VAT Calculator (UK)
Work out net, VAT and gross in seconds. Built for UK invoices, quotes and materials with standard, reduced, zero and custom rates.
Calculator
Choose whether you're adding VAT to a net amount or removing VAT from a gross amount, then select the appropriate UK VAT rate.
VAT inputs
Results
Figures are rounded to the nearest penny. Always confirm the correct VAT treatment for your goods or services with HMRC or your accountant.
How This Calculator Works
What it does
This calculator converts between net and gross prices using UK VAT rates. It's useful for pricing jobs, checking supplier invoices, preparing quotes and verifying invoice totals.
How the calculation works
When adding VAT, the VAT amount is calculated by multiplying the net amount by the selected VAT rate. The gross amount is then calculated by adding the VAT to the net amount.
When removing VAT, the net amount is calculated by dividing the gross amount by (1 + the VAT rate). The VAT amount is the difference between the gross and net amounts.
Formula
Adding VAT
- VAT = Net × VAT Rate
- Gross = Net + VAT
Removing VAT
- Net = Gross ÷ (1 + VAT Rate)
- VAT = Gross − Net
Why it matters
Correct VAT calculations help ensure your quotes and invoices are accurate, reduce the risk of pricing mistakes, and make bookkeeping and tax reporting much easier.
Related Tools
Frequently asked questions
Straight answers about this calculator and how UK trades use the figures day to day.
What is the UK standard VAT rate?
The standard rate is 20%. Some goods and services use the reduced 5% rate or are zero-rated at 0%. Always confirm the rate that applies to your supply.
Should I add VAT or remove VAT?
Add VAT when your figure is net (before tax). Remove VAT when the figure already includes VAT and you need the net and VAT split.
Does zero-rated mean no VAT registration?
No. Zero-rated supplies still sit on a VAT return if you are registered. The VAT amount is £0 at a 0% rate.
Can I use a custom VAT rate?
Yes. Choose Custom Rate and enter the rate you need. Most day-to-day trade work uses 20%.
Are results suitable for filing a VAT return?
This tool is a quick estimator. Use your accounting records and HMRC rules for returns, and speak to an accountant if you are unsure.
How do I show VAT on a professional quote?
Total Tradesmen can produce branded quotes and invoices with clear net, VAT and gross totals for your customers.
Need VAT-Ready Quotes And Invoices?
Create professional branded paperwork in Total Tradesmen: jobs, quotes and invoices in one place.
Start Free Trial