VAT calculator
Add VAT to a net price or remove VAT from a gross price. Built for common UK rates: standard 20%, reduced 5%, zero 0%, plus a custom rate for unusual cases.
Calculate
Tip: type an amount — results update instantly.
How the VAT calculation works
For the standard UK VAT rate of 20%, adding VAT means multiplying the net price by 1.20. Removing VAT means dividing the gross price by 1.20. The calculator also works with the reduced 5% rate, zero rate and custom percentages.
Notes
- Results are rounded to 2 decimal places (pennies) for display.
- This is a simple calculator — it does not determine whether VAT applies to a specific good or service.
FAQ
How do you add VAT to a price?
To add VAT, multiply the net price by 1 plus the VAT rate. For 20% VAT, gross price = net price × 1.20.
How do you remove VAT from a gross price?
To remove VAT, divide the gross price by 1 plus the VAT rate. For 20% VAT, net price = gross price ÷ 1.20.
What’s the difference between net and gross?
Net is the price before VAT. Gross is the price after VAT is added.
Can I use a custom VAT rate?
Yes — choose “Custom…” and enter a percentage. This is useful for historical rates or non-UK calculations.