How it works
Add VAT to a net amount or remove it from a gross amount using the rate that applies to you — arithmetic for any rate.
Choose the direction: net amount plus VAT gives the VAT charge and the gross total; gross amount gives the net amount and the VAT extracted. You enter the rate yourself, because VAT rates — including reduced and special rates — depend on the country, the goods or service and the date, and they change. The calculator performs the arithmetic only; it does not decide which rate or treatment applies to your transaction.
Formula
Net → gross: VAT = net × rate ÷ 100 and gross = net + VAT. Gross → net: net = gross ÷ (1 + rate ÷ 100) and VAT = gross − net.
net- Amount before VAT (currency)
rate- VAT rate you enter (%)
VAT- VAT amount (currency)
gross- Amount including VAT (currency)
Examples
- 100 net at 20%Direction net → gross · amount 100 · rate 20%VAT 20 · gross 120
- 120 gross at 20%Direction gross → net · amount 120 · rate 20%Net 100 · VAT 20
Frequently asked questions
Why are there no country presets?
VAT rates change and many countries apply reduced or special rates to specific goods and services. Shipping guessed rates would risk wrong results, so we deliberately do not embed any rate data — enter the rate that applies to you.
What about reduced or zero rates?
The arithmetic works with any rate from 0% upward. If a reduced or zero rate applies to your case, enter it directly; exemptions mean no VAT is charged, so use 0%.
Do cross-border rules affect this?
They can. Place of supply, reverse-charge and import rules differ between countries; this page only does net/gross arithmetic and does not determine tax liability.
Is this tax advice?
No. It is a calculator. For which rate applies to a specific transaction, consult the tax authority or a qualified adviser.
How to read the result
Use net → gross when you have a price before tax and need the tax-inclusive total. Use gross → net when you have a tax-inclusive amount and need to extract the tax share.
Limitations
Arithmetic only; no rate data, no liability determination, no invoicing rules. Rounding is to two decimals.
Source: Elementary percentage arithmetic. No VAT rate data is embedded; the rate is always user-supplied.