VAT Calculator

100 plus 20% VAT is 120 (VAT 20).

How it works

• Multiplied the net amount by the rate to find the VAT.
• Derived the remaining component by subtraction so net, VAT and gross always reconcile.
• Rounded half-up to 2 decimal place(s); the rule is documented on this page.

VAT = 100 × 20/100 = 20; gross = 100 + 20 = 120

• One rate is applied to one amount; jurisdiction rules, exemptions and thresholds are outside this tool.
• This is an estimate for information only and is not tax or financial advice.

Methodology

1. Adding VAT: compute the tax as net × rate/100, then add it to the net.
2. Removing VAT: divide the gross by (1 + rate/100) to recover the net, then subtract to recover the tax.
3. Round every monetary value half-up to the selected decimal places so net, VAT and gross reconcile.

Usage

1. Choose whether to add VAT to a net amount or remove VAT from a gross amount.
2. Enter the amount and the VAT rate as a percentage.
3. Read the net, VAT and gross values together with the formula used.

Examples

These are examples, not current values: they use fixed inputs, while the interactive tool computes live results in your browser.

Add 20% VAT

{
  "amount": 100,
  "rate": 20,
  "mode": "add"
}

Remove 20% VAT

{
  "amount": 120,
  "rate": 20,
  "mode": "remove"
}

Add 5% VAT with rounding

{
  "amount": 99.99,
  "rate": 5,
  "mode": "add"
}

Limitations

Stated assumptions

One user-supplied rate applies to the whole amount, there are no exemptions, and the result is rounded half-up to the chosen decimals. VAT rules are jurisdiction-specific, so this page deliberately does not apply any country's schedule and should not be relied on for a return or an invoice without checking your own rules.