Salary & Tax · GST & Sales Tax
VAT Calculator — Add or Remove VAT
Add value-added tax to a net price, or work back from a VAT-inclusive price to the net amount and the VAT inside it — at any rate (UK 20 %, UAE 5 %, EU rates and more), for one amount or a whole invoice.
A ready-made version of the GST Calculator — Add or Remove GST.
Your inputs
Quick start — try a typical case
£ 10 thousand
Your result Live
Price Including VAT
£12,000
£10,000 + £2,000 VAT at 20%
- VAT Amount
- £2,000
- Price Before VAT
- £10,000
- Price Including VAT
- £12,000
- Before VAT · 83%£10,000
- VAT · 17%£2,000
How this is calculated
Add tax: Total = Price × (1 + r) · Remove tax: Price = Total ÷ (1 + r), Tax = Total − Price
- r
- Tax rate as a decimal (18 % → 0.18)
- CGST / SGST
- Within a state, GST is split equally between the Centre and the state; between states it's charged as IGST
When a price excludes tax, multiply by (1 + rate). When it already includes tax, divide by (1 + rate) to get the base — taking 18 % off the total would be wrong, because the tax was charged on the base, not the total. In India, GST within a state is split equally into CGST and SGST; on interstate sales the whole amount is IGST.
Assumptions & sources
- Tax charged on the discounted value; no cess, reverse charge or composition scheme.
- Rates as entered — the correct GST rate depends on the item's HSN/SAC classification.
- 1GST rate schedules for goods and services (notifications effective 22 September 2025) — Central Board of Indirect Taxes and Customs
- 2Goods and Services Tax — overview — GST Council
Calculator ID TAX-GST-001/vat · version 1.0.0
Common questions
How do I work out VAT from a VAT-inclusive price?
Divide the price by (1 + rate) to get the net amount; the difference is the VAT. At 20 %, £120 includes £20 of VAT — not £24.
What VAT rate should I use?
It depends on the country and the item: the UK standard rate is 20 %, the UAE 5 %, and EU standard rates range from about 17 % to 27 %. Many countries have reduced rates for food, books or energy.