VAT calculator

Add or remove VAT, work back from a VAT amount, total a bill with mixed rates, and check if you must register — for the UK, UAE, Saudi Arabia, Oman and Bahrain. Free, no sign-up.

£
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20% standard · 5% reduced (e.g. home energy, child car seats) · 0% zero-rated (most food, children’s clothes, books).

Net amount (excl. VAT)
£100.00
Net (excl. VAT)£100.00
VAT 20% standard£20.00
Gross (incl. VAT)£120.00
VAT fraction1/6 of the gross price
Rounded to 2 decimals.

What is VAT?

VAT (Value Added Tax) is a tax on spending. It is added to the price of most goods and services at each step from maker to shop to customer, and the final customer pays it in the price.

A VAT-registered business charges VAT on its sales (output VAT) and pays VAT on its purchases (input VAT). It sends the tax authority the difference. So each business only pays tax on the value it adds, and the full tax lands on the end customer.

💡 Example: a shop buys a kettle for £50 + £10 VAT and sells it for £100 + £20 VAT. It pays HMRC £20 − £10 = £10. The customer has paid the full £20 of VAT.

How to use this VAT calculator

  • Choose the country. The rates, currency and registration threshold change with it.
  • Pick what you know: the net price (without VAT), the gross price (with VAT), or only the VAT amount.
  • Type the amount and pick the VAT rate, or type any other rate in the “Other” box.
  • The net price, VAT and gross price update as you type. Copy the result, or copy a link that opens with the same numbers.
  • Use the Bill tab to add several items at different rates, and the Register? tab to check if your turnover means you must register.

UK VAT rates

RateVATCommon examples
Standard20%Most goods and services
Reduced5%Home energy (gas and electricity), children’s car seats, some energy-saving products
Zero0%Most food, children’s clothes and shoes, books and newspapers
ExemptNo VATInsurance, most financial services, education, health services, postage stamps

Check an item’s rate on GOV.UK (“VAT rates on different goods and services”).

Zero-rated and exempt are not the same

Zero-rated sales are taxable at 0%. They count towards the registration threshold, and you can reclaim the VAT you paid on what you bought to make them.

Exempt sales are outside VAT altogether. They do not count towards the threshold, and you usually cannot reclaim the VAT on purchases used for them.

When do you need to register for VAT in the UK?

  • You must register when your VAT-taxable turnover goes over £90,000 in any rolling 12 months.
  • You must also register if you expect to go over £90,000 in the next 30 days alone.
  • You can register voluntarily below the threshold, for example to reclaim VAT on purchases.
  • You can ask to deregister if your taxable turnover is expected to fall below £88,000.
  • Registered businesses keep digital records and file VAT returns, usually every quarter, with Making Tax Digital software.

VAT in the UAE, Saudi Arabia, Oman and Bahrain

CountryStandard rateVAT sinceMust register over (12 months)
UAE5%1 Jan 2018AED 375,000
Saudi Arabia15%1 Jan 2018 (15% since 1 Jul 2020)SAR 375,000
Oman5%16 Apr 2021OMR 38,500
Bahrain10%1 Jan 2019 (10% since 1 Jan 2022)BHD 37,500

Each country also has a 0% rate for some supplies, such as exports. Check the details with the country’s tax authority.

The most common VAT mistake

To take VAT out of a price, do not subtract 20%. £120 minus 20% is £96, which is wrong. The VAT was added to the net price, not taken from the gross, so divide instead: £120 ÷ 1.2 = £100, and the VAT is £20. This calculator does that for you.

Adding VAT

VAT = Net price × Rate ÷ 100. Gross = Net + VAT.

£100 × 20% = £20 → £120

Removing VAT

Net = Gross × 100 ÷ (100 + Rate). VAT = Gross − Net.

£120 × 100 ÷ 120 = £100 → VAT £20

VAT fraction

The share of a VAT-inclusive price that is VAT: Rate ÷ (100 + Rate). At 20% it is 1/6, at 5% it is 1/21.

£120 ÷ 6 = £20 VAT

From the VAT amount

Net = VAT × 100 ÷ Rate. Gross = Net + VAT.

£20 VAT at 20% → net £100, gross £120

Rates and thresholds as of October 2026. Always verify with the tax authority: GOV.UK (UK), FTA (UAE), ZATCA (Saudi Arabia), Oman Tax Authority, NBR (Bahrain).

Billing in India? Billman does GST on every bill

Billman is billing software for Indian shops: GST invoices, CGST/SGST/IGST, e-way bills and GSTR-1 — automatically, even offline.

Questions

VAT calculator (UK & Gulf) FAQ

How do I add VAT to a price?

Multiply the net price by the VAT rate and divide by 100, then add it on. For £100 at 20%, VAT is £20 and the gross price is £120.

How do I remove VAT from a price?

Divide the VAT-inclusive price by (100 + rate) and multiply by 100. For £120 including 20% VAT, the net price is £100 and the VAT is £20. A shortcut at 20% is to divide the gross price by 6 to get the VAT.

What are the UK VAT rates?

The standard rate is 20%. The reduced rate is 5%, for things like home energy and children’s car seats. The zero rate, 0%, covers most food, children’s clothes and books. Zero-rated goods are still taxable at 0%, while exempt goods are outside VAT altogether.

When must I register for VAT in the UK?

When your VAT-taxable turnover goes over £90,000 in any rolling 12 months, or you expect it to go over £90,000 in the next 30 days alone. You can ask to deregister if it is expected to fall below £88,000.

What are the VAT rates and thresholds in the Gulf?

UAE: 5%, mandatory registration over AED 375,000 a year. Saudi Arabia: 15%, over SAR 375,000. Oman: 5%, over OMR 38,500. Bahrain: 10%, over BHD 37,500. Each country also has a 0% rate for some supplies.

How do I work out the price when I only know the VAT?

Divide the VAT by the rate and multiply by 100 to get the net price, then add the VAT for the gross. £20 of VAT at 20% means a net price of £100 and a gross of £120.

Why can’t I just take 20% off to remove VAT?

Because VAT was added to the net price, not taken from the gross. £120 minus 20% is £96, but the real net price is £120 ÷ 1.2 = £100. Divide by (1 + rate ÷ 100) instead.

What is the difference between zero-rated and exempt?

Zero-rated sales are taxable at 0%: they count towards the registration threshold and you can reclaim VAT on related purchases. Exempt sales are outside VAT: they do not count towards the threshold and you usually cannot reclaim the VAT on related purchases.