Stable Numbers
VAT Calculator
Add VAT or remove VAT at 20%, 5% or any custom rate. See net, VAT and gross instantly. Includes share link, quick presets and an optional multi-item mode.
Calculations use exact factors. Removing VAT divides by . Results are rounded to two decimals for display.
Multi-item list
| Description | Amount | VAT | Total | |
|---|---|---|---|---|
|
£
|
||||
| Totals |
Multi-item mode uses the same mode and rate as above. In remove mode, item amounts are treated as gross. In add mode, item amounts are net.
About this VAT calculator
This page handles both directions. In Add VAT mode you enter a net figure and the calculator adds VAT to reach a gross total. In Remove VAT mode you enter a gross figure and the calculator removes VAT to find the net. It works with standard UK rates of 20% and 5%, and you can set any custom percentage for special cases.
Removing VAT uses a division by the remove factor rather than subtracting a percentage. At 20% VAT the remove factor is 1.2 so a gross of £120 gives a net of £100 and VAT of £20. This avoids the common mistake of subtracting 20% directly from the gross.
Use quick presets for speed or switch on multi-item mode to build a short list and export a CSV. Amounts are rounded to two decimals for display. For invoices or strict reporting, round at the stage required by your software.
Explore more in the tax tools hub.