How to use this calculator
- Enter or choose amount.
- Enter or choose i want to.
- Enter or choose vAT rate.
- The vAT amount updates as you type. Use Copy result or Share to keep it.
Method
Add: Gross = Net × (1 + rate ÷ 100). Remove: Net = Gross ÷ (1 + rate ÷ 100). VAT = Gross − Net
- Net
- price before VAT
- Gross
- price including VAT
- rate
- VAT rate in percent
Worked example
- VAT = 100 × 20 ÷ 100 = 20.
- Gross = 100 + 20 = 120.
- Going back: 120 ÷ 1.20 = 100, not 120 − 20% = 96.
At 20%, a net price of 100 carries 20 of VAT, for 120 in total.
What the result means
When you remove VAT from a gross price, the VAT is a smaller share of the gross than the rate itself: at 20% it is one sixth (16.67%) of the VAT-inclusive price.
Assumptions and limits
- A single VAT rate applies to the whole amount.
- Rates, exemptions and reduced rates differ by country and by product; check your tax authority for the rate that applies.
- Rounding rules for invoices (per line or per invoice) can change the total by a cent or two.
Questions
Why can’t I just subtract 20% to remove VAT?
Because the VAT was 20% of the net price, not of the gross. From a gross of 120, 20% is 24, which would leave 96 instead of the correct 100. Divide by 1.20 instead.
What is the VAT fraction?
It is the share of a VAT-inclusive price that is VAT: rate ÷ (100 + rate). At 20% that is 20/120 = 1/6; at 5% it is 5/105 = 1/21.