Free tool
VAT calculator
Work out VAT from a net price, or the base and tax from a gross price. The rates in force in 2026, exact to the haléř – as it belongs on a document.
Enter an amount – the result shows here.
The formulas
- From the net price: VAT = base × rate ÷ 100; gross = base + VAT.
- From the gross price: VAT = gross × rate ÷ (100 + rate); base = gross − VAT.
Example: a receipt for CZK 1,210 at 21 % → VAT 1,210 × 21 ÷ 121 = CZK 210, base CZK 1,000.
Questions people ask
How do I work out VAT from a price including VAT?
VAT = price incl. VAT × rate ÷ (100 + rate). At 21 % that is price × 21 ÷ 121, at 12 % price × 12 ÷ 112. Since 2019 the old coefficient is gone – the Czech VAT Act (§ 37) computes the tax exactly this way. The base is the price incl. VAT minus the tax.
What are the Czech VAT rates in 2026?
A standard rate of 21 % and a reduced rate of 12 %. On 1 January 2024 the former reduced rates of 10 % and 15 % merged into 12 %. Some supplies are exempt (0 %).
How is VAT rounded?
The calculator rounds to the haléř (half away from zero), as the tax appears on a document. On a multi-line invoice the tax is usually computed per rate from the total base, so the sum of per-line taxes can differ by a haléř.
I need the VAT breakdown of a receipt. Do I have to work it out?
No. Kvitlo reads the VAT breakdown from a photo of the receipt, and when a simplified document lacks one, it works it out from the total just like this calculator.