VAT / KDV Calculator
Add VAT to a net price or remove VAT from a gross price. Supports EU and Turkish KDV rates.
Value Added Tax (VAT, or KDV in Turkey) sits inside almost every price in dozens of countries, and getting it wrong on an invoice is one of the most common bookkeeping errors small businesses make. This calculator does both jobs cleanly: it adds VAT to a net price to find the gross amount a customer pays, and — just as importantly — it removes VAT from a gross price to recover the net figure, which is the operation people most often botch.
It is built for freelancers, online sellers, and small-business owners who need to quote correctly, reclaim input VAT, and keep their books straight, with presets for common EU rates and Turkish KDV bands. Whether you are setting a price, checking a supplier invoice, or working out how much of a receipt you can reclaim, the tool shows the net amount, the VAT portion, and the gross total side by side so nothing is ambiguous.
Plug in some numbers —
we'll crunch.
How to use
- 1Choose mode: Add VAT to calculate gross price, or Remove VAT to find net price.
- 2Enter the amount.
- 3Select the applicable VAT rate for your country.
- 4Click Calculate to see the VAT breakdown instantly.
How it works
VAT is a percentage added on top of the net (pre-tax) price. To add it, you multiply: Gross = Net × (1 + rate). To go the other way — extracting the VAT already baked into a price — you divide: Net = Gross ÷ (1 + rate). The VAT portion is simply the difference between the two. The reason division is required is that the tax was calculated on the smaller net figure, not on the gross.
VAT is a multi-stage tax: every business in a supply chain charges it on sales (output VAT) and reclaims it on purchases (input VAT), remitting only the difference. The end consumer ultimately bears the whole amount, while registered businesses act as collectors. That is why keeping the net and VAT figures separate on every invoice matters — your business customers need the net price to reclaim their input VAT.
Worked examples
Adding VAT to a quote
You want to charge a client a net fee of €1,000 and the standard rate is 20%.
- Gross = 1,000 × (1 + 0.20) = €1,200.
- VAT portion = 1,200 − 1,000 = €200.
You invoice €1,200 total: €1,000 for your work and €200 of VAT that you collect on behalf of the tax authority and later remit.
Removing VAT from a receipt (the common mistake)
A supplier receipt shows €1,200 including 20% VAT, and you want the net cost.
- Correct: Net = 1,200 ÷ 1.20 = €1,000, so VAT = €200.
- Wrong: 1,200 × 0.80 = €960 — this understates the net and is a frequent error.
The net is €1,000 and the reclaimable VAT is €200. Dividing by 1.20 — not multiplying by 0.80 — is the rule that keeps your VAT return accurate.
Tips & common mistakes
The number-one VAT error is using (1 − rate) to strip tax out of a gross price. Because the tax was added to the net figure, you must divide by (1 + rate) to reverse it. Multiplying by 0.80 to remove 20% VAT always gives a wrong, too-low answer.
Use the right rate for the right goods. Most countries apply a standard rate plus one or more reduced rates for essentials like food, books, and medicine — Turkey, for instance, uses 20%, 10%, and 1% bands. Applying the standard rate to a reduced-rate item over-charges your customer and over-states your liability.
Quote B2B prices net (excluding VAT) and B2C prices gross (including VAT), since consumers care about the final number while businesses reclaim the tax. And do not forget to reclaim input VAT on your own business purchases — it is effectively free money many small operators leave on the table. This tool is for calculation only; confirm registration thresholds and filing rules with your local tax authority.
Frequently asked questions
⚠ For informational purposes only. VAT rates and registration thresholds change — confirm the current rules with your local tax authority or an accountant.
Last reviewed: June 2026
About this calculator
Add VAT to a net price or remove VAT from a gross price. Supports EU and Turkish KDV rates.