VAT Calculator
Add VAT or work backward from an inclusive total with standard-rate presets, a custom rate, and the formula shown.
- Fewer clicks, keyboard friendly
- Features others lock behind paywalls
Add VAT or extract it from an inclusive total instantly — no account needed.
Your settings stay in this browserBreakdown
Calculation
100 + (100 × 20%) = 120; VAT = 20
This is a transaction breakdown, not a tax return. Check the applicable rate and invoice rounding rules.
How to use
- Choose Add VAT when your amount is before tax, or Extract VAT when the amount already includes tax.
- Select a standard-rate preset or choose Custom rate and enter the percentage that applies to the transaction.
- Enter the amount using the same currency and decimal precision as the document you are checking.
- Read the net, VAT, and gross amounts as they update, then copy the breakdown if needed.
Adding VAT and extracting VAT use different operations
To add VAT to a net amount, multiply it by 1 + rate ÷ 100. At 20%, a net price of 100 becomes 100 × 1.20 = 120, with 20 of VAT. To extract VAT from a gross amount, divide by that same multiplier: 120 ÷ 1.20 = 100 net, then subtract the net amount to get 20 VAT. Subtracting 20% directly from a tax-inclusive total would give 96, which is wrong because the 20% was originally calculated from the smaller net amount. The calculator always keeps net + VAT equal to gross before displaying the breakdown.
What the standard-rate presets mean
The presets are standard rates, not a decision about what your particular supply must use. South Korea's National Tax Service describes the ordinary taxpayer rate as 10%. The UK government lists a 20% standard VAT rate. The European Commission's current rate table lists Germany at 19%, France at 20%, Ireland at 23%, and Denmark at 25%. Each jurisdiction can have reduced, zero, exempt, regional, or industry-specific treatments, and rates can change. Confirm the applicable rate with the tax authority or a qualified adviser before issuing an invoice or filing a return.
Decimals, currency, and invoice rounding
This calculator does not attach a currency symbol because the arithmetic is the same for any currency: enter amounts in the units shown on your receipt or invoice. Results display up to two decimal places, while the calculation keeps extra precision so that the three figures remain consistent. Tax rules and accounting systems can specify a different moment for rounding — per line, per invoice, or to a smallest currency unit — so a real invoice can differ by a minor unit. Use the exact rounding policy required for your transaction when a legally binding amount is needed.
Frequently asked questions
How do I remove VAT from a price that already includes it?
Divide the tax-inclusive price by 1 + the VAT rate expressed as a decimal, then subtract the result from the inclusive price. For example, at 20%, 120 ÷ 1.20 = 100 net and 120 − 100 = 20 VAT; subtracting 20% from 120 would incorrectly give 96.
What is the VAT amount in a 10% VAT-inclusive total?
For a total that includes 10% VAT, the VAT portion is one eleventh of the total and the net amount is ten elevenths. A total of 110 therefore contains 10 VAT and 100 net, because 110 ÷ 1.10 = 100.
Can I use this VAT calculator for GST or another percentage tax?
Yes. The calculation is the same for any percentage-based tax: add tax with net × (1 + rate ÷ 100), or extract tax with gross ÷ (1 + rate ÷ 100). You must enter the rate that actually applies to your jurisdiction, product, and transaction.
Are the country rate presets always correct for every purchase?
No. The presets are standard national rates checked against official sources, but reduced, zero, exempt, regional, and sector-specific rates can apply. Confirm the rate and the invoice rounding rule with the relevant tax authority before relying on a figure for compliance.
Does this calculator send my prices or rates to a server?
No. The VAT arithmetic runs in the browser. Your chosen amount, rate, and direction are saved only in that browser so you can resume the calculation, and they are not sent to a server.
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Updated 2026-10-13