VAT Calculator
Add VAT to an amount, or take it out of a tax-inclusive amount, at the rate you enter.
Rounding and decimal places
Your result
Enter an amount and a tax rate to see the result.
How to use it
- Enter the amount and the tax rate.
- Choose whether the amount is before tax or already includes it.
- Read the total and the tax amount, then copy the result.
Examples
- Add 15% to 10001000 + 15% 1150.00
- Take 15% out of 11501150 ÷ 1.15 1000.00
- Take 5% out of 100100 ÷ 1.05 95.24
Tool details and privacy
Enter an amount and a tax rate to get the total including tax, or the amount before tax. It works for VAT and for any tax charged as a percentage.
Adding: tax = amount × rate ÷ 100. Taking tax out of an inclusive amount: amount before tax = inclusive amount ÷ (1 + rate ÷ 100).
Options
- The amount can be before tax or tax-inclusive.
- Decimal places: 0, 2 or 3.
- Rounding: nearest, half to even, always down, or always up.
Limits
- The rate is from 0 to 100, with up to four decimal places.
- The amount must be above zero, with up to 12 digits before the decimal point.
- The calculator only does the arithmetic. It does not tell you which rate applies in your country or what is taxable.
Privacy
The numbers are calculated in your browser and are not sent to any server.
Questions
How do I calculate 15% VAT?
Multiply the amount by 0.15. For 1000 the VAT is 150 and the total is 1150.
How do I take VAT out of a tax-inclusive amount?
Divide the inclusive amount by 1.15 when the rate is 15% to get the amount before tax. The difference is the VAT. For example, 1150 ÷ 1.15 = 1000, so the VAT is 150.
Does the calculator assume a country rate?
No. You type the rate yourself, such as 15, 5 or 20.
Why is my result slightly different from my invoice?
The rounding rule or the number of decimal places differs. Change them under “Rounding and decimal places” to match your invoice.