Value Added Tax (VAT) appears on nearly every B2B invoice in Europe and the UK. The TetraKits VAT calculator shows net price, VAT amount, and gross total — whether you are adding tax to a quote or extracting it from a receipt.
What is VAT?
VAT is a consumption tax charged at each stage of production and distribution. Businesses collect VAT on sales and reclaim VAT on purchases. For pricing, the key formulas are:
- VAT = net × (rate ÷ 100)
- Gross = net × (1 + rate ÷ 100)
- Net from gross = gross ÷ (1 + rate ÷ 100)
Add vs remove VAT
Add VAT: You have a net (pre-tax) price. Enter it, set the rate, read gross and VAT.
Remove VAT: You have a tax-inclusive total from a receipt. Enter it, set the rate, read net and VAT extracted.
Example: £100 net + 20% VAT → £20 VAT, £120 gross. Reverse: £120 gross ÷ 1.20 = £100 net.
Common VAT rates
| Country | Standard rate |
|---|---|
| United Kingdom | 20% |
| Germany | 19% |
| Netherlands / Belgium | 21% |
| Reduced rates | 5–10% (varies by product) |
For APAC tax, use the GST calculator.
FAQ
How do I add 20% VAT?
Net × 1.20 = gross. VAT = gross − net.
How do I remove VAT from a total?
Net = gross ÷ (1 + rate/100).
Is VAT the same as sales tax?
Similar consumption tax; VAT is standard in Europe/UK and shown separately on invoices.
Is this calculator free?
Yes. Unlimited, browser-based, no signup.


