# VAT calculator UK: add or remove 20% VAT | ComputeNow

URL: https://computenow.co.uk/vat-calculator/

> Add VAT to a price or take it off at 20%, 5%, 0% or any rate. See the net price, the VAT and the gross price instantly.

This calculator shows a worked example below. To use your own figures, add them to the URL as query parameters (listed in https://computenow.co.uk/llms.txt), for example https://computenow.co.uk/vat-calculator/?<parameter>=<value>.

[What's Left, step 1 of 7: What will I take home?](https://computenow.co.uk/money-plan/#steps)

# VAT calculator

Add VAT to a price or take it off, at 20%, 5% or 0%.
Standard rate 20%Rates checked 18 October 2026
By the ComputeNow team, checked against GOV.UK and HMRC[Sources (1)](#sources)[How we calculate](https://computenow.co.uk/methodology/)

The price without VAT is
£100.00
The VAT included is £20.00.

## How it adds up

| Item | Amount |
| --- | --- |
| Price including VAT | £120.00 |
| VAT at 20% | £20.00 |
| Price without VAT | £100.00 |

This is an estimate, not financial advice.
[The price without VAT is £100.00 Breakdown](#result)

## How to work out VAT

To take 20% VAT off a price, divide it by 1.2. To add 20% VAT, multiply by 1.2.
For the 5% reduced rate, divide or multiply by 1.05 instead. A common mistake is taking 20% off a VAT-inclusive price: on £120 that gives £96, not the correct £100.

## Common questions

### How do I add VAT to a price?

Multiply by 1.2. £100 plus VAT at 20% is £120.00.

### How do I take VAT off a price?

Divide by 1.2. A price of £120 including VAT is £100.00 before VAT, so the VAT is £20.00. Taking off 20% of £120 would be wrong.

### What are the UK VAT rates?

20% standard rate, 5% reduced rate (for example household gas) and 0% zero rate (for example most food and children’s clothes). Household electricity in Great Britain is temporarily zero-rated from 1 October 2026 to 31 March 2027; in Northern Ireland it stays at 5%.

## Related calculators

[Income Tax calculator Your tax band by band](https://computenow.co.uk/income-tax-calculator/)[Budget calculator Plan your monthly spending](https://computenow.co.uk/budget-calculator/)[Take-home pay calculator Your pay after Income Tax and NI](https://computenow.co.uk/take-home-pay/)

## Guides and help

### Official services and free advice

[Register for VAT GOV.UK: when a business must register](https://www.gov.uk/vat-registration)

## Sources

Each source was last checked on 18 October 2026.

- [GOV.UK: VAT rates](https://www.gov.uk/vat-rates)
These results are an estimate, not financial advice. They use the 2026/27 rates in force on 24 October 2026 and the inputs shown, so your actual tax, pay or costs may differ. Before making a decision about your money, check the figures with HMRC or your provider, or speak to a regulated financial adviser. Free, impartial guidance is available from MoneyHelper.
This page explains the rules using the 2026/27 rates in force on 24 October 2026. It is general information, not financial advice. For decisions about your own money, speak to a regulated financial adviser, or get free, impartial guidance from MoneyHelper.