VAT Calculator
Add or remove VAT from any amount at 20%, 5%, 0% or a custom rate.
Free · No sign-up · UK rates
Free UK VAT Calculators & Guides
Calculate VAT quickly, understand UK VAT and find practical guides for everyday VAT questions. Free online tools designed for individuals, freelancers and small businesses.
VAT calculator
- Net (excl. VAT)
- £0.00
- VAT
- £0.00
- Gross (incl. VAT)
- £0.00
Enter an amount to see the working.
Results are for guidance only. VAT rules and rates can change — check official HMRC guidance before filing or making compliance decisions.
Popular VAT tools
Each calculator does one job well and shows its working, so you can check the numbers yourself.
Reverse VAT Calculator
Start from a VAT-inclusive price and find the net amount and VAT inside it.
VAT Percentage Calculator
Work out the VAT on a net amount at any percentage.
VAT Invoice Calculator
Add invoice lines, mix VAT rates and get the VAT and invoice total.
VAT Margin Calculator
See your profit margin with VAT handled correctly on cost and price.
VAT Registration Calculator
Check your rolling 12-month turnover against the VAT threshold.
VAT guides by topic
Plain-English answers, worked examples and links to the official HMRC source.
Current UK VAT rates
Last reviewed 26 September 2026 against GOV.UK
20%
Standard rate
Most goods and services, unless they are specifically listed as reduced, zero-rated or exempt.
5%
Reduced rate
A short list including domestic gas, children's car seats and mobility aids for older people.
0%
Zero rate
Most food, books, children's clothes and public transport such as train tickets.
VAT registration threshold: £90,000 taxable turnover in any rolling 12 months. Official source: GOV.UK
How WaqarWeb helps
01
Accurate calculators
Tested against known examples and worked in whole pence, so totals always add up.
02
Working shown
Every result shows the formula, so you can check it or explain it to a client.
03
Plain-English guides
Written for business owners, not accountants, with links to the official HMRC source.
04
Free, no sign-up
No account, no pop-ups and nothing to install. It works on your phone.
Latest VAT guides
How to Correct a VAT Invoice (Credit Notes Explained)
Sent a VAT invoice with the wrong amount, rate or details? How to fix it properly with a credit note and a new invoice, what a VAT credit note must show, and how corrections affect your VAT return.
VAT Deregistration Explained (UK Guide)
When you can or must cancel your VAT registration, the deregistration threshold, how to apply to HMRC, the 30-day deadline, and what happens to your stock, assets and final VAT return.
How to Charge VAT to Customers (UK Guide)
Just registered for VAT? When to start charging, which rate to use, how to show VAT on prices and invoices, the tax point rules, and what to do with existing customers and contracts.
Need to take VAT off a price?
Switch the calculator to Remove VAT — it divides by 1.2 instead of subtracting 20%, which is the common mistake.