Calculate VAT-inclusive and VAT-exclusive prices with configurable rates for EU, UK, and international VAT jurisdictions.
VAT calculators answer two questions that look alike but are not the same: what a net price becomes once tax is added, and what tax sits inside a price that already includes it. Enter an amount, pick or type a rate, and the tool returns the matching value in either direction, with presets for common EU, UK, and international jurisdictions. The result most users get wrong: a GBP 120 price at 20% VAT contains GBP 20 of tax, not GBP 24. Extracting tax means dividing by 1.20, not multiplying by 0.20.
A concrete input and expected output from the current implementation.
Input
Price including VAT: GBP 120.00 | Rate: 20% (UK standard)
Expected output
Net price (exclusive of VAT): GBP 100.00 | VAT amount: GBP 20.00
An inclusive price at 20% is the net price times 1.20, so GBP 120 divided by 1.20 recovers the GBP 100 net, and the GBP 20 VAT is the difference. Taking 20% of the gross instead would overstate the tax by GBP 4.
Adding VAT multiplies the net amount by (1 + rate/100); removing it divides the gross by the same multiplier, with the VAT as the difference. Whichever direction you enter, the tool reports the other price and the VAT amount, and shows both figures in the normal two-decimal currency format.
The tool ships with standard rates for common EU, UK, and international jurisdictions, and every rate is editable, so a preset is a starting point rather than a ruling. The legally applicable rate depends on the country, the goods or service, and the buyer - standard, reduced, and zero-rated bands coexist - so confirm the current official rate before relying on a figure.
Because the GBP 120 already contains the tax. Adding VAT charges 20% on the net price, so GBP 100 net plus GBP 20 VAT makes GBP 120. Taking 20% of the gross instead - GBP 24 - double-counts, since the gross is itself the net plus tax. Dividing the gross by 1.20 recovers the GBP 100 net, and the GBP 20 left over is the VAT inside the total.
Treat them as a convenience, not a guarantee. Standard rates are often stable for years - the UK has been at 20% since 2011 - but governments do change them, and the rate that applies also depends on the goods and the buyer. Cross-check the figure against the current official rate for your country before invoicing.
The example and behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.
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