About the VAT Calculator
Tezmy's VAT Calculator works out value-added tax (VAT) or goods and services tax (GST) in both directions. Add VAT to a price before tax to get the total, or remove VAT from a price that already includes it to find the amount before tax, which is the calculation people most often get wrong. Pick your country's standard rate or type any rate, and choose your currency. It's handy for invoices, quotes, receipts and expense claims.
Updated October 2026
How to use the VAT Calculator
- 1Choose Add VAT or Remove VAT.
- 2Enter the price.
- 3Type the rate, or pick your country.
- 4Read the net amount, the VAT and the gross total.
How to add VAT
Multiply the net price (before tax) by 1 plus the rate. At 20%, 100 × 1.20 = 120. The VAT is the difference, 20. The calculator shows the net, VAT and gross amounts together.
How to remove VAT (the common mistake)
To find the price before VAT, divide by 1 plus the rate, don't subtract the percentage. At 20%, a gross price of 120 ÷ 1.20 = 100 before VAT. Taking 20% off 120 gives 96, which is wrong. This is the calculation people most often get wrong on invoices and expense claims.
Standard rates included
The calculator includes standard rates for 17 countries, including the UK (20%), Ireland (23%), Germany (19%), France (20%), India (18% GST), Pakistan (18% GST), Bangladesh (15%), the UAE (5%), Saudi Arabia (15%), Australia (10% GST) and Canada (5% GST). Many countries also have reduced rates for food, books or energy, so type a custom rate when needed, and check official sources for your exact product.
Who uses a VAT calculator?
- Freelancers and small businesses writing quotes and invoices.
- Employees filling in expense claims from receipts.
- Shoppers checking the price before tax, or claiming tax back when travelling.
- Anyone comparing prices listed with and without tax.
Net and gross in plain words
Net means the price before VAT or GST. Gross means the final price including tax. Business invoices usually show both, plus the tax amount. Shops in the UK, Europe and many other countries show gross prices to consumers, while US prices usually exclude sales tax. Sales tax is easier to check in steps. Use the Discount Calculator before you add tax, the Profit Margin Calculator to see what is left after costs, and the Percentage Calculator for any rate that is not in the standard list.
Features
- Add or remove VAT / GST
- Rates for 17 countries
- Any custom rate
- Net, tax and gross shown together
- Any currency
- Instant results
Frequently asked questions
How do I remove VAT from a price?
Divide the price including VAT by 1 plus the rate. For 20% VAT, divide by 1.2: £120 ÷ 1.2 = £100 before VAT, so the VAT is £20. Taking 20% off £120 (£96) is wrong.
How do I add VAT to a price?
Multiply by 1 plus the rate. For 20% VAT, multiply by 1.2: £100 × 1.2 = £120.
What's the difference between VAT and GST?
They work the same way: a tax added at each stage of sale. Europe, the UK, UAE and others call it VAT; India, Australia, Canada and others call it GST.
What does net and gross mean?
Net is the amount before tax. Gross is the total including tax.
Are the country rates up to date?
They're the standard rates at the time of writing. Rates can change and some goods have reduced or zero rates, so check with your tax authority.
How do I calculate 18% GST in India?
Choose India (GST) or type 18%. Add GST to a price by multiplying by 1.18, or remove it from a total by dividing by 1.18.
What is the VAT rate in the UK?
The standard UK VAT rate is 20%. Some goods have a reduced 5% rate or 0%.
Are the country rates always correct?
They are the standard rates when this page was updated. Governments change rates from time to time, so for official documents always check your tax authority's website.