Ledgerly ProBookkeeping That Thinks
Free · UK VAT

VAT Calculator UK

Add VAT to a net price or remove VAT from a gross price in seconds — at the 20%, 5% or 0% UK rate. Free, instant, no sign-up.

£

Standard 20% · reduced 5% · zero 0%. For guidance only — not tax advice.

Net (excl. VAT)
£100.00
VAT (20%)
£20.00
Gross (incl. VAT)
£120.00
Net + VAT · 20% rate

Not sure if you need to charge VAT? You must register once turnover passes £90,000. Check with our sole trader tax calculator.

VAT-ready bookkeeping, without the headache

LedgerlyPro tracks VAT on every invoice and expense and keeps Making Tax Digital-ready VAT figures, so you're always prepared for your return.

Start your free 30-day trial

No card required · Cancel anytime

How to calculate VAT in the UK

VAT (Value Added Tax) is a tax on most goods and services in the UK. If you're VAT-registered you charge it on your sales (output VAT) and reclaim it on your purchases (input VAT). The maths is simple once you know whether you're working from a net or a gross figure.

Adding VAT (net → gross)

Multiply the net amount by 1 + the VAT rate. At 20%: £100 × 1.20 = £120 (£20 VAT).

Removing VAT (gross → net)

Divide the gross amount by 1 + the VAT rate. At 20%: £120 ÷ 1.20 = £100 net, leaving £20 VAT.

UK VAT rates

  • Standard rate — 20% (most goods and services)
  • Reduced rate — 5% (e.g. domestic fuel and power, children's car seats)
  • Zero rate — 0% (e.g. most food, books, children's clothes)
This calculator is for general guidance only and uses standard VAT accounting. It doesn't cover the Flat Rate Scheme, margin schemes, exempt or out-of-scope supplies. Always confirm with HMRC or a qualified accountant — this is not tax advice.

Frequently asked questions

How do I add VAT to a price?

Multiply the net (VAT-exclusive) amount by the VAT rate and add it on. For standard-rate 20% VAT: net × 1.20 = gross. For example, £100 net becomes £120 gross (£20 VAT). Use the 'Add VAT' mode above to do it instantly.

How do I remove VAT from a price?

Divide the gross (VAT-inclusive) amount by 1 plus the VAT rate. For 20% VAT: gross ÷ 1.20 = net. For example, £120 gross is £100 net with £20 VAT. Use the 'Remove VAT' mode above.

What are the UK VAT rates?

There are three: the standard rate of 20% (most goods and services), the reduced rate of 5% (e.g. domestic energy, children's car seats) and the zero rate of 0% (e.g. most food, children's clothes, books). Some items are exempt or outside the scope of VAT entirely.

When do I need to register for VAT?

You must register once your VAT-taxable turnover exceeds £90,000 over any rolling 12-month period, or if you expect to exceed it within the next 30 days. You can also register voluntarily below the threshold.

What is the VAT Flat Rate Scheme?

It's a simplified scheme for smaller businesses where you pay a fixed percentage of your VAT-inclusive turnover to HMRC instead of working out VAT on every transaction. This calculator shows standard VAT, not Flat Rate amounts — check HMRC or your accountant for your sector's flat rate.

More tools: the sole trader tax calculator, or read VAT registration explained and how VAT works for sole traders.

Need VAT-ready software? See MTD-compliant bookkeeping software.

Run your books with more confidence.

Set up in minutes. No card needed. Takes under 60 seconds.

Download LedgerlyPro on the App Store
Trustpilot
Ledgerly ProBookkeeping That Thinks
© 2026 LedgerlyPro. All rights reserved.