UK VAT Calculator
Quickly add VAT to a net price or remove VAT from a gross price using current British VAT rates.
What this British VAT calculator does
This british vat calculator helps you work out Value Added Tax in seconds. Whether you are a freelancer, sole trader, small business owner, contractor, or simply checking a receipt, you can use it to:
- Add VAT to a net amount (price before tax)
- Remove VAT from a gross amount (price including tax)
- See the VAT value itself clearly, not just the final price
In the UK, VAT calculations are common for quoting clients, creating invoices, checking supplier bills, and forecasting cash flow. A good VAT tool saves time and reduces costly mistakes.
How to use the calculator
1) Choose a mode
Select Add VAT to net amount if your number excludes VAT. Select Remove VAT from gross amount if your number already includes VAT.
2) Enter your amount
Type the value in pounds. You can enter plain numbers like 150 or decimals like 150.75.
3) Set the VAT rate
Use the quick buttons for common UK rates (20%, 5%, 0%) or type your own rate manually.
4) Click calculate
You will instantly see:
- Net amount (excluding VAT)
- VAT amount
- Gross amount (including VAT)
UK VAT formula explained
Adding VAT
If your price excludes VAT:
- VAT amount = Net × (Rate / 100)
- Gross amount = Net + VAT amount
Example: Net £100 at 20% VAT gives £20 VAT, so gross is £120.
Removing VAT
If your price includes VAT:
- Net amount = Gross ÷ (1 + Rate / 100)
- VAT amount = Gross − Net amount
Example: Gross £120 at 20% VAT gives net £100 and VAT £20.
Current British VAT rates (general guide)
Many day-to-day calculations in the UK use one of these rates:
- 20% standard rate (most goods and services)
- 5% reduced rate (certain qualifying goods/services)
- 0% zero rate (selected essential categories)
Some goods and services may be exempt or outside the scope of VAT. Always verify specific tax treatment with HMRC guidance or a qualified accountant for compliance decisions.
Practical examples
Freelancer invoice
You quote a client £850 for work excluding VAT at 20%.
- VAT = £170
- Total invoice = £1,020
Retail receipt check
You bought an item for £59.99 including VAT at 20% and want to know pre-tax value.
- Net ≈ £49.99
- VAT ≈ £10.00
Reduced-rate service
A qualifying service is priced at £200 net at 5% VAT.
- VAT = £10
- Gross = £210
Common VAT calculation mistakes
- Applying 20% to a gross amount when trying to extract VAT (this overstates VAT)
- Using the wrong VAT category for goods/services
- Rounding too early before final totals
- Confusing exempt supplies with zero-rated supplies
- Forgetting to display VAT clearly on invoices when required
FAQ
Is this a UK VAT inclusive and exclusive calculator?
Yes. It works both ways: add VAT to net prices and remove VAT from gross prices.
Can I enter custom VAT rates?
Yes. Enter any percentage in the VAT rate field for special cases or historical checks.
Does this replace professional tax advice?
No. This is a practical calculation tool. For filing, classification, or legal questions, consult HMRC resources or a tax professional.
Final note
If you need a fast, accurate uk vat calculator for daily quoting, invoicing, or bookkeeping checks, this tool should cover most everyday needs. Bookmark it and use it whenever you need to add or remove VAT in seconds.