

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