Reverse VAT Calculator

When this calculator helps

Use this tool whenever you are holding a VAT-inclusive total and need to separate the net amount from the VAT. The everyday case is a receipt or supplier invoice that shows only the gross figure: to record the cost correctly, or to reclaim input VAT on a business expense, you need the net and the VAT itemised. The calculator does that split in a single step at whatever rate applies.

It is a workhorse for bookkeeping across the euro area and the wider EU. Anyone reconciling expenses, preparing a VAT return, or building an invoice line from a known gross price has to work backwards from the total. Because rates differ from one member state to the next, the ability to set the rate yourself is exactly what makes a reverse calculation reliable wherever you happen to be filing.

How to read your result

From the gross price you enter, the calculator returns the net amount (the value of the goods or service before VAT) and the VAT portion (the tax on top). The two add back to the gross. In your records the net goes against the relevant expense or sales figure, and the VAT goes to your VAT account as input or output tax.

The essential point is that you divide the gross by one plus the rate, rather than simply taking the rate off the gross. At a 21% rate the gross is 121% of the net, so the net is the gross divided by 1.21. Subtracting 21% of the gross would overstate the VAT, because it applies the rate to the gross rather than to the smaller net amount on which the VAT was actually charged.

A worked example

Imagine an invoice with a gross total of €242 in a country where the standard rate is 21%. Divide €242 by 1.21 to get a net of €200. The VAT is the difference, €42. Your records then show €200 of net cost and €42 of VAT. Taking 21% of €242 directly would give €50.82 — too much — which is precisely the mistake that dividing by 1.21 avoids.

Common mistakes to avoid

Reverse-VAT errors in the EU almost always come down to the wrong rate or the wrong arithmetic. A quick check against these will keep your numbers sound.

• Subtracting the rate as a percentage of the gross instead of dividing by one plus the rate, which overstates the VAT.
• Applying another country's standard rate — a German 19% calculation will not balance a French or Hungarian invoice.
• Mixing up a standard rate with a reduced rate on items like food, books or public transport, which carry lower rates in most member states.
• Rounding the net and the VAT separately so they no longer add back to the exact gross total.

EU VAT rates and notes

VAT is harmonised in principle across the EU but not in its rates. Every member state sets its own standard rate, and these range from around 17% in Luxembourg through 19% in Germany and 20% in France up to 27% in Hungary, with most countries somewhere in the high teens to low twenties. Reduced rates, typically in the 5%–13% band, apply to defined categories such as food, books and passenger transport, and some supplies are zero-rated or exempt.

The practical consequence is that the right rate depends entirely on the country whose VAT applies to the transaction, so always confirm the member state before reading off a figure. Where an invoice combines lines at different rates, calculate each line separately rather than blending them. For specifics, check the national tax authority of the country in question.