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VAT calculator (add or remove VAT)

Net, VAT and gross amounts at UK rates, with every step shown.

VAT calculator

The price before VAT to add VAT, or the VAT-inclusive price to take VAT out.

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What do you want to do?

VAT rate

The rate depends on what you sell. Most goods and services are at the standard rate.

Gross (incl. VAT)

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Enter an amount to see the result.

Net (excl. VAT)
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VAT
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Rate applied
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Gross (incl. VAT)
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Recent calculations

Nothing yet: copy, export or save a calculation to find it here.

How it works

Enter an amount, choose whether to add or remove VAT, and pick a rate. You get the net amount, the VAT and the gross amount, rounded to the penny, with the workings. The UK rates are built in: 20% standard, 5% reduced and 0% zero rate. For any other rate, choose 'Other rate'.

Add or remove VAT

Add VAT when you start from a price before VAT, such as a quote, to get what your customer pays. Remove VAT when you start from a VAT-inclusive price, such as a till receipt, to see the net amount and the VAT inside it.

Pick the rate

Most goods and services are standard-rated at 20%. The reduced rate of 5% covers some goods and services, such as children's car seats and home energy. The zero rate covers, for example, most food and children's clothes. Some things are exempt from VAT altogether, such as postage stamps and financial and property transactions.

Use the result

Amounts are rounded to the nearest penny, with halves rounded up. Copy the workings in one click, export the result as a CSV file or save it to Priostack.

Adding VAT: VAT = net × rate ÷ 100, then gross = net + VAT.

Removing VAT: VAT = gross × rate ÷ (100 + rate), then net = gross − VAT.

HMRC calls rate ÷ (100 + rate) the VAT fraction: 1/6 at 20% and 1/21 at 5%.

Example: taking VAT out of £2.40

This is HMRC's own example. An item sold for £2.40 including VAT at 20% contains £2.40 × 1/6 = £0.40 of VAT, so the net price is £2.00, not £2.40 less 20% (£1.92). Adding VAT works the other way: £1,250.00 net at 20% gives £250.00 of VAT and £1,500.00 gross.

Frequently asked questions

How do I add 20% VAT to a price?

Multiply the net price by 1.2. A £80.00 net price becomes £96.00 including VAT, of which £16.00 is VAT. At the reduced rate of 5%, multiply by 1.05.

How do I work out the VAT in a VAT-inclusive price?

Multiply the gross price by the VAT fraction: one-sixth at 20%, one twenty-first at 5%. £120.00 including VAT at 20% contains £20.00 of VAT, leaving £100.00 net. Taking 20% off the gross price gives the wrong answer (£96.00).

What is the difference between zero-rated and exempt?

Neither carries VAT, but a zero-rated sale is still treated as a taxable supply, including your right to reclaim the VAT on related business costs. Exempt sales sit outside that system, and VAT on costs linked to them generally cannot be reclaimed.

Why does my invoice differ by a penny?

This calculator rounds once, to the nearest penny. An invoice that works out VAT line by line can end up a penny or two apart, and so can one that rounds the total VAT down to a whole penny, which HMRC allows for invoices between businesses but not for retailers (VAT Notice 700, paragraphs 17.5 and 17.6).

When did the standard rate become 20%?

On 4 January 2011, when it rose from 17.5%. To check an older price, choose 'Other rate' and enter 17.5.

Sources

  1. GOV.UK: VAT rates (12 December 2014)
  2. HMRC: VAT guide (VAT Notice 700), paragraphs 3.5, 3.6, 7.3.1, 17.5 and 17.6 (25 June 2026)
  3. legislation.gov.uk: Value Added Tax Act 1994, section 30 (zero-rating) (4 November 2026)

This calculator gives general information, not legal, tax or accounting advice. The right rate depends on what you supply: check HMRC's guidance or ask an accountant.

Last reviewed: