Free VAT Calculator
Calculate VAT in seconds — add VAT to a net price, or work backwards from a gross amount to find the net and VAT portions. Supports any rate (UK 20%, Germany 19%, Spain 21%, Ireland 23%, and more).
How the VAT calculator works
Two ways to use it — pick the one that matches your situation.
Choose add or remove
Add VAT starts from a net price and adds the VAT on top. Remove VAT starts from a gross (VAT-inclusive) price and backs out the net.
Enter the amount and rate
Type the amount and the VAT rate (you can tap a common rate chip). The calculator updates the net, VAT and gross figures as you type.
Copy the numbers
Use the net for your invoice line total, the VAT for your tax line, and the gross for what the client pays. No signup required.
Why use this calculator
Instant results
Every change recalculates live — no loading, no wait. Run scenarios in seconds.
Runs in your browser
Nothing is sent to our servers. Your numbers stay on your device.
12 languages
Use it in English, Spanish, French, German, Portuguese, Italian, Dutch, Polish, Japanese, Korean, Chinese, or Arabic.
Accurate and transparent
Clean math with clear breakdowns so you understand every figure — not a black box.
Want to go further than a calculator?
Create a free KipBill account to invoice clients, track payments, manage taxes, and send reminders automatically.
Open free accountVAT Calculator — Frequently Asked Questions
How do you add VAT to a price?+
Multiply the net price by (1 + VAT rate / 100). For a £100 net price at 20% VAT: 100 × 1.20 = £120 gross. The VAT amount is £20. This calculator does it automatically and shows all three figures (net, VAT, gross).
How do you remove VAT from a gross price?+
Divide the gross price by (1 + VAT rate / 100). For a £120 gross price at 20% VAT: 120 / 1.20 = £100 net. The VAT amount is £20. Switch the toggle to "Remove VAT" and this calculator does the reverse calculation for you.
What VAT rate should I use?+
Use the standard VAT rate for the country of supply: UK 20%, Ireland 23%, Germany 19%, France 20%, Spain 21%, Netherlands 21%, Italy 22%, Belgium 21%, Portugal 23%. Reduced and zero rates apply to specific goods (e.g. food, books, children's clothes) — consult your local tax authority for edge cases.
Is this calculator accurate for HMRC / tax returns?+
The math is accurate, but VAT returns involve more than a single calculation — e.g. reverse charge for EU B2B, zero rates, partial exemption. Use this calculator for quick figures and a tax adviser for your return.
Why is the VAT number slightly off by a penny?+
Rounding. When you back out VAT from a rounded gross price, the reverse calculation can land 1 cent off. Tax authorities accept invoices rounded to two decimals; the tiny difference is expected.
Does the VAT calculator support multi-rate invoices?+
This calculator handles one line at a time. To build a full invoice with multiple line items and mixed VAT rates, use KipBill's free invoice generator — each line can carry its own rate and the totals are calculated for you.