VAT Calculator UK — Calculate VAT Online Easily
Add or remove UK VAT instantly at 20%, 5% or 0% — see the net, VAT and gross amounts in real time. Free, accurate, no sign-up needed.
Written & reviewed by Ahmad Hussain · June 2026
🇬🇧 United Kingdom VAT Calculator
Enter an amount, choose a VAT rate, and select whether to add or remove VAT.
How to Calculate VAT Using a VAT Calculation Calculator
Using an online calculation tool removes guesswork and reduces errors. Instead of manually applying percentage formulas, you get instant, accurate results — making everyday financial tasks like pricing, invoicing and checking receipts much easier. For the official current rates, see GOV.UK's VAT rates guide.
- 1
Enter your amount
Type in the figure you're working with — this can be a net price (before VAT) or a gross price (including VAT).
- 2
Choose the VAT rate
Select 20% (standard), 5% (reduced) or 0% (zero-rated) depending on the goods or service.
- 3
Pick add or remove
"Add VAT" calculates VAT on top of your amount. "Remove VAT" works backwards from a VAT-inclusive price.
- 4
Read your results
The net, VAT and gross amounts update instantly — ready to use on an invoice, quote, or receipt.
Why Use a VAT Calculator UK Online?
Value Added Tax plays a significant role in everyday transactions across the United Kingdom — from retail purchases to professional services, VAT affects pricing structures and final costs. Understanding how it's applied helps people make informed financial decisions and avoid confusion when comparing prices.
For small businesses and self-employed professionals, accurate VAT figures are essential. An incorrect calculation can throw off invoices, cash flow projections, and compliance records — an online calculator removes that risk by applying the correct formula consistently every time.
Invoicing & Quotes
Quickly work out VAT-inclusive or exclusive prices when preparing invoices or customer quotes.
Checking Bills
Verify supplier invoices and receipts to make sure the VAT charged matches the correct rate.
Learning Tool
Students and accounting learners get instant feedback on how percentages affect totals.
Works Anywhere
Use it on mobile, tablet or desktop — ideal for freelancers and remote workers on the go.
Getting the Most From a Digital VAT Tool
Manual VAT calculations can be slow and repetitive, while a digital tool delivers results instantly with consistent accuracy. Financial planning often works best when several tools are combined — pairing a VAT calculator with invoice templates and budgeting resources helps you manage income and expenses more effectively in one workflow.
A clear, simple interface is just as important as accuracy — it helps you understand the output at a glance and reduces the chance of mistakes when the numbers feed into a bigger financial decision.
VAT Calculator UK — Frequently Asked Questions
Is this VAT calculator UK free to use?
Yes. Our VAT calculator UK is completely free, with no sign-up and unlimited calculations.
What are the current UK VAT rates?
The UK has three VAT rates: 20% standard rate for most goods and services, 5% reduced rate for things like domestic energy and children's car seats, and 0% zero rate for most food, books and children's clothes.
How do I remove VAT from a price?
Select "Remove VAT", enter the VAT-inclusive (gross) amount, and choose the applicable rate. The calculator divides the gross amount by 1 plus the VAT rate to give you the net amount and the VAT portion separately.
Is this VAT calculator UK suitable for business use?
Yes. It's useful for checking invoices, preparing quotes, and verifying receipts. For official VAT registration, returns and compliance, always refer to HMRC guidance or a qualified accountant.
Need to Invoice a Client?
Once you've worked out your VAT figures here, drop them straight into our free UK invoice generator — HMRC-compliant and ready to download as a PDF.
Open UK Invoice Template →