VAT Calculator United Kingdom (20%)
Add or remove VAT from any GBP amount. The rate is editable, and the formulas below show the arithmetic so you can check any invoice by hand.
- Free
- No sign-up
- Nothing uploaded
- Updated for 2026
- Last reviewed September 2026
%
Standard rate in United Kingdom is 20%.
Total with VAT
£1,200.00
- Net amount
- £1,000.00
- VAT at 20%
- £200.00
- Gross amount
- £1,200.00
How to calculate VAT in United Kingdom
Add: tax = net × 0.2; gross = net × 1.2.
Remove: net = gross ÷ 1.2; tax = gross − net.
Standard rate in United Kingdom is 20%.
Questions people ask
- How do I add VAT to a price?
- Multiply the net price by 1.2. A £100 sale at 20% carries £20 of VAT and totals £120.
- How do I remove VAT from a total?
- Divide the gross amount by 1.2 to get the net, then subtract to find the tax. Dividing, not multiplying by a percentage, is the step people get wrong.
- Is the rate current?
- The page shows its last review date and the rate field is editable if yours differs.
- Which rate applies to what I sell?
- The standard rate covers most supplies, but many countries also run reduced rates, a zero rate and exemptions. Zero-rated and exempt are not the same: with a zero rate you still reclaim the VAT on your own purchases, with an exemption you do not. Check your category with HM Revenue and Customs (HMRC).
- Do I charge VAT to a customer in another country?
- Often not, but it depends on what you sell and to whom. Exported goods are commonly zero-rated, and services to a business abroad are frequently outside the scope or shifted to the buyer. The rule is specific to United Kingdom; confirm it with HM Revenue and Customs (HMRC) before you leave the tax off.
- I used the wrong rate on an invoice I already sent. What now?
- Do not reissue the same number. Raise a credit note against it and issue a fresh invoice at the right rate. If the return for that period has already gone in, tell HM Revenue and Customs (HMRC) how you are correcting it rather than waiting to be asked.
- Does this round the way my accountant does?
- It works to two decimal places and does not round line by line, which is the common convention. Some authorities specify rounding per line and others per invoice, so a difference of a unit or two on a long document is normal rather than an error.
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