How to use this tool
- Choose whether you are adding tax to a price or removing it from a total.
- Pick a preset (UK VAT, India GST or a US state) or type your own rate.
- Read the net price, tax amount and total. For GST the CGST/SGST split is shown.
Which rate applies
Most goods and services in the UK are standard-rated at 20%. The reduced 5% rate covers things like domestic energy and children's car seats, and zero-rated items include most food and children's clothing. HMRC lists the rate for each type of product.
On an invoice
A VAT invoice should show the net price, the VAT rate, the VAT amount and the total, along with your VAT registration number.
Frequently asked questions
How do I add 20% VAT?
Multiply the net price by 1.2.
What is VAT on £100?
£20 at the standard rate, making £120.
When must a business charge VAT?
Once it registers for VAT, which is required when taxable turnover passes the HMRC threshold.
Need more detail? See the full Sales Tax, VAT & GST Calculator guide.
Sources and references
- GOV.UK: VAT rates
- GST Council of India: official rate decisions
- CBIC tax information portal: GST notifications
- Tax Foundation: State and local sales tax rates