UK VAT Calculator
Less tax maths. More clarity.
Calculate VAT in seconds with a simple UK VAT calculator. Understand your results with practical guides, worked examples and information based on current HMRC guidance.
Free to use · No account needed · Clear formulas
Illustrative estimate. Check the rate and scheme eligibility for your transaction. No amounts are sent by this calculator.
Start with the calculation you need.
Percentage Calculator: Amounts and Increases
Find a percentage of an amount and the total after adding that percentage.
Explore →Interactive toolProfit Margin Calculator: Margin and Markup
See gross profit, margin and markup from selling price and cost.
Explore →Interactive toolReverse VAT Calculator: Find the Net Price
Extract the net price and included VAT from a VAT-inclusive amount.
Explore →Interactive toolVAT Calculator UK: Add or Remove VAT
Add or remove VAT at 20%, 5%, 0% or a custom rate, with net, VAT and gross totals.
Explore →Interactive toolVAT Flat Rate Scheme Calculator
Estimate a scheme payment using VAT-inclusive turnover and your applicable flat rate.
Explore →Interactive toolVAT Invoice Calculator: Mixed-Rate Line Totals
Add invoice lines at different VAT rates and see net, VAT and gross totals.
Explore →Interactive toolVAT Margin Scheme Calculator: Second-Hand Goods
Estimate VAT on a qualifying positive margin at the standard rate.
Explore →Interactive toolVAT Registration Threshold Calculator UK
Compare rolling taxable turnover with £90,000 and understand what the result leaves out.
Explore →One price. Three parts.
Move the rate slider to see how VAT changes a £100 net price.
£100 + £20 VAT = £120 total
This slider explains the arithmetic. It does not determine the legal rate for your sale.
Learn the essentials of UK VAT.
What Is VAT? A Practical UK Introduction
Understand net prices, output VAT, input VAT and the role of a VAT return.
Read the guide → VAT essentialsUK VAT Rates: 20%, 5% and 0% Explained
Compare the headline rates and check the treatment of a specific supply.
Read the guide → VAT essentialsHow to Calculate VAT: Formulas and Worked Examples
Learn the arithmetic for adding VAT and extracting it from a total.
Read the guide → VAT essentialsVAT Registration: Thresholds, Timing and Next Steps
Understand the two main turnover tests and what to prepare before registering.
Read the guide → VAT essentialsZero-Rated, Exempt and Outside-Scope VAT
Learn why three transactions with no VAT added can still have different treatment.
Read the guide → VAT essentialsHow to Use the VAT Calculators: A Step-by-Step Guide
Choose the correct tool, enter the right figures and understand the results.
Read the guide →How to Use This VAT Calculator
Our free UK VAT calculator works three ways. Add VAT: enter a net amount and it adds 20% (or 5%) to give the gross price. Remove VAT: enter a VAT-inclusive price and it strips out the VAT to show the net amount. Reverse check: enter either figure to verify a supplier's invoice in seconds. Every result shows the net amount, the VAT amount and the gross total separately, so you always know exactly what goes where on your records.
UK VAT Rates Explained
The UK has three VAT rates. Use the right one — charging the wrong rate is one of the most common small-business VAT mistakes.
| Rate | Applies to | Example |
|---|---|---|
| 20% standard | Most goods and services | £100 net → £20 VAT → £120 gross |
| 5% reduced | Home energy, child car seats, mobility aids | £100 net → £5 VAT → £105 gross |
| 0% zero-rated | Most food, children's clothes, books | £100 net → £0 VAT → £100 gross |
Some supplies are exempt (insurance, finance, health services) — no VAT is charged and you generally cannot reclaim VAT on related costs. Zero-rated is different from exempt: with zero-rated sales you charge 0% VAT but can still reclaim VAT on your business purchases.
VAT Calculation Worked Examples
Example 1 — adding VAT: A designer quotes £1,000 + VAT for a project. VAT at 20% = £1,000 × 0.20 = £200. The client pays £1,200.
Example 2 — removing VAT: A supplier invoice shows £2,400 including VAT at 20%. Net amount = £2,400 ÷ 1.20 = £2,000. VAT = £400.
Example 3 — quick check: 20% VAT is exactly one-sixth of a VAT-inclusive price. On a £600 invoice, VAT = £600 ÷ 6 = £100, net = £500.
When Do You Need to Register for VAT?
You must register for VAT when your VAT-taxable turnover exceeds £90,000 in any rolling 12-month period (2026/27 threshold). You can also register voluntarily below the threshold — useful if your customers are VAT-registered businesses and you want to reclaim VAT on your costs. Read our full guide: Can a Sole Trader Claim VAT Back?. Filing your return? See what goes in each box.
Frequently Asked Questions
How do I calculate 20% VAT on a price?
Multiply the net price by 0.20 for the VAT amount, then add it to the net price. £250 net → £50 VAT → £300 gross.
How do I take VAT off a VAT-inclusive price?
Divide by 1.20. A £1,200 invoice includes £200 VAT and £1,000 net.
What is the current UK VAT rate?
The standard rate is 20%, the reduced rate is 5% and the zero rate is 0%. The VAT registration threshold is £90,000 of taxable turnover for 2026/27.
Is this VAT calculator accurate for HMRC returns?
It is a guide for quick estimates. Always confirm figures in MTD-compatible software before submitting a VAT return, and keep valid VAT invoices for everything you reclaim.